Publications

@article{nokey,

title = {High-energy interlayer exciton ensembles in MoSe 2/WSe 2 heterostructures by Laguerre-Gaussian excitation},

author = {M Troue and J Figueiredo and G Mittermair and J Kiemle and S Loy and H Lambers and T Taniguchi and K Watanabe and U Wurstbauer and A W Holleitner},

url = {\<Go to ISI\>://WOS:001879354700001},

doi = {10.1088/2053-1583/aea31d},

issn = {2053-1583},

year  = {2026},

date = {2026-12-01},

journal = {2d Materials},

volume = {13},

number = {4},

abstract = {We reveal the higher energetic luminescence part of interlayer exciton ensembles in MoSe 2/WSe 2 heterostructures upon excitation by an optical Laguerre-Gaussian mode. The excitation is achieved with the help of a spatial light modulator giving rise to a ring-shaped distribution of interlayer excitons. A hyperspectral analysis of the exciton photoluminescence suggests that the excitation scheme allows the accumulation of high-energetic excitons in the rings' center. Since the exciton luminescence exhibits a negligible variation of the energetic blue shift of the emission energy as a function of intensity across the rings, we can exclude spatially varying exciton-exciton interactions and a local phase-space filling of lower exciton states to be the dominant underlying process. An incomplete thermalization and an inward propagation of non-thermalized excitons consistently explain the accumulation of high-energetic excitons in the rings' center.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Light-driven olefin epoxidation via poly(Triazine Imide): A route towards sustainable epoxide production},

author = {G A Diab and G P De Sanctis and R M Ferreira and B G Jos\'{e} and K K\"{u}ster and J Sinisi and I R S Menezes and K Krambrock and I L Moudrakovski and V Duppel and B Kumru and I F Teixeira},

url = {\<Go to ISI\>://WOS:001756967700001},

doi = {10.1016/j.apcatb.2026.126839},

issn = {0926-3373},

year  = {2026},

date = {2026-10-05},

journal = {Applied Catalysis B-Environment and Energy},

volume = {394},

abstract = {The selective and sustainable synthesis of epoxides remains a critical challenge in chemical industry, as conventional oxidation routes often rely on transition metals, hazardous oxidants, and energy-intensive conditions, resulting in poor atom economy and limited sustainability. Herein, we report a transition-metal-free photo-catalyst system capable of promoting olefin epoxidation under mild conditions. Poly(triazine imide) (PTI), a highly crystalline carbon nitride, achieves near-quantitative styrene conversion with good selectivity toward styrene oxide under visible-light irradiation, using molecular oxygen (O2) as the sole oxidant and without the need for stoichiometric oxidants, chemical additives and harsh conditions typical of traditional protocols. A comprehensive structural and optoelectronical characterization was performed to correlate catalytic performance with the intrinsic properties of the material. Furthermore, mechanistic investigations were conducted to identify the key reactive species involved in the reaction. In situ EPR spin-trapping experiments reveal the cooperative involvement of photogenerated charge carriers and radical superoxide (O2 center dot-), driving the selective epoxidation process and singlet oxygen as the responsible for the byproducts. Overall, these findings highlight PTI as an efficient metal-free photocatalyst for O2-driven olefin epoxidation and demonstrate the potential of crystalline poly(triazine imide) materials as promising platforms for sustainable oxidation processes.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Ultrafast Laser-Induced Photothermoelectric Currents in Graphene Junctions in the Mid-Infrared},

author = {N Pettinger and M Panhans and J Schmuck and S Loy and X Y Zhou and C Y Dong and J A Robinson and S Zherebtsov and C Kastl and F Ortmann and A W Holleitner},

url = {\<Go to ISI\>://WOS:001883097400001},

doi = {10.1021/acs.nanolett.6c03809},

issn = {1530-6984},

year  = {2026},

date = {2026-09-22},

journal = {Nano Letters},

abstract = {We investigate the carrier dynamics in graphene junctions under mid-infrared excitation using ultrafast pump-probe photocurrent spectroscopy. We utilize dual split gate devices to demonstrate that the photothermoelectric effect can dominate the photocurrent response of graphene also for a mid-infrared femtosecond excitation. Graphene retains its broadband photocurrent response in this spectral region, but the photocurrent relaxation time increases from similar to 2 ps below 8-9 mu m up to 3 ps at longer mid-infrared wavelengths. The absence of a pronounced phonon bottleneck in the decay dynamics at room temperature suggests an efficient interplay of electron-electron and electron-phonon scattering even for photon energies below the optical phonon energy in graphene. The observed wavelength dependence of the photocurrent relaxation times is consistent with energy-dependent theoretical relaxation times as derived from a microscopic transport theory of graphene that includes electron-phonon coupling within a Holstein-Peierls Hamiltonian.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Vacuum-Induced Surface Reconstruction of Mn-Ce Oxides for Low-Temperature Coupled Redox Catalysis},

author = {Y Yin and Y D Jiang and Z C Xu and M Liu and E Cort\'{e}s and Y F Sun},

url = {\<Go to ISI\>://WOS:001880651300001},

doi = {10.1002/anie.2739215},

issn = {1433-7851},

year  = {2026},

date = {2026-09-21},

journal = {Angewandte Chemie-International Edition},

abstract = {Low-temperature redox catalysis over mixed oxides is typically optimized by tuning bulk composition, yet the decisive chemistry occurs at the surface and subsurface interface. Here, we show that this interface can be deliberately reconstructed to enhance Mn-Ce oxide catalysis. Sequential vacuum annealing followed by reduced-pressure O2 treatment induces near-surface Mn enrichment in an as-prepared Mn-Ce oxide while largely preserving the fluorite CeO2 framework. This reconstruction increases the near-surface abundance of Mn-containing species, modifies the Mn-Ce-O interfacial electronic and redox environment, and facilitates oxygen activation and redox cycling. Under coupled conditions, R-MnCe achieved 95.5% NOx conversion at 100 degrees C and complete chlorobenzene conversion at 200 degrees C. In situ spectroscopy and DFT calculations reveal that interfacial electron redistribution lowers the oxygen activation barrier and sustains activated oxygen species that connect NH3-SCR and chlorobenzene oxidation through a shared oxygen-mediated pathway. These results highlight near-surface reconstruction as a promising postsynthetic strategy for improving noble-metal-free mixed-oxide catalysts.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Electrically and optically active charge carrier traps in silicon-doped few-layer GaSe},

author = {M Bissolo and R Li and M Ogura and Z Sofer and S Polesya and D Han and A W Holleitner and C Kastl and G Koblm\"{u}ller and H Ebert and E Zallo and J J Finley},

url = {\<Go to ISI\>://WOS:001882680100001},

doi = {10.1103/8w6z-vwvm},

issn = {2331-7019},

year  = {2026},

date = {2026-09-16},

journal = {Physical Review Applied},

volume = {26},

number = {3},

abstract = {Understanding defects in atomically thin van der Waals (vdW) semiconductors is essential for advancing their use in next-generation optoelectronic and photovoltaic devices. Here, we apply a combination of various impedance spectroscopy techniques to two-dimensional (2D) vdW GaSe doped with silicon (Si) to reconstruct deep trap states across the full bandgap. Deep-level transient spectroscopy reveals three distinct deep states, 0.33, 0.68, and 0.24 eV, below the conduction band edge. Complementary deep-level optical spectroscopy and photocapacitance measurements identify two deep states at 1.4 and 1.8 eV below the conduction band edge and one at 2.0 eV above the valence band edge, with thermal admittance spectroscopy providing additional verification and further resolving two trap states at 0.16 eV above the valence band edge and at 0.26 eV below the conduction band edge. By comparing the experimentally extracted ionization energies with the predictions of density functional theory, our results attribute these trap states primarily to Si-related defects and metal vacancies. This work presents a comprehensive defect map of Si-doped GaSe, providing critical insights into carrier trapping mechanisms that are essential for optimizing the design of 2D material-based devices for industrial applications.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Ligand-directed facile synthesis of monodisperse and stable CsPbX3@SiOx nanocrystals with controlled self-assembly},

author = {N Li and Y T Cai and T L Zheng and Y Y Li and Y Y Wang and S R Li and J Huang and S Z Liang and Y Y Zhou and Y R Du and H Q Leng and W B Zhong and P M\"{u}ller-Buschbaum and L Qiao},

url = {\<Go to ISI\>://WOS:001813762300001},

doi = {10.1016/j.cej.2026.178302},

issn = {1385-8947},

year  = {2026},

date = {2026-09-15},

journal = {Chemical Engineering Journal},

volume = {544},

abstract = {The long-term stability of perovskite nanocrystals (PNCs) is a critical challenge due to their vulnerability to UV light, heat, and moisture, limiting their practical applications. Here, we introduce a facile strategy that combines ligand engineering with a room-temperature coprecipitation method to synthesize monodisperse SiOx-coated PNCs. Key to this strategy is the development of aminosilane ligands with alkyl chains, prepared through a onepot method by reacting amino silanes and alkyl silanes under ambient conditions. These versatile ligands enable the direct synthesis of APbX3@SiOx PNCs ("A" indicates cesium, formamidinium, and methylammonium), and are compatible with a conventional hot-injection method. We demonstrate that varying the structure of aminosilane ligands significantly influences the optoelectronic properties, stability and self-assembly behavior of the resulting PNCs. Specifically, with a relatively long alkyl chain, the synthesized CsPbBr3@SiOx PNCs achieve a high photoluminescence quantum yield (PLQY), alongside markedly enhanced photostability under illumination and structural stability under continuous thermal conditions. Furthermore, the long alkyl chain facilitates the self-assembly of truncated cubic PNCs (approximately 10 nm in size, orthorhombic phase) into higher ordered, densely packed face-centered cubic (FCC) structures within solid films. This ligand-mediated encapsulation strategy offers a versatile and robust pathway for engineering high-performance PNCs tailored for diverse optoelectronic applications.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {A modular plug-and-play reaction platform for operando SEM investigations under fixed-bed conditions},

author = {L Sandoval-Diaz and J Zeininger and D Delgado and K Kappis and F Girgsdies and M Vuijk and A Kubsch and G Von Der Waydbrink and S Matera and G Rupprechter and K Reuter and B Roldan-Cuenya and C Scheurer and A Trunschke and T Lunkenbein},

