Publications de Alan Richard Bowman

Decoupling Optical and Thermal Dynamics in Dielectric Metasurfaces for Self-Encoded Photonic Control

Giulia Tagliabue, Elif Nur Dayi, Omer Can Karaman, Alan Richard Bowman

Thermo-optical nonlinearities (TONL) in metasurfaces enable dynamic control of optical properties—such as transmitted power, phase, and polarization—through external stimuli like laser irradiation or temperature. Due to the inherently slow thermal dynamics ...

2025

Dataset to accompany publication "Distinguishing Inner and Outer-Sphere Hot Electron Transfer in Au/p-GaN Photocathodes"

Giulia Tagliabue, Fateme Kiani Shahvandi, Milad Sabzehparvar, Alan Richard Bowman

This dataset accompanies the publication "Distinguishing Inner and Outer-Sphere Hot Electron Transfer in Au/p-GaN Photocathodes" published in Nano Letters. The data can be used to reproduce the original plots in figures 2-4 in the main text and all origina ...

Zenodo2025

Large-area Monocrystalline Copper Microflake Synthesis

Giulia Tagliabue, Elif Nur Dayi, Omer Can Karaman, Alan Richard Bowman

Copper is one of the most extensively studied materials for energy conversion and catalