Sebastian Wood

Roadmap on UV-C photodetectors: materials, applications and industry perspectives

Fabien Massabuau, Drew Riley, Paul Meredith, Tilman Weiss et autres

UV-C photodetectors are poised to play an increasingly important role in future photonic technologies, driven by the rapid emergence of UV-C light sources and new wide bandgap semiconductors. These advances are enabling new levels of spectral selectivity, radiation hardness, sensitivity, and device …

Roadmap on UV-C photodetectors: materials, applications and industry perspectives

Fabien Massabuau, Drew Riley, Paul Meredith, Tilman Weiss et autres

UV-C photodetectors are poised to play an increasingly important role in future photonic technologies, driven by the rapid emergence of UV-C light sources and new wide bandgap semiconductors. These advances are enabling new levels of spectral selectivity, radiation hardness, sensitivity, and device …

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Periodicity as a Universal Measurand Enabling Traceable Nanoscale Dimensional Metrology

Federico Ferrarese Lupi, Irdi Murataj, Korinna Altmann, Büşra Gamze Arslan et autres

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Electron-beam induced modulation of surface conduction in hydrogen-terminated diamond

Sebastian Wood, Evgheni Strelcov, Junyeob Song, Albert Davydov et autres

Hydrogen-terminated diamond is a promising platform for diamond-based high-power-frequency electronics and radiation-hardened semiconductor devices exhibiting controllable electrical conduction through an accumulated sub-surface 2D hole-gas layer. The diamond conductivity is highly sensitive to local surface conditions, offering new opportunities for device engineering, quantum …

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Electron-beam induced modulation of surface conduction in hydrogen-terminated diamond

Sebastian Wood, Evgheni Strelcov, Junyeob Song, Albert V. Davydov et autres

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A novel carborane-based electron transport material for high-performance perovskite/silicon tandem solar cells

Lea Zimmermann, Julius Petrulevicius, Dorothee Menzel, Wander Max Bernardes de Araújo et autres

Carborane-based electron transport material enables high-efficiency, fullerene-free monolithic perovskite/silicon tandem solar cell.

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OlmoEarth: Stable Latent Image Modeling for Multimodal Earth Observation

Henry Herzog, Favyen Bastani, Ya‐Wen Zhang, Gabriel Tseng et autres

Earth observation data presents a unique challenge: it is spatial like images, sequential like video or text, and highly multimodal. We present OlmoEarth: a multimodal, spatio-temporal foundation model that employs a novel self-supervised learning formulation, masking strategy, and loss all designed for …

Measurement of Lateral Resolution in Confocal Raman Spectroscopy Using Indium Arsenide Nanowires

Sebastian Wood, Keith R. Paton, Ruth Rawcliffe, Tomas Peach et autres

ABSTRACT Lateral resolution is a key figure of merit for spectroscopy across all applications. Confocal Raman spectroscopy is able to provide chemical and structural information with submicrometre resolution, resulting in widespread use across multiple disciplines of science and technology. However, the lack …

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Improved stability and electronic homogeneity in perovskite solar cells via a nanoengineered buried oxide interlayer

W. Hashini K. Perera, Tony J. Woodgate, Dong Kuk Kim, Rachel C. Kilbride et autres

Alumina nanoparticles enhance perovskite surface electronic homogeneity, bulk electrical conduction, and device stability when used as a surface modifier on hydrophobic self-assembled monolayers, outperforming widely used polyelectrolytes.

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Curvature-enhanced localised emission from dark states in wrinkled monolayer WSe 2 at room temperature

Sebastian Wood, Filipe Richheimer, Tom Vincent, Vivian Tong et autres

Localised emission from defect states in monolayer transition metal dichalcogenides is of great interest for optoelectronic and quantum device applications. Recent progress towards high temperature localised emission relies on the application of strain to induce highly confined excitonic states. Here we propose …

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Development of time-resolved photoluminescence microscopy of semiconductor materials and devices using a compressed sensing approach

Aidas Baltušis, George Koutsourakis, Sebastian Wood, Stephen John Sweeney

Abstract Charge carrier lifetime is a key property of semiconductor materials for photonic applications. One of the most established methods for measuring lifetimes is time-resolved photoluminescence (TRPL), which is typically performed as a single-point measurement. In this paper, we demonstrate a new …

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Quantification of titanium dioxide (TiO2) anatase and rutile polymorphs in binary mixtures by Raman spectroscopy: an interlaboratory comparison

Alessio Sacco, Luisa Mandrile, Li‐Lin Tay, Nobuyasu Itoh et autres

Abstract This article presents an interlaboratory comparison (ILC) on Raman spectroscopy as a technique for relative quantification of the two most common polymorphs of titanium dioxide (TiO2)—anatase and rutile—in binary mixtures. Some standard methods are currently employed internationally for the determination of …

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