url = {\<Go to ISI\>://WOS:001876382600001},

doi = {10.1039/d6cy00143b},

issn = {2044-4753},

year  = {2026},

date = {2026-09-10},

journal = {Catalysis Science \& Technology},

abstract = {Fixed-bed reactors are widely employed in heterogeneous catalysis, providing controlled gas flow, efficient gas-solid contact, homogeneous heating and quantitative analysis of catalytic performance. Here, we present a modular platform for operando scanning electron microscopy (OSEM) inspired by these key design principles of fixed-bed reactors, while remaining compatible with the constraints of SEM operation. We demonstrate the system's capabilities using copper oxide reduction and the technologically relevant CO2 hydrogenation over a zincian malachite catalyst as benchmark reactions. We further explore how pressure influences product distribution during CO2 hydrogenation over a spinel catalyst. By combining the imaging ability of electron microscopy with quantitative performance analysis in the proposed configuration, the platform unlocks catalytic insights during activation, reaction and deactivation that were previously inaccessible to conventional SEM approaches.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {A review on vapor-solid growth of GaAs-based nanowires by molecular beam epitaxy: insights from twins, facets, dopants, and dilute species},

author = {H Esmaielpour and H W Jeong and M D\"{o}blinger and A Ajay and D Ruhstorfer and J J Finley and G Koblm\"{u}ller},

url = {\<Go to ISI\>://WOS:001864338400001},

doi = {10.1088/1361-6528/ae987f},

issn = {0957-4484},

year  = {2026},

date = {2026-09-04},

journal = {Nanotechnology},

volume = {37},

number = {35},

abstract = {Vapor-solid (VS) growth presents a robust alternative to vapor-liquid-solid (VLS) techniques for the fabrication of nanowires (NWs), particularly in applications involving doping, accurate control of composition and heterointerfaces, and formation of high-uniformity NW arrays. Despite many obvious advantages, surprisingly few efforts have been undertaken to establish VS growth of GaAs-based NWs, especially in molecular beam epitaxy (MBE) growth. This review encompasses recent developments and breakthroughs in catalyst-free VS growth of GaAs-based NWs through selective-area MBE. It emphasizes the significance of template design on NW characteristics and examines the important roles of twin defects, growth facets, dopants and dilute group-V species, such as silicon (Si) and antimony (Sb), on growth dynamics, adatom diffusion, and crystal phase purity. Si doping emerges as a critical factor in stabilizing twin defects, improving axial growth, NW uniformity, and n-type conduction in GaAs NWs otherwise not feasible in VLS-type growth. The inclusion of dilute Sb in these nanostructures further promotes surfactant action while reducing twin defects, resulting in high-aspect-ratio NWs with superior structural and optical properties. These findings are supported by microscopic growth models that illustrate the relevance of twin defects and competing growth facets. The selective-area MBE growth is further applied to VS-grown ternary AlGaAs NWs as well as axial AlGaAs/GaAs(Sb) and InGaAs/GaAs(Sb) NW heterostructures and their growth-structure-property relationships are elucidated by correlated high-resolution electron microscopy and micro-photoluminescence spectroscopy. This review therefore underscores VS growth of GaAs-based NWs under MBE processes as a versatile approach for the precise engineering of NW heterostructures and implementation on Si substrates.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Mapping Solid Electrolyte Interphase Evolution and Lithium Deposition at Solid-State Interfaces by Operando Nano-focus WAXS},

author = {Y Y Yan and L Z Liu and Y X Liang and F C Apfelbeck and L Y Cheng and G J Pan and D Lei and L X Li and T L Zheng and Z J Xu and L Xia and C Yuan and L Zhang and Y J Cheng and A Davydok and C Krywka and R A Fischer and P M\"{u}ller-Buschbaum},

url = {\<Go to ISI\>://WOS:001868316900001},

doi = {10.1021/acsenergylett.6c01817},

issn = {2380-8195},

year  = {2026},

date = {2026-09-03},

journal = {Acs Energy Letters},

abstract = {Composite solid polymer electrolytes (CSPEs) have emerged as promising candidates for next-generation lithium metal batteries. However, the spatial evolution of the solid electrolyte interphase (SEI) at solid-state interfaces remains poorly understood despite its critical role in lithium metal stability. Herein, the anion-trapping layered double hydroxide (LDH) is introduced to poly(ethylene oxide)-based CSPEs to regulate Li+ transport and stabilize the lithium/electrolyte interface. The LDH-enhanced electrolyte achieves exceptional cycling stability over 950 h with a lithium electrode and 90.1% capacity retention after 250 cycles in LiFePO4||Li full cells. Operando nano-focus wide-angle X-ray scattering maps the spatial distributions of both the SEI and lithium dendrites at the lithium/electrolyte interface across micron-scale lateral and vertical dimensions. The regulated Li+ flux promotes homogeneous lithium deposition and the formation of a robust, multifunctional SEI, thereby suppressing lithium dendrite growth and stabilizing the interface. This study provides direct visualization of SEI evolution in CSPEs and clarifies its role in dendrite-free all-solid-state lithium metal batteries.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Shining Light on Quantum Materials: Interplay of Symmetry, Quantum Geometry, and Nonlinear Photocurrents},

author = {K Mehrgan and A Bernard and C Kastl},

url = {\<Go to ISI\>://WOS:001864195200001},

doi = {10.1002/qute.70407},

year  = {2026},

date = {2026-09-01},

journal = {Advanced Quantum Technologies},

volume = {9},

number = {9},

abstract = {Nonlinear photocurrents offer a versatile microscopic and broadband spectroscopic tool for quantum materials: optical excitation from terahertz to optical frequencies can generate a dc current that is read out electrically without engineered junctions or external bias fields. Canonically, second-order dc photocurrents are differentiated into shift, injection, and ballistic currents, associated with real-space wave-packet displacement during photoexcitation, asymmetric excitation of Bloch states with different group velocities, and scattering-controlled transport of injected carriers. A modern viewpoint recasts these mechanisms in terms of quantum geometry, linking intrinsic nonlinear response to Berry connections, Berry curvature, and quantum metric, while retaining the role of relaxation and disorder in steady-state experiments. This framework applies across a broad range of systems, including polar and magnetic quantum materials, van der Waals heterostructures, topological phases, and flat-band systems. Looking forward, many-body effects and light-wave-driven symmetry control may extend nonlinear photocurrents from probes of quantum matter toward tools for steering nonequilibrium quantum states.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Contrast formation in optical microscopy of two-dimensional materials studied via Fourier plane imaging},

author = {S Hartmann and Z H Xu and L Lafeta and A Hartschuh},

url = {\<Go to ISI\>://WOS:001863667900026},

doi = {10.1364/josab.603198},

issn = {0740-3224},

year  = {2026},

date = {2026-09-01},

journal = {Journal of the Optical Society of America B-Optical Physics},

volume = {43},

number = {9},

pages = {2094-2099},

abstract = {Optical microscopy provides a versatile tool for the investigation of two-dimensional (2D) materials such as transition metal dichalcogenides and graphene. By detecting reflected or elastically scattered light, it offers a convenient and sensitive method to locate 2D flakes and extract their optical constants. In reflection microscopy with focused illumination, the resulting image contrast arises from the interference of waves whose amplitude and phase depend on the angle- and polarization-dependent reflectivity of the 2D-material interface. In this paper, Fourier plane detection is shown to enable the direct visualization of this angle- and polarization-dependent reflectivity in a single image. Fourier plane images of monolayer MoSe2 on glass, acquired at different photon energies, display characteristic signal contributions of opposite sign that can be accurately modeled using the complex optical sheet conductivity of MoSe2. Moreover, constructing four-dimensional (4D) data sets by raster-scanning the sample and recording Fourier plane images at each point allows Fourier space filtering and yields significant contrast enhancement. These results deepen the understanding of contrast mechanisms in 2D materials and are relevant for related techniques based on elastically scattered light, such as transient reflection microscopy. (c) 2026 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Solubility-guided interlayer design toward balanced lithium metal plating and stripping in garnet solid-state batteries},

author = {H Y W Chu and C Lerch and S G Y Chong and L Schulz and T Fuchs and K J Kim and M Balaish and H L Tuller and J Janek and J L M Rupp},

url = {\<Go to ISI\>://WOS:001850501800001},

doi = {10.1039/d6ee03852b},

issn = {1754-5692},

year  = {2026},

date = {2026-09-01},

journal = {Energy \& Environmental Science},

volume = {19},

number = {17},

pages = {5836-5856},

abstract = {The metal-electrolyte interface poses a major challenge in solid-state lithium-metal batteries due to interfacial delamination and dendrite penetration. Although lithium-alloying metal interlayers have been studied to stabilize the interface, a unified framework to compare their relative effectiveness remains limited. This study proposes a lithiophilicity-guided strategy to select optimal anode interlayers for Li-garnet electrolytes, assessing lithiophilicity via lithium solubility in the host metal. Copper, gold, and silver were chosen to represent low, intermediate, and high lithiophilicity, respectively, based on their binary phase diagrams. During cycling, copper's low lithiophilicity led to limited lithium nucleation and uneven growth, whereas silver's high lithiophilicity enabled controlled plating but caused vacancy formation and void aggregation upon stripping. Gold, with intermediate lithiophilicity, achieved balanced performance by supporting uniform plating and stripping at current densities above 1 mA cm-2. Building on the correlation, platinum was identified as a promising candidate with moderate lithium solubility, achieving low interfacial resistance (1 Omega cm2) and a high critical current density (1.2 mA cm-2). Lithiophilicity, a thermodynamically accessible and empirically grounded descriptor, serves as a reliable criterion for metallic interlayer material selection. This guideline can accelerate the discovery of high-performance interlayers and the development of stable solid-solid interfaces in next-generation lithium batteries.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Engineering Atomically Precise Cu4I4 Nanoclusters With Integrated Adsorption and Hydrogenation Functions for Efficient Photocatalytic Nitrate-to-Ammonia Conversion},

author = {W T Zhang and Y H Li and J J Jin and C W Dong and X Cao and X C Li and X J Wu and J Q Wang and A Ullah and G F Vaggione and R A Iglesias and Y Chen and E Cort\'{e}s and D S Zhang},

url = {\<Go to ISI\>://WOS:001862396600001},

doi = {10.1002/anie.5529008},

issn = {1433-7851},

year  = {2026},

date = {2026-08-29},

journal = {Angewandte Chemie-International Edition},

abstract = {Photocatalytic nitrate reduction to ammonia offers a sustainable route that couples environmental remediation with nitrogen resource utilization. However, this transformation suffers from sluggish kinetics and insufficient hydrogenation, leading to poor selectivity and efficiency. Herein, we report the deposition of Cu4I4 nanocluster onto TiO2 (Cu4I4/TiO2) that achieves efficient and selective photocatalytic nitrate reduction to ammonia under mild conditions. The active site derived from an atomically precise Cu4I4Py4 (Py = pyridine) nanocluster introduces sterically accessible copper sites with intrinsically unsaturated coordination and enhanced Lewis acidity for nitrate adsorption and activation. The iodide ligands in Cu4I4 motif directly bonded to copper atoms are suggestive of promoting the generation of reactive hydrogen species (*H). The atomic-scale proximity of copper and iodide sites facilitates efficient *H utilization in the multistep hydrogenation toward NH3. Consequently, Cu4I4/TiO2 delivers an ammonia generation rate of 26.8 mmol \& centerdot;gcat -1 \& centerdot;h-1 with good selectivity in a sacrificial-reagent-assisted photocatalytic nitrate reduction system. In situ characterizations and theoretical calculations support the plausible cooperative dual-site mechanism, which synergistically ensures the deep hydrogenation of nitrate and its intermediates to ammonia. This work establishes an atomic-level design paradigm for constructing multifunctional nanocluster catalysts that address the selectivity and efficiency challenges inherent to complex multiple proton/electron-involved reactions.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {A Proof-of-Concept Interdigitated 3D Lithium-Ion Battery Cell Architecture Using Patterned Carbon Nanotube Forests},

author = {R B Church and M T Robinson and S C Sand and L P Kong and J L M Rupp and A J Hart},

url = {\<Go to ISI\>://WOS:001861249100001},

doi = {10.1149/1945-7111/ae81f3},

issn = {0013-4651},

year  = {2026},

date = {2026-08-28},

journal = {Journal of the Electrochemical Society},

volume = {173},

number = {16},

abstract = {Planar lithium-ion cells with thick electrodes are often subject to an inherent tradeoff between energy and power density due to tortuous lithium-ion diffusion distances through the porous electrodes. Interdigitated 3D cell architectures circumvent this problem by incorporating thick electrode designs while also keeping lithium-ion diffusion distances short, thereby enabling cells with high energy and power densities. However, attempts to fabricate interdigitated cells have been hindered by difficulty in producing conformally coated electrolytes and incorporating the second electrode. Previously, we demonstrated that patterned vertically aligned carbon nanotubes (VA-CNTs) grown directly on Cu foil and coated with Si thin films could serve as a versatile template for high energy density 3D electrodes. Here, we investigate these Si-CNT composites as a template for 3D full cell design. Initiated chemical vapor deposition (iCVD) is used to deposit conformal poly(hydroxyethyl methacrylate-co-ethylene glycol diacrylate) thin film electrolytes onto patterned Si-CNT composites structures. To complete the full cell, a slurry-based cathode is infiltrated into the patterned iCVD coated Si-CNT composite. This cell stack is then soaked in a liquid electrolyte and cycled, making this work the first demonstration of a 3D full cell fabricated using VA-CNTs and an iCVD electrolyte.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Mg2+Ions as Interfacial Charge Bridges for Enhanced Photocatalytic Hydrogen Evolution in Poly(Heptazine Imide)},

author = {G A Diab and V G S Pastana and S Stolfi and R M Ferreira and I F Reis and M R Da Silva and C V C Ribeiro and K K\"{u}ster and P Torelli and P Ghigna and V Duppel and M Fagnoni and S Bette and B R Serino and A F De Moura and D Ravelli and B V Lotsch and I F Teixeira},

url = {\<Go to ISI\>://WOS:001861013700001},

doi = {10.1002/smll.75403},

issn = {1613-6810},

year  = {2026},

date = {2026-08-27},

journal = {Small},

abstract = {Optimizing charge transfer at the solid-liquid interface remains a central challenge for photocatalytic hydrogen evolution, particularly in polymeric semiconductors with limited electron-donating ability. Here, we demonstrate that Mg2+ incorporated into poly(heptazine imide) (PHI) acts as a catalytic promoter by synergistically coupling semiconductor charge transport with Pt co-catalysts, thereby overcoming kinetically limited interfacial electron transfer. Using H2 evolution as a model reaction, Mg incorporation into Na-PHI enhanced the hydrogen evolution rate by more than 2.5-fold and introduced a linear dependence on Pt loading, an effect absent in pristine Na-PHI. In situ XANES reveals reversible electronic modulation of Mg2+ exclusively in the presence of Pt and water, confirming its direct participation in interfacial charge mediation. Complementary photophysical, (photo)electrochemical, and molecular dynamics simulations indicate that Mg2+ polarizes water molecules through a dynamic Mg2+-OH delta-H delta+-Pt interfacial motif, facilitating proton transfer toward Pt while stabilizing hydroxide species. Beyond the activity enhancement, Mg-PHI exhibits improved structural stability by resisting framework protonation during recycling. Collectively, these findings establish Mg2+ as a catalytic promoter and demonstrate that interfacial charge-bridge effects can be rationally heterogenized, providing a general strategy for enhancing photocatalytic hydrogen evolution through targeted interface engineering.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {In Situ SERS Monitoring of Plasmon-Mediated Degradation of Microplastics (vol 148, pg 3462, 2026)},

author = {J Y Yang and M C Kang and R K Chitumalla and E Cortes and J Jang and S H Lee},

url = {\<Go to ISI\>://WOS:001847580200001},

doi = {10.1021/jacs.6c13807},

issn = {0002-7863},

year  = {2026},

date = {2026-08-26},

journal = {Journal of the American Chemical Society},

volume = {148},

number = {33},

pages = {36272-36273},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Localization of Apicomplexa Motor Myosin A with AxialNanometric Precision Using Graphene Energy Transfer},

author = {G Ferrari and Y Song and M Hensel and O E Psathaki and D T N Nguyen and S Gras and M Meissner and P Tinnefeld and J Periz},

url = {\<Go to ISI\>://WOS:001847594600001},

doi = {10.1021/acs.nanolett.6c01982},

issn = {1530-6984},

year  = {2026},

date = {2026-08-26},

journal = {Nano Letters},

volume = {26},

number = {33},

pages = {11002-11008},

abstract = {Apicomplexan parasites exhibit gliding motility, a fast locomotion mode, yet the precise localization of the migration motor myosin A (MyoA) remains unresolved because of limitations in light microscopy axial resolution, leading to two competing models: one placing MyoA in the cytoplasm and the linear model positioning it between the plasma membrane and the inner membrane complex (IMC), a doubled membrane underneath. To distinguish between these models, we applied graphene energy transfer (GET), a fluorescence-based axial ruler with nanometer precision, and determined the vertical position of MyoA relative to IMC1, a structural IMC marker. GET measured IMC dimensions with accuracy comparable to electron microscopy while preserving molecular specificity. The results were independently validated using live stimulated emission depletion (STED) imaging of vertically oriented parasites in agarose cylinders and expansion microscopy STED. Our data localize a major fraction of MyoA within the membrane-IMC space, supporting a linear motor model and establishing GET for nanoscale protein mapping.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Relaxation dynamics of chromium(iii)-oxalate complexes upon excitation in the UV},

author = {S M Durkan and D Sandner and R J Mcgarry and L Varvarezos and L Tabrizi and J T Costello and M T Pryce and R Kienberger and H Iglev},

url = {\<Go to ISI\>://WOS:001843832000001},

doi = {10.1039/d6cp01012a},

issn = {1463-9076},

year  = {2026},

date = {2026-08-26},

journal = {Physical Chemistry Chemical Physics},

volume = {28},

number = {33},

pages = {20289-20303},

abstract = {Relaxation dynamics of chromium(iii) oxalate coordination complexes were investigated with the aid of time-resolved infrared (TRIR) and low-temperature emission spectroscopy. Interpretation of these results was aided by density functional theory (DFT) and time-dependent density functional theory (TD-DFT) calculations. Time resolved infrared (TRIR) spectroscopy following excitation at 267 nm was used to probe the C-O and C 00000000 00000000 00000000 00000000 11111111 00000000 11111111 00000000 00000000 00000000 O vibrational modes in a series of Cr(iii)oxalate complexes. Lifetimes of 10-15 ps were obtained and assigned to the ground-state recovery from the lowest quartet excited state (4T2g). A long-lived nanosecond component was also observed for [Cr(iii)(oxalate)(bpy)2]+, and attributed to population of the lowest doublet state. Vibrational cooling with a lifetime of similar to 4 ps was proposed to suppress back inter-system crossing (BISC). In the other chromium complexes, more efficient BISC likely prevents doublet-state accumulation. Low-temperature emission measurements revealed phosphorescence which was absent at room temperature. These emissions exhibited decreasing lifetimes as the energy gap between the 2E and 4T2g excited states narrows, demonstrating the continued influence of thermally activated BISC even at 77 K.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Structural Evolution and Catalytic Activity of TinTelluride for the Electrochemical Carbon Dioxide Reduction},

author = {M Samanta and Y Weidemann and L Yao and P Hosseini and V Duppel and K Kuster and K Tschulik and B V Lotsch},

url = {\<Go to ISI\>://WOS:001839400700001},

doi = {10.1021/acs.chemmater.6c00931},

issn = {0897-4756},

year  = {2026},

date = {2026-08-25},

journal = {Chemistry of Materials},

volume = {38},

number = {16},

pages = {8271-8280},

abstract = {Tin-based compounds, particularly SnO2-derived catalysts, are extensively studied for selective electrochemical reduction of carbon dioxide (eCO(2)RR) to formate. Compared with tin oxides, tin chalcogenides such as SnTe remain relatively unexplored for eCO(2)RR, in spite of having desired electronic properties, often combined with native surface oxide layers. In this work, we report the catalytic behavior of finely powdered polycrystalline SnTe showing high activity toward CO2 reduction as well as the hydrogen evolution reaction (HER). We show that SnTe exhibits selective eCO(2)RR toward formate in 0.5 M CsHCO3, with a partial current density of -35 mA cm(-2) at -1.1 V vs RHE, similar to SnO2. Concurrently, SnTe exhibits high activity toward HER, in contrast to SnO2. Comprehensive potential-dependent structural characterizations and operando SEIRAS measurements suggest that the chemical transformation of SnTe and SnO2 to a Sn-rich active surface under high reductive potential may be the reason for their similar eCO(2)RR activity. On the other hand, control experiments on elemental Te and SnO2 as well as XPS and operando SEIRAS data point to a possible role of residual tellurium on the surface of the SnTe precatalyst to drive the HER. This work underscores the significance of understanding the in situ transformation of the precatalyst to the active species during the eCO(2)RR to rationalize its activity and product selectivity.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Nanocrystalline LCO/LLZO Composite Cathode Films for Solid State Batteries},

author = {L Quincke and S Weinmann and J J Hinricher and M Galasso and C Althammer and F Kurnia and K J Kim and W Kiebach and J L M Rupp},

url = {\<Go to ISI\>://WOS:001857933200001},

doi = {10.1002/aenm.71490},

issn = {1614-6832},

year  = {2026},

date = {2026-08-25},

journal = {Advanced Energy Materials},

abstract = {Scalable fabrication of high-performing composite cathodes remains a key hurdle for oxide-based all-solid-state batteries (ASSBs). Li-garnet (Li7La3Zr2O12, LLZO) electrolytes provide high ionic conductivity and compatibility with lithium metal, yet, combining them with high-voltage layered oxides is often limited by high-temperature ceramic processing that complicates manufacturing and promotes interfacial side reactions. Here we report a LiCoO2/LLZO composite cathode prepared by single-solution spray deposition that co-deposits all constituents at a maximum processing temperature of 750 degrees C. The process produces dense, crack-free, micrometer-thick layers with nanograined, phase-separated microstructures. The two phases of cubic LLZO and layered LiCoO2 crystallize independently, only minor secondary phases form, and no cobalt migration into the LLZO substrate is detected. Consistent with a low cathode-electrolyte interfacial resistance observed after the first charge, full cells with lithium metal exhibit 111.7 mAh g-1 CAM initial discharge capacity and retain 93% of the capacity over 100 cycles. Capacity fade is dominated by progressive growth of cathode-electrolyte interfacial impedance, whereas post-mortem microscopy reveals preserved adhesion and morphology, suggesting the nanograined architecture accommodates cathode volume changes without severe cracking or delamination. Overall, single-solution co-deposition offers a practical, low-thermal-budget route to oxide composite cathodes and a scalable platform for extending LLZO-based ASSBs to broader cathode chemistries.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Operando Monitoring of InterfacialChemistries and Potentials on Ni-Rich NCM811 Using Ambient PressureX-ray Photoelectron Spectroscopy},

author = {S M Qian and A T S Freiberg and R Wilhelm and O Q Carvalho and J Mahl and R Hamlyn and H A Gasteiger and E J Crumlin},

url = {\<Go to ISI\>://WOS:001846270000001},

doi = {10.1021/acs.chemmater.6c00312},

issn = {0897-4756},

year  = {2026},

date = {2026-08-25},

journal = {Chemistry of Materials},

volume = {38},

number = {16},

pages = {8135-8147},

abstract = {Ni-rich layered transition metal (TM) oxides, such as Li1+x [Ni0.8Co0.1Mn0.1]1-x O2 (NCM811), are widely used as state-of-the-art cathode active materials (CAMs) in lithium-ion batteries (LIBs). At high Ni-contents, however, these materials suffer from surface instability, oxygen release, and structural degradation upon prolonged cycling. In this work, operando ambient pressure X-ray photoelectron spectroscopy (AP-XPS) was used to follow the real-time surface chemistry and local potentials of NCM811 during the first charge and discharge, with a focus on processes at the CAM/electrolyte interface. To interpret the operando O 1s spectra, a peak-fitting model was developed that allows oxygen-related surface changes to be followed during cycling. Consistent with previous reports, oxygen evolution is detected by online electrochemical mass spectrometry (OEMS) at around 80% state-of-charge (SOC), and is accompanied by changes in the organic electrolyte components and the formation of an oxygen-depleted metal oxide surface layer. Some oxidation-related changes of the electrolyte are partially reversible upon discharge, whereas the oxygen-depleted metal oxide layer persists. By combining operando AP-XPS with OEMS measurements, this work provides a surface-sensitive, operando description of oxygen-release-related interfacial processes and their potential dependence. These results provide a clearer picture of how oxygen-release-driven degradation pathways affect the surface chemistry of Ni-rich CAMs and help identify the processes that need to be controlled to improve surface stability and electrochemical performance in future LIBs.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {The Influence ofthe Strong Metal-Support Interactionin the Photocatalytic Hydrogen Evolution Reaction from Pt-Loaded Titania},

author = {P Petzoldt and L Mengel and S Mackewicz and M Eder and C Courtois and J Reich and S Kaiser and F Esch and B J Lechner and O Olaniyan and T Roongcharoen and L Sementa and A Fortunelli and M Tschurl and U Heiz},

url = {\<Go to ISI\>://WOS:001856092700001},

doi = {10.1021/acs.jpcc.6c04696},

issn = {1932-7447},

year  = {2026},

date = {2026-08-21},

journal = {Journal of Physical Chemistry C},

abstract = {Tuning hydrogen evolution cocatalysts to suppress unwanted side and back reactions is critical for obtaining high catalytic efficiency and stability in photocatalysts comprising noble metal particles. The reactivity of such particles on reducible oxidic support materials, such as titania, can be tuned by exploiting the so-called strong metal-support interaction (SMSI). Yet a fundamental understanding of the effect of the SMSI on the catalytic activity remains lacking, in particular in photocatalytic systems. Such insights, however, are crucial for rationally designing catalysts and exploiting the full potential of this phenomenon. Herein, we utilize the photocatalytic gas-phase oxidation of alcohols on Pt-loaded TiO2, in combination with DFT simulations on TiO x /Pt(111), to gain an atomistic understanding of the effects of the SMSI on the hydrogen evolution reaction. We perform heat treatments at different temperatures in vacuum and investigate the resulting photoreactivity of methanol. The measurements show that annealing to 700 K alters the photoactivity depending on cocatalyst loading and the initial degree of titania reduction. Furthermore, scanning tunneling microscopy reveals the effect of temperature on cluster dispersion. Finally, we conduct theoretical simulations on a model system, which suggest that defects in very thin titania films can act as hydrogen evolution centers, outlining a yet unconsidered pathway for hydrogen formation on encapsulated Pt particles.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Hydroxyl-Supply Engineering via Bifunctional Pt-Ga Dual Sites Enables Low-Temperature CF4 Catalytic Hydrolysis},

author = {H Zhang and H P Chen and N Hu and X J Wang and J L Zheng and W J Luo and E Pensa and K Liu and Z Lin and L Y Chai and W Z Li and E Cort\'{e}s and M Liu},

url = {\<Go to ISI\>://WOS:001852525700001},

doi = {10.1021/acscatal.6c04609},

issn = {2155-5435},

year  = {2026},

date = {2026-08-18},

journal = {Acs Catalysis},

abstract = {Catalytic hydrolysis is an effective route for decomposing perfluorocarbons, yet its efficiency is fundamentally limited by the rapid depletion of surface hydroxyl species required for C-F bond activation. Herein, we reported a bifunctional Pt-Ga dual-site strategy that enables continuous hydroxyl supply and thereby promotes low-temperature CF4 hydrolysis. Structural and spectroscopic analyses confirmed the formation of atomically proximate Pt-Ga dual sites on Al2O3, where Pt facilitates H2O adsorption while Ga promotes its dissociation into reactive hydroxyls. In situ diffuse reflectance infrared Fourier transform spectroscopy revealed that the Pt-Ga dual sites enhanced H2O adsorption and hydroxyl generation by factors of 1.5 and 3.9, respectively, compared to monometallic counterparts. This hydroxyl enrichment markedly strengthened C-F bond activation, as evidenced by a redshift (5 cm-1) in the CF4 vibrational mode. Kinetic analysis further demonstrated that the coupled H2O adsorption-dissociation process maximizes the steady-state coverage of reactive M-OH species. As a result, PtGa/Al2O3 achieved complete CF4 decomposition at a low temperature of 550 degrees C and maintained similar to 80% conversion at 540 degrees C for 100 h without detectable deactivation, outperforming most reported systems. This work establishes hydroxyl-flux engineering via bifunctional site design as a general strategy for activating inert C-F bonds and advancing the catalytic detoxification of persistent fluorinated pollutants.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Epitaxial Oxide Interfaces Create Poison-Resistant CuO Sites for Environmental Catalysis},

author = {L P Han and Y Q Li and Y J Shen and H J Yu and E Pensa and X H Yang and Y Q Chen and X N Hu and X Y Wang and S Li and G W Qin and W Q Qu and M Xie and E Cort\'{e}s and D S Zhang},

url = {\<Go to ISI\>://WOS:001847164400001},

doi = {10.1002/anie.7111765},

issn = {1433-7851},

year  = {2026},

date = {2026-08-12},

journal = {Angewandte Chemie-International Edition},

abstract = {Real exhaust streams rarely contain a single pollutant: NOx coexists with volatile organic compounds (VOCs) in flue gas from petrochemical production, chemical manufacturing, and waste incineration, yet catalysts that couple NH3-SCR with VOC oxidation typically suffer competitive adsorption, sulfur poisoning, and HCN byproduct formation. Here we engineer an epitaxially stabilized CuO overlayer on Ti1-xInxO2 that breaks the activity-selectivity-stability constraint by creating electron-poor, high-symmetry Cu-O sites and activating lattice-oxygen redox at the oxide-oxide interface. Interfacial strain and charge transfer increase Cu-O covalency and Lewis acidity, accelerating NOx reduction via an Eley-Rideal pathway while diverting sulfate deposition away from Cu. Concurrently, interface-activated lattice oxygen sustains deep oxidation of CH3SH (a representative S-VOC) through a Mars-van Krevelen cycle, suppressing HCN. Epitaxial interfaces thus offer a general route to poison-resistant multipollutant catalysis.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Disentangling surface and bulk properties of TaN photoanodes},

author = {L M Wolz and A Buyan-Arivjikh and J F Dushimineza and J Dittloff and L I Wagner and G Gr\"{o}tzner and J L Bl\"{a}nsdorf and M Kuhl and S Levashov and J K\"{u}hne and G Zhou and S Matich and S Santra and V Streibel and F Munnik and K M\"{u}ller-Caspary and I D Sharp and P M\"{u}ller-Buschbaum and J Eichhorn},

url = {\<Go to ISI\>://WOS:001847830300005},

doi = {10.1038/s41467-026-76117-y},

year  = {2026},

date = {2026-08-11},

journal = {Nature Communications},

volume = {17},

number = {1},

abstract = {Understanding how material and defect characteristics govern photoelectrochemical performance is essential for developing efficient and stable photoelectrodes. Although bulk properties are often emphasized, surfaces and interfaces can equally determine activity and stability under operation. Here, we use depth-sensitive characterization to disentangle surface and bulk properties of Ta3N5 thin films. By preparing photoelectrodes from TaOx, TaNx, and Ta precursors, we systematically vary shallow and deep-level defect concentrations. Structural, compositional, and optoelectronic analyses show that the surfaces consistently exhibit oxygen enrichment, increased structural disorder, and higher deep-level defect densities than the bulk. However, the specific surface structure and its spatial extent depend strongly on precursor chemistry. Ta3N5 derived from TaOx forms an extended, amorphous, oxide-rich surface with fewer deep-level defects, whereas TaNx and Ta-derived Ta3N5 films exhibit thinner, more crystalline surfaces with increased mid-gap defect densities. A brief hydrofluoric acid treatment removes the disordered surface layer, improving crystallinity and hydrophilicity and enhancing photoelectrochemical performance and stability for ferrocyanide oxidation. These results highlight interfacial and defect engineering as routes toward durable, high-efficiency Ta3N5 photoelectrodes.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {All-Inorganic Metal-Halide Perovskite Epitaxy: CsSnI3/Ag(100) at the Atomic Scale},

author = {P V Vicente and F P Delgado and J Deyerling and W Auwarter and D A Egger and P Feulner and J V Barth and F Allegretti},

url = {\<Go to ISI\>://WOS:001834451300001},

doi = {10.1021/acsaem.6c01749},

issn = {2574-0962},

year  = {2026},

date = {2026-08-10},

journal = {Acs Applied Energy Materials},

volume = {9},

number = {15},

pages = {10219-10230},

abstract = {An all-inorganic perovskite, CsSnI3 constitutes one of the most promising candidates for next-generation photovoltaic devices in light of its stability, power conversion efficiency, and low toxicity, compared to other perovskite compositions. In this work, we report the structural evolution of CsSnI3 upon epitaxial growth on the Ag(100) surface in ultra-high vacuum. By means of multiple techniques, namely, low-energy electron diffraction (LEED), (temperature-programmed) X-ray photoelectron spectroscopy (XPS, TP-XPS), low-temperature scanning tunnelling microscopy and spectroscopy (LT-STM, STS), temperature-programmed desorption (TPD), and density functional theory (DFT), we describe the formation of an interfacial SnI x layer, on top of which the perovskite islands nucleate and merge to form extended terraces. Due to an imbalance in the stoichiometry of SnI2 during molecular-beam epitaxy, we identify separate Sn addition and subsequent CsI + SnI2 codeposition at 375 K as the most effective method for the growth of high-quality CsSnI3 surfaces. Finally, we provide evidence of the presence of both CsI and SnI2 surface terminations in the grown CsSnI3, paving the way for atomic-scale insights into the electronic and chemical properties of this highly promising class of materials.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Room-Temperature Synthesis of Strongly Confined Lead Halide Perovskite Quantum Dots},

author = {A Abfalterer and Y J Zhou and R Jayabalan and J Holzinger and L M Rescher and R Hooijer and A Ullrich and N A Henke and I Plangger and E Aydin and B Nickel and A K Sch\"{u}tz and W Br\"{u}tting and A S Urban},

url = {\<Go to ISI\>://WOS:001843911800001},

doi = {10.1002/adfm.76727},

issn = {1616-301X},

year  = {2026},

date = {2026-08-10},

journal = {Advanced Functional Materials},

abstract = {Colloidal quantum dots (QDs) are promising for light-emitting applications, but their synthesis under ambient conditions remains challenging. Here we present a rapid, room-temperature (RT) method that produces highly stable QDs within minutes using the zwitterionic ligand 2-ammonioethyl 2-octyl-1-dodecyl phosphate (OD-PEA). The strong binding of OD-PEA enables precise size control and effective passivation, yielding blue-emitting QDs () with narrow linewidths () and high photoluminescence quantum yields (up to 86 %). The QDs retain their optical quality for months in air and offer tunable emission from blue-cyan through ligand concentration, and from ultraviolet to deep red via halide exchange. A proof-of-concept perovskite light-emitting diode (PeLED) fabricated from these QDs exhibits appreciable electroluminescence (EL) at with a low turn-on voltage. This work establishes a simple and scalable strategy for producing stable, strongly confined perovskite QDs, advancing their potential for next-generation optoelectronic and photonic technologies.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Molecularly Precise Triangular Termination of Kagome Covalent Organic Framework Crystals Enabled by Side-Chain Engineering},

author = {T H Xue and M D\"{o}blinger and I Munoz-Alonso and R Guntermann and T Bein},

url = {\<Go to ISI\>://WOS:001790366400001},

doi = {10.1002/anie.5591473},

issn = {1433-7851},

year  = {2026},

date = {2026-08-10},

journal = {Angewandte Chemie-International Edition},

volume = {65},

number = {33},

abstract = {High-resolution structural characterization of two-dimensional (2D) kagome covalent organic frameworks (COFs) remains limited, often leaving critical questions about lattice ordering and surface-terminating functionality largely unanswered. To address this challenge, we designed a series of acceptor-donor-acceptor linear linkers based on benzo[1,2-b:4,5-b ']dithiophene and 2,1,3-benzothiadiazole units with systematically varied alkoxy side chains. Diverse 2D kagome COFs bearing methoxy, ethoxy, and propoxy side chains were synthesized by imine condensation of these linkers with a dibenzo[g,p]chrysene-based node. While featuring identical backbone architecture, the resulting COFs exhibit remarkably different degrees of crystallinity, demonstrating the critical role of side-chain length in regulating framework ordering. Owing to its superior crystallinity and large pore apertures, the methoxy-substituted COF (OMe COF) enables direct real-space visualization of extended kagome pore lattices by high-resolution transmission electron microscopy (HRTEM). Furthermore, highly crystalline and preferentially oriented OMe COF thin films were synthesized, allowing for detailed HRTEM analysis. Strikingly, HRTEM could clearly resolve triangular terminations of the kagome lattice, thereby establishing the half-condensed dibenzochrysene nodes as the triangular pores terminating the crystal facets and providing unprecedented real-space evidence of exposed amino groups. These findings create a structural basis for the future rational design of surface functionalization and potential interfacial engineering in 2D kagome COFs.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Lateral Size GovernsHydrogen Evolution Reaction Mechanismsand Kinetics of Ultrathin Pd Nanosheets in Acidic and Alkaline Electrolytes},

author = {H Y Gai and H R Ma and C M Schott and E L Gubanova and H T Yu and X M Xu and E Kolibalova and M Gruber and P M Schneider and J Zhou and J M Macak and Z X Xie and A S Bandarenka},

url = {\<Go to ISI\>://WOS:001832955300001},

doi = {10.1021/acs.jpcc.6c03229},

issn = {1932-7447},

year  = {2026},

date = {2026-08-06},

journal = {Journal of Physical Chemistry C},

volume = {130},

number = {31},

pages = {10874-10884},

abstract = {Understanding the influence of nanoscale geometry on hydrogen evolution reaction (HER) mechanisms and kinetics is crucial for rational catalyst design. Here, we construct a well-defined model system of ultrathin Pd nanosheets with controlled lateral sizes (ca. 11 to 44 nm) and comparable thickness to systematically probe lateral size effects on HER kinetics in different electrolytes. Electrochemical impedance spectroscopy (EIS) was employed to analyze size-dependent interfacial kinetics and reaction mechanisms. In an acidic electrolyte, HER proceeds through a Volmer-Heyrovsky-dominated mechanism with a parallel Volmer-Tafel pathway, where lateral size influences both the intrinsic kinetics and the relative kinetic contribution. In alkaline electrolytes, HER kinetics are dominated by adsorption-related interfacial processes, and the lateral size affects the interfacial adsorption resistance. These results demonstrate that lateral size, a key geometric parameter, regulates HER mechanisms and kinetics under both acidic and alkaline conditions.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Lasing from SOI-Integrated GaAsSb Nanowires via Resonator-DrivenOptical Feedback},

author = {J Zollner and C Doganlar and C G Marcilla and S Meder and G Koblmuller and J J Finley},

url = {\<Go to ISI\>://WOS:001831257500001},

doi = {10.1021/acs.nanolett.6c02235},

issn = {1530-6984},

year  = {2026},

date = {2026-08-05},

journal = {Nano Letters},

volume = {26},

number = {30},

pages = {9888-9894},

abstract = {Silicon photonic integrated circuits critically depend on compact on-chip light sources, for which nanowire (NW) lasers are an attractive solution. However, their practical implementation is often limited by broad emission line widths and poor frequency stability resulting from weak optical feedback. Here, we integrate individual GaAsSb NWs by transfer-printing onto silicon-on-insulator (SOI) racetrack resonators to realize optical feedback at silicon-transparent wavelengths. Finite-difference-time-domain simulations reveal efficient coupling between the hybrid NW-waveguide mode and the fundamental TE resonator mode, with calculated cavity Q factors exceeding 10(4). Experimentally, we observe feedback-induced lasing emission at a low threshold (P-th) of 8.6 +/- 1.8 mu J/cm(2). Compared to identical NW lasers without SOI resonator, the line width is reduced by more than a factor of 4 at 3P(th) and remains stable below 1.8 meV up to 5P(th). Our results demonstrate NW-based light sources on SOI and show that tailored resonator designs enable improved line width control and frequency stabilization.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Role of photonic interference in exciton-mediated magneto-optic responses},

author = {G Budak and C Riedel and A Kamra and P Rinke and C Back and M Stosiek and F Dirnberger},

url = {\<Go to ISI\>://WOS:001843685500001},

doi = {10.1103/lclk-3tfl},

issn = {2469-9950},

year  = {2026},

date = {2026-08-03},

journal = {Physical Review B},

volume = {114},

number = {9},

abstract = {Coupled optical and magnetic excitations can give rise to remarkably strong magneto-optic responses. This is particularly evident in van der Waals magnets, such as the antiferromagnet CrSBr, where excitons and magnons emerge from the same electronic orbitals. While previous work has primarily focused on uncovering the origin of the resulting exciton-magnon interactions, the influence of photonic effects has received comparatively little attention. Here, we use numerical simulations to disentangle exciton-magnon coupling from the excitonmediated magnon-photon interactions observed in optical experiments. By simulating realistic scenarios using parameters determined by experiments, we illustrate the strong dependence of these interactions on photonic interference and dispersion effects near excitonic resonances. Such effects shape the optical response to coherent magnons and make it intrinsically nonlinear in the magnon-induced exciton energy shift. Thermal magnons, which have a particularly pronounced impact on excitons, are found to even produce qualitatively different trends in optical signatures. Depending on weak or strong coupling of excitons and photons, the same exciton-magnon interaction can lead to a redshift of optical modes, a nearly vanishing response, or their blueshift. Finally, we demonstrate steps towards optimizing the multiparameter problem of efficient magnon-photon transduction using a machine-learning approach.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Intrinsic plasmon canalization in the biaxial van der Waals crystal MoOCl},

author = {F Aghashirinov and A Mancini and L Nan and G Venturi and B Frank and H Giessen and A Ambrosio},

url = {\<Go to ISI\>://WOS:001838478000001},

doi = {10.1038/s41565-026-02243-9},

issn = {1748-3387},

year  = {2026},

date = {2026-08-03},

journal = {Nature Nanotechnology},

abstract = {Anisotropic polaritons in low-symmetry crystals allow for subwavelength confinement and directional routing of light. The most extreme form of such anisotropy arises at the topological transition between elliptical and hyperbolic dispersion, where the isofrequency contours collapse into parallel lines and polaritons propagate in a diffractionless, beam-like fashion. This canalization regime has previously been accessed through twisted heterostructures or engineered metasurfaces. Here we show that intrinsic canalization can be achieved without any fabrication or structuring by exploiting the intrinsic elliptical-to-hyperbolic transition in the van der Waals crystal MoOCl2 at room temperature. Using near-field imaging, we directly visualize plasmon-polariton canalization emerging at the low-loss Drude crossing point along the [010] crystal axis. Owing to the moderate slope of the Drude permittivity, the resulting polaritons remain highly directional across a broad spectral window. This weak dispersion also enables robust thickness-dependent tuning, and we demonstrate, both experimentally and theoretically, that the canalization wavelength can be adjusted by more than 1 mu m simply by varying the flake thickness. This work brings canalized polariton propagation into the 4.5-6 mu m range, beyond the frequency limits of phonon-polariton platforms and overlapping with important molecular vibrations, opening new opportunities for mid-infrared nanophotonics and sensing.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Pretreatment-derived LiF/LiPO2F2 species enable robust high-voltage NCM811 cathode interphases},

author = {Y Y Xiao and X S Zhang and J P Li and X Zhao and L H Cao and S Amzil and T L Zheng and Y J Cheng and P M\"{u}ller-Buschbaum and M M Solomon and P Hall and Y G Xia},

url = {\<Go to ISI\>://WOS:001850366000001},

doi = {10.1016/j.ensm.2026.105448},

issn = {2405-8297},

year  = {2026},

date = {2026-08-01},

journal = {Energy Storage Materials},

volume = {90},

abstract = {Ni-rich NCM811 cathodes offer high energy density but undergo severe interfacial degradation above 4.5 V. Conventional electrolyte additives typically form protective cathode-electrolyte interphases (CEIs) through their in situ decomposition, often accompanied by continuous electrolyte consumption and heterogeneous interphase growth. Here, we develop a pretreatment-enabled carbonate electrolyte that preintroduces nano-LiF and LiPO2F2-related species as interphase-building components. Thermal pretreatment generates these inorganic species before cycling, while difluoroethylene carbonate (DFEC) is added to modulate Li+-PO2F2-association and stabilize LiF-containing species near Li-deficient NCM811 surfaces. NMR, spatially resolved Raman mapping, theoretical calculations, DRT analysis, depth-profiled XPS, and post-cycling characterizations collectively show that this strategy suppresses excessive carbonate-solvent participation and promotes a stratified LiF/ LixPOyFz-enriched CEI. The resulting interphase lowers interfacial resistance, facilitates Li+ transport, and mitigates surface reconstruction and microcracking. Consequently, a 1 Ah NCM811||graphite pouch cell retains 87.8% of its capacity after 1000 cycles at 1 C with an upper cut-off voltage of 4.6 V. This work provides a practical route to direct high-voltage CEI chemistry through pretreatment-derived inorganic species and DFEC-mediated interfacial regulation.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Light-Imprinted Chirality in Nanomaterials: From Principles to Applications},

author = {X R Jin and E Cort\'{e}s and A O Govorov and T Ding},

url = {\<Go to ISI\>://WOS:001835858700001},

doi = {10.1002/advs.202524331},

year  = {2026},

date = {2026-07-30},

journal = {Advanced Science},

abstract = {Light-induced chirality represents a transformative paradigm for fabricating chiral nanostructures, offering unique advantages over traditional approaches including chemical synthesis, self-assembly, and lithography. This review provides a comprehensive framework encompassing light-based strategies for imprinting and tuning chirality in nanomaterials, which includes laser direct writing, optical manipulation, CPL-induced symmetry breaking with the assistance of surface plasmons, optical vortex structuring, and momentum transfer. We critically compare different optical approaches, providing clear selection guidelines based on resolution, scalability, material compatibility, and equipment requirements. We also examine dynamic light-modulated chirality for switchable and reconfigurable structures, and highlight their emerging applications in biomedicine, sensing, polarization optics, and chiral displays. Finally, we conclude this review with current challenges and future directions. By establishing light-induced chirality as the most promising route for scalable chiral nanofabrication, this review guides researchers in harnessing light to create next-generation functional materials.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Single-photon detection in few-layer NbSe superconducting nanowires},

author = {L Zugliani and A Palermo and B Scaparra and A Patra and F Wietschorke and P Metuh and A Paralikis and D De Fazio and C Kastl and R Flaschmann and B Munkhbat and K M\"{u}ller and J J Finley and M Barbone},

url = {\<Go to ISI\>://WOS:001836575800006},

doi = {10.1038/s41467-026-75646-w},

year  = {2026},

date = {2026-07-29},

journal = {Nature Communications},

volume = {17},

number = {1},

abstract = {Superconducting Nanowire Single-Photon Detectors (SNSPDs) are key building blocks for photonic quantum technologies due to their ability to detect single photons with ultra-high efficiency, low dark counts and fast temporal resolution. Superconducting materials exhibiting high uniformity, large absorption cross-section and atomic-scale thickness are desirable to extend single-photon detection from the near-infrared up to the terahertz regime, where existing material choices are especially constrained. Substrate independence would further open the way to integrating detectors onto functional materials and heterostructures, enhancing performance and enabling proximal readout of a wide range of individual excitations. Here, we pattern the prototypical two-dimensional superconductor niobium diselenide (NbSe2) into few-layer nanowires less than 100 nm wide and demonstrate single-photon detection at 780 nm and 1550 nm. At the same time, the dark-count rate remains below 1 Hz up to the switching current and we achieve a timing jitter below 50 ps. We estimate via a diffusive hot-spot model that materials and geometric parameters would allow a theoretical cut-off wavelength in the millimetre range, assuming state-of-the-art device parameters. Our results open up routes toward quantum-limited detectors integrated into quantum-photonic circuits and quantum devices, with the potential for novel detection capabilities and unprecedented energy sensitivity.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {EnhancedC-F Activation and Proton Supply overAlO-Embedded RuO Clusters Boost Perfluorocarbon Hydrolysis},

author = {L P Han and J Gao and C Q Zhang and H T Huang and Y Wang and W Q Qu and J W Hou and G Berlier and E Cortes and D S Zhang},

url = {\<Go to ISI\>://WOS:001824431000001},

doi = {10.1021/jacs.6c08359},

issn = {0002-7863},

year  = {2026},

date = {2026-07-29},

journal = {Journal of the American Chemical Society},

volume = {148},

number = {29},

pages = {31292-31301},

abstract = {The catalytic hydrolysis of per- and polyfluoroalkyl substances (PFAS) holds significant potential for environmental remediation; however, the chemically inert C-F bond poses substantial challenges for achieving efficient low-temperature activity. Herein, we demonstrate that RuO x clusters embedded in mesoporous Al2O3 nanosheet (RuO x /Al2O3) catalysts achieved the complete decomposition of CF4, one of the most chemically inert PFAS, at an unprecedented low temperature of 450 degrees C, outperforming all catalysts reported to date. The extraordinary CF4 hydrolysis performance is attributed to synergistically enhanced C-F bond activation and proton supply. Specifically, the strong electronic interaction between RuO x clusters and Al2O3 promotes the CF4 adsorption and C-F cleavage on Al sites in RuO x /Al2O3. Furthermore, the Ru sites in RuO x /Al2O3 promote H2O dissociation into *H and *OH, which enables the continuous regeneration of adjacent Al-OH groups and supplies sufficient protons for defluorination in the CF4 hydrolysis reaction. This study paves the way for designing and developing highly efficient catalysts for low-temperature catalytic hydrolysis of PFAS.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Strain Relaxation in Layered Lateral Heterostructures: Insights From Molecular Simulations and Unconventional HAADF-STEM Imaging},

author = {N Goyal and K Jagadish and Z Herdegen and T Lorenzen and S Sturm and F H\"{o}lzl and S Kumar and M P Gururajan and K M\"{u}ller-Caspary and N Ravishankar},

url = {\<Go to ISI\>://WOS:001833860300001},

doi = {10.1002/smtd.202600013},

issn = {2366-9608},

year  = {2026},

date = {2026-07-28},

journal = {Small Methods},

volume = {10},

number = {16},

abstract = {A unique relaxation mechanism in wet-chemically synthesized Bi2Te3-Sb2Te3 lateral heterostructures is presented, combining insights from molecular statics/dynamics simulations with a novel characterization technique based on STEM imaging using a defocused probe. The molecular simulations indicate that these heterostructures undergo intrinsic structural relaxation due to lattice mismatch and elastic anisotropy, resulting in uniform bending into dome-shaped geometries with radii of curvature on the micron scale. While conventional bright-field TEM imaging experimentally shows symmetric bend contours due to uniform bending, we demonstrate that defocused HAADF-STEM produces unique contrast patterns sensitive to the sign of the probe defocus. This allows for the acquisition of crystallographic information (both magnitude and sign of curvature) in real space over large fields of view. The underlying physical mechanism is elucidated through scattering theory, focusing on the matching of the incident electron wave phase front with the local crystal lattice orientation and is supported by comprehensive dynamical multislice simulations of electron channeling maps. These findings are further validated by electron tomography and momentum-resolved 4D-STEM experiments. These insights are not only relevant for deciphering the local crystallographic properties of the Bi2Te3-Sb2Te3 system, but also establish a STEM-based approach to characterize crystal bending across different zone axes in 2D nanostructures. This methodology provides a robust, real-space alternative for analyzing intrinsic or strain-induced curvature over large fields of view using unconventional HAADF-STEM.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Coherent dynamics of the spin-boson model in the ultra-strong coupling regime},

author = {N Acharyya and M Richter and B P Fingerhut},

url = {\<Go to ISI\>://WOS:001833709500001},

doi = {10.1063/5.0331885},

issn = {0021-9606},

year  = {2026},

date = {2026-07-28},

journal = {Journal of Chemical Physics},

volume = {165},

number = {4},

abstract = {Quantum mechanics describes the unitary time evolution of closed systems. In practice, every quantum system interacts with the environment, leading to an irreversible loss of coherence. The spin-boson model (SBM) is central to the understanding of the fundamental process of decoherence of a two-state quantum system interacting with a bosonic heat bath, but the nature of transient dynamics in the presence of hybrid diagonal and off-diagonal system-bath interactions remains much less explored. Here, we investigate how the hybrid system-bath interactions of an Ohmic environment induce localization in the bias-free SBM. For strong coupling to the environment, localization is strongly affected by a dynamically generated bias via the renormalization of the tunneling amplitude. We find that counteracting effects of Hamiltonian parameters on non-exponential short-time dynamics and long-time population equilibration can lead to a separation of timescales and transient quantum coherent dynamics that can persist even for ultra-strong system-bath interaction. The findings offer novel insight into the equilibration behavior of quantum devices operating in the ultra-strong coupling regime.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {CO2-Induced Reverse Lattice Oxygen Spillover on Pt/CeO2 Enables Sulfur-Resistant Dry Reforming of Methane},

author = {J Liu and J Deng and J J Zheng and M B Mousavi and C N Sun and J Li and X Chen and Y J Shen and H T Huang and M Xie and E Cort\'{e}s and D S Zhang},

url = {\<Go to ISI\>://WOS:001779745500001},

doi = {10.1002/anie.1664469},

issn = {1433-7851},

year  = {2026},

date = {2026-07-27},

journal = {Angewandte Chemie-International Edition},

volume = {65},

number = {31},

abstract = {Overcoming sulfur poisoning in dry reforming of methane (DRM), which is a critical process for biogas upgrading, is particularly challenging. In this study, we illustrate that a reverse lattice oxygen spillover (RLOS) from CeO2 to Pt on the Pt-O-Ce interface, induced by CO2, can oxidize S into SO2, aiding in the removal of S deposits. A low oxygen migration barrier at the Pt-O-Ce interface and Pt's high activity for oxidizing sulfur to SO2 make Pt/CeO2 uniquely effective at self-recovering after H2S poisoning. Furthermore, the atomically dispersed Pt/CeO2 catalyst undergoes reaction driven adaptive restructuring, which amplifies the RLOS effect and enables dynamic S deposition and removal. As a result, the catalysts maintain constant DRM activity for 100 h, even in the presence of H2S. This discovery paves the way for designing catalysts that resist sulfur poisoning in H2S-containing streams.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Single-atom-engineered perovskite enables near-theoretical-rate hydroxyl radical electrogeneration},

author = {Y B Wang and C Y Xie and R Q Zhao and Z Y Su and H M Li and H Zhang and B Li and C H Zhou and Y Y Chen and Z Y Du and J H Li and Y F Bu and J Bai and B X Zhou and E Cort\'{e}s and M Liu},

url = {\<Go to ISI\>://WOS:001859298400007},

doi = {10.1038/s41467-026-75926-5},

year  = {2026},

date = {2026-07-24},

journal = {Nature Communications},

volume = {17},

number = {1},

abstract = {Electrochemical advanced oxidation that directly activates O2 through the oxygen reduction reaction (ORR) to generate hydroxyl radicals (center dot OH) offers a sustainable strategy for degrading persistent organic pollutants. However, prevailing approaches typically rely on a stepwise process involving the 2e(-) ORR to produce H2O2 followed by 1e(-) activation. High barriers associated with intermediate desorption and inter-site transfer consequently limit the center dot OH yield. Here, we construct a single-active-site architecture in the perovskite oxide Pr1.0Sr1.0Fe0.5Zn0.25Mo0.25O4-delta (PSFZM) that enables a direct three-electron ORR pathway for efficient center dot OH generation. The Zn delta(+) single active center selectively stabilizes *OOH and *H2O2 through weak orbital interactions, while an adjacent Mo atom polarizes the O atoms of adsorbed H2O2, promoting cleavage of the peroxide bond at the active site. This strategy avoids intermediate desorption and migration, enabling continuous proton-coupled electron transfer. The catalyst achieves a center dot OH production rate of 821 mu mol h(-)1 and an O2 utilization of 37.7%, metrics competitive with previously reported systems. In a membrane-free flow cell that uses gaseous O2 directly, the center dot OH generation efficiency reaches 64.7%. By combining atomic-level catalyst design with reactor engineering, this work establishes a scalable platform for sustainable wastewater treatment.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Carbon-Confined Fe3C/Fe3N Janus Interfaces for Selective Nitric Oxide-to-Ammonia Electroreduction},

author = {J L Song and Z Q Wei and H T Huang and L P Han and B Y Huang and E Pensa and S F Y Li and E Hamed and F M Fung and E Cort\'{e}s and D S Zhang},

url = {\<Go to ISI\>://WOS:001829101900001},

doi = {10.1002/anie.1030679},

issn = {1433-7851},

year  = {2026},

date = {2026-07-24},

journal = {Angewandte Chemie-International Edition},

abstract = {Electrocatalytic nitric oxide reduction to ammonia couples pollutant valorization with sustainable nitrogen conversion, but high activity and selectivity require concurrent control of NO transport, NO activation, and hydrogenation at the gas-liquid-solid interface. Here, we report a self-supported, noble-metal-free Fe3C/Fe3N@C catalyst, composed of earth-abundant Fe, C, and N, featuring defect-rich Fe3C/Fe3N Janus nanostructures confined within graphitic carbon. The catalyst achieves an NH3 yield rate of 468.3 \& micro;mol h-1 cm-2 with a Faradaic efficiency of 94.2% at -0.6 V versus RHE, placing it among the most efficient reported NORR electrocatalysts. Mechanistic studies reveal that the graphitic carbon shell facilitates NO diffusion by alleviating the steric and dynamic constraints imposed by the hydrogen-bonded water network. At the Janus interface, Fe3C sites preferentially adsorb and activate NO, whereas nitrogen-vacancy-rich Fe3N sites promote H2O dissociation to supply reactive *H for subsequent hydrogenation. This spatial coupling of mass-transfer promotion, NO activation, and interfacial *H generation enables efficient and selective NO-to-NH3 electroreduction. These findings establish carbon-confined, earth-abundant carbide/nitride Janus interfaces as a promising design principle for high-performance NORR catalysts.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Multimodal Dynamicsin Ionic Liquids Revealed by Molecular-Dynamics-GuidedMultinuclear NMR Relaxation Analysis},

author = {Y A Li and F Teleanu and F Civaia and C Scheurer and A Jerschow},

url = {\<Go to ISI\>://WOS:001819639400001},

doi = {10.1021/acs.jpclett.6c02150},

issn = {1948-7185},

year  = {2026},

date = {2026-07-23},

journal = {Journal of Physical Chemistry Letters},

volume = {17},

number = {29},

pages = {8342-8349},

abstract = {Ionic liquids are complex liquids characterized by high viscosity and high polarity. Their dynamics are of interest due to their use in many fields that require unconventional solvent environments. Here, we develop an MD-based forward-prediction framework to calculate NMR relaxation rates in the ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate, [bmim][BF4], and investigate their temperature and magnetic-field dependence. We show that the combination of intra- and intermolecular dipolar couplings and chemical shift anisotropy interactions allows accounting for the experimentally observed nuclear spin lifetimes when considering multimodal relaxation processes. A regularized inverse Laplace transformation of MD-derived interactions reveals generally bimodal motional processes active in both inter- and intramolecular effects. The presence of two main motional processes may be somewhat surprising for intramolecular effects, especially in the symmetric [BF4](-) unit, but can be attributed to the restricted motion due to the local environment. We also highlight that the Bloembergen-Purcell-Pound (BPP) approach that is often used to characterize average motional correlation times is not reliable in most situations encountered with realistic systems. Consequently, we argue that achieving quantitative agreement between predicted and measured NMR relaxation rates offers a more robust route to extracting structural and dynamical information from complex liquids.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Why more junctions do not yet deliver: interconnection challenges in perovskite multijunction solar cells},

author = {R Hooijer and S Kim and D Im and C Chen and D W Zhao and S Lee and E Aydin},

url = {\<Go to ISI\>://WOS:001804371600001},

doi = {10.1039/d6ee01631f},

issn = {1754-5692},

year  = {2026},

date = {2026-07-21},

journal = {Energy \& Environmental Science},

volume = {19},

number = {14},

pages = {4582-4596},

abstract = {Single-junction photovoltaic technologies are approaching their practical efficiency limits. Perovskite-based multijunction solar cells offer a path beyond these limits through reduced thermalization losses and improved spectral utilization. Although tandem architectures are not new to the photovoltaic community, perovskite-based tandems have, for the first time, opened a realistic path toward gigawatt-scale deployment of this technology. Over the past decade, remarkable progress has been achieved, and the technology is now moving steadily toward industrial scaling. Beyond complementing crystalline silicon, perovskites constitute a versatile tandem device component that can be implemented in fully perovskite-based architectures, fabricated on diverse substrates, and even extended to triple or quadruple-junction configurations. However, this advancement introduces new technological challenges, particularly in the interconnection of perovskite sub-cells. Achieving reliable electrical coupling while maintaining interfacial and structural integrity is challenging, as high-efficiency devices often involve multiple solution-processed layers, where similar solvents used in adjacent sub-cells can cause interlayer dissolution or chemical degradation. Furthermore, film imperfections such as cracks, pinholes, and delamination - often driven by mechanical stress and accumulated strain - emerge frequently during fabrication and scale-up and require careful management. This perspective examines these interconnection-related challenges and charts future directions in perovskite-based multijunction solar cells beyond the general electronic view of recombination junctions.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {High-performance solution-processed TIIG-based polymer photodetector with detectivity across scalable SWIR applications},

author = {R Holfeuer and M Comi and S Schr\"{o}der and M Bouraoui and J Hofmann and R Hooijer and E Aydin and A Hartschuh and M Al-Hashimi and A Yousefiamin and T Ameri},

url = {\<Go to ISI\>://WOS:001783293100001},

doi = {10.1039/d5mh02371h},

issn = {2051-6347},

year  = {2026},

date = {2026-07-20},

journal = {Materials Horizons},

volume = {13},

number = {14},

pages = {7250-7265},

abstract = {Developing cost-efficient, flexible, and Restriction of Hazardous Substances (RoHS)-compliant short-wave infrared (SWIR) photodetectors compatible with roll-to-roll processing remains a significant challenge. Here we present a simplified organic 'metal-semiconductor-metal' (MSM) photodetector featuring a single solution-processed bulk heterojunction of a newly synthesized thienoisoindigo-based ultralow-bandgap polymer, TIIG-Se-DFT, blended with the nonfullerene acceptor (NFA) Y6. The TIIG-Se-DFT polymer, incorporating selenophene and fluorinated thiophene units, combines a narrow bandgap of 0.96 eV with strong absorption across 700-1600 nm and forms films with local molecular order, enabling broadband light harvesting without multistep layer stacking. Device simplicity is achieved using an interdigitated Au electrode and a single solution-processed active layer, minimizing vacuum deposition and eliminating interlayer damage due to solvent exposure. The resulting photodetector reaches a specific detectivity (D*) of approximate to 2 \& times; 10(11) Jones at 1150 nm, retains \>0.13 \& times; 10(10) Jones at the eye-safe 1550 nm telecom band, and delivers 86/36 \& micro;s rise/fall times at 1 V-bias. Dark current is held to 4.6 \& times; 10(-8) A cm(-2), and encapsulated devices preserve \>95% responsivity after 800 hours of ambient aging. The simplified, high-sensitivity processing advances TIIG-Se-DFT:Y6 SWIR photodetectors toward industrial scale suitable for wearables, light detection and ranging (LiDAR), and optical communications.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Ambient-Air UltrasonicSpray Coating at Nanoscalefor High-Performance Conducting Polymer/Fullerene-Based Organic SolarCells},

author = {S X Xiong and S Schraad and Y F Zhai and M Betker and B Sochor and S K Vayalil and L D Soderberg and P Muller-Buschbaum and S V Roth},

url = {\<Go to ISI\>://WOS:001812553700001},

doi = {10.1021/acsanm.6c01188},

year  = {2026},

date = {2026-07-17},

journal = {Acs Applied Nano Materials},

volume = {9},

number = {28},

pages = {13271-13280},

abstract = {Achieving high-performance organic solar cells (OSCs) under ambient-air conditions remains challenging, as the film morphology of the active layer is highly sensitive to environmental variations. Spray deposition proved to be a promising and ambient-environment-compatible solution-processing fabrication method, enabling precise control over the active layer morphology by facile tuning of spray process parameters. In this work, we use ultrasonic spray coating for in-air deposition of the active layer in OSCs, eliminating the need for inert gas environments during solar cell fabrication while maintaining controlled film formation. To provide ambient-air stability and a clear benchmark for nanoscale morphology control, this work revisits the well-established fullerene model system, PTB7-Th:PC71BM, and uses it as a representative active layer. Grazing incidence wide-angle X-ray scattering and surface morphology analysis reveal that the flow rate and nozzle movement speed of ultrasonic spray deposition can be effectively exploited to facilitate molecular packing and phase separation that lead to the formation of an ideal nanoscale morphology of the active layer under ambient air, thereby optimizing charge transport. As a result, the in-air spray-coated fullerene OSCs fabricated with the optimized spray-coating parameters achieved a maximum power conversion efficiency of 9.07%, which is comparable to that of spin-coated fullerene devices under similar ambient-air processing conditions. This study establishes an experimentally validated processing guideline and a feasible route for fabricating reasonably efficient OSCs under practical ambient-air conditions, which is expected to be potentially extendable to more advanced non-fullerene and other cutting-edge systems in the future.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Solvent Additive-Assisted Kinetic Stabilization of Nonfullerene Bulk Heterojunction Active Layers under Thermal Stress},

author = {T Y Huang and A P Le Brun and B Sochor and Y Bulut and P M\"{u}ller-Buschbaum and S V Roth},

url = {\<Go to ISI\>://WOS:001792670600001},

doi = {10.1021/acsaem.6c00922},

issn = {2574-0962},

year  = {2026},

date = {2026-07-13},

journal = {Acs Applied Energy Materials},

abstract = {The thermal stability of bulk heterojunction (BHJ) active layers critically determines the lifetime of nonfullerene organic solar cells. In this work, we track the thermally driven kinetic evolution of PffBT4T-2OD:ITIC BHJs over a range of annealing temperatures and times. Neat PffBT4T-2OD films remain stable under the investigated conditions, whereas neat ITIC films develop progressively diffuse interfaces and show the onset of structural evolution upon annealing at 120 degrees C. In pristine PffBT4T-2OD:ITIC BHJs, annealing above 120 degrees C triggers vertical phase stratification, forming an ITIC-enriched layer near the air interface and a PffBT4T-2OD-rich region adjacent to the substrate. Time-resolved neutron reflectometry provides quantitative kinetic evidence that incorporating a small amount of a solvent additive (1,8-diiodooctane, DIO, 0.25 vol %) delays and mitigates thermally induced vertical redistribution. Specifically, DIO incorporation extends the extrapolated onset time for redistribution by similar to 2.3-fold, accompanied by an similar to 38% reduction in the redistribution rate. Complementary X-ray scattering further shows that the development of ITIC crystalline ordering is delayed in the presence of DIO. These results demonstrate an additive-assisted kinetic stabilization pathway in nonfullerene BHJs, where improved donor-acceptor intermixing slows early-stage acceptor ordering and mitigates progression toward larger-scale phase separation under thermal stress.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Transparent Graphene Interfaces for Capacitive Recordings from hiPSC-Derived Cardiomyocyte Monolayers: A Proof-of-Concept Study},

author = {M Meincke and A Bazzone and S Stoelzle-Feix and S Holzhauser and M Barthmes and L Richter and I Kaminska and M George and P Tinnefeld and N Fertig},

url = {\<Go to ISI\>://WOS:001833356900001},

doi = {10.3390/s26144383},

year  = {2026},

date = {2026-07-10},

journal = {Sensors},

volume = {26},

number = {14},

abstract = {Transparent conductive interfaces can enable optical pre-assessment of cardiac cell layers while remaining compatible with label-free electrophysiological recording. Here, we evaluated the integration of a monolayer graphene electrode into a capacitive recording platform for the analysis of human-induced pluripotent stem cell-derived cardiomyocyte (hiPSC-CM) monolayers. hiPSC-CMs cultured on graphene sensors formed confluent, synchronously beating monolayers that could be assessed by light microscopy prior to recording. Capacitive current transients could be recorded from spontaneously beating hiPSC-CM monolayers, supporting the compatibility of transparent graphene interfaces with capacitive recordings from electrically active cardiac cell layers. Signal amplitude and waveform morphology varied across sensors, indicating that recording performance depended strongly on the cell-sensor interface, including cell attachment, monolayer integrity, and capacitive coupling at the sensing surface. A descriptive perturbation sequence using the hERG blocker dofetilide revealed changes in waveform morphology and beat timing across sequential recordings. However, the data do not allow firm attribution to a compound-specific effect and are not intended for quantitative pharmacological characterization. Overall, the results support graphene as a transparent conductive cell-sensor interface, which should be interpreted in the context of cell-substrate interactions at the sensing surface. Combining optical pre-assessment with functional capacitive readout may support integrated workflows. Further studies will be needed to differentiate material-, interface-, and recording-related contributions and to establish reliable conditions for reproducible and scalable recordings.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Photosystem I-independent oxygenic photosynthesis in cyanobacteria},

author = {M Ludwiczak and M Dann and T Figueroa-Gonzalez and E M Abdel-Salam and W Y Chen and S Schwenkert and M Lehmann and M Zhivkovikj and M Noureddine and M Linhartov\'{a} and S Gupta and J Komenda and A Guljamov and S Viola and F Liu and D Leister},

url = {\<Go to ISI\>://WOS:001817448600005},

doi = {10.1038/s41467-026-74903-2},

year  = {2026},

date = {2026-07-10},

journal = {Nature Communications},

volume = {17},

number = {1},

abstract = {Oxygenic photosynthesis generates ATP and NADPH via linear electron flow from water to NADP+, a process thought to require photosystem I (PSI) for reductant formation. Here we demonstrate that oxygenic photosynthesis can operate without PSI in the cyanobacterium Synechocystis sp. PCC 6803. Using genetic engineering and adaptive laboratory evolution, we obtained PSI-deficient lineages capable of photoautotrophic growth, inorganic carbon fixation, and light-driven oxygen evolution. PSI-independent photoautotrophy arose from co-mutations in at least two proteins, including the translation elongation factor G (FusA), and required a functional NDH-1 complex. We propose that the light-driven electron transport in the evolved strains is reorganised in two branches: one involving terminal oxidases to generate proton motive force, and a second in which reverse NDH-1 activity exploits this gradient to produce reductant. These findings uncover unexpected plasticity in the thylakoid electron transport network and prompt a reassessment of the canonical requirement for PSI in oxygenic photosynthesis.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Solvent-Controlled Densification and Ligand Redistribution in CsPbBr3 Nanocrystal Thin Films Revealed by Quantitative XPS and Spectroscopic Ellipsometry},

author = {U Leo and C Heimig and P V Vicente and M A Gruber and M Heinemann and N A Henke and A Singldinger and F Allegretti and J V Barth and A S Urban},

url = {\<Go to ISI\>://WOS:001808010100001},

doi = {10.1021/acsanm.6c01064},

year  = {2026},

date = {2026-07-10},

journal = {Acs Applied Nano Materials},

volume = {9},

number = {27},

pages = {12734-12740},

abstract = {Understanding and controlling nanocrystal film formation is essential for achieving uniform and electronically well-defined perovskite thin films for optoelectronic device applications. Here, we quantitatively examine how solvent volatility affects densification, porosity, and ligand redistribution in spin-coated CsPbBr3 nanocrystal films. Using time-resolved spectroscopic ellipsometry and X-ray photoelectron spectroscopy (XPS), we track the evolution of perovskite cores, ligands, and solvents during drying. Octane-cast films densify gradually, showing similar to 25% thickness reduction and increased refractive index, while hexane-cast films retain porosity due to rapid evaporation. XPS reveals preferential oleylamine retention, a ligand-rich surface, and accumulation of PbBr2 and carbon species at the outermost interface.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Biopolymer-Templated Titania Film Formation for Nanostructured Coatings Revealed by Machine Learning-Supported Time-Resolved Analysis},

author = {J E Heger and Y F Zhai and S C Dan and M Schwartzkopf and I Cernev and C J Gavillet and N Li and T Chavez and A Hexemer and S V Roth and P Muller-Buschbaum},

url = {\<Go to ISI\>://WOS:001805556200001},

doi = {10.1021/acsanm.6c01622},

year  = {2026},

date = {2026-07-10},

journal = {Acs Applied Nano Materials},

volume = {9},

number = {27},

pages = {12970-12979},

abstract = {This study presents a machine learning approach to derive the film formation of biopolymer-templated titania nanostructures during spray deposition, in combination with in situ grazing-incidence small-angle X-ray scattering (GISAXS). A neural network trained on synthetic GISAXS data directly predicts domain-size distributions from experimental two-dimensional scattering patterns, capturing the full kinetics of nanostructure evolution with high temporal resolution. The predictions reveal hierarchical size distributions and periodic growth features, consistent with layer-by-layer spray deposition and validated by complementary scanning electron microscopy (SEM) imaging. Quantitative comparison with conventional parametric GISAXS fits shows good qualitative agreement, with systematic differences explained by domain-shape assumptions and resolved by applying a geometric scaling factor. Simulated SEM-like surfaces derived from neural network outputs reproduce the porous, foam-like nanoscale morphology observed experimentally, reinforcing the method's credibility. This integrated approach enables real-time, nondestructive, statistically averaged monitoring of bulk nanostructure development in functional coatings, offering a scalable methodology to accelerate the characterization and process control of sustainably manufactured nanostructured titania films for energy-related applications such as photocatalysis and photovoltaics.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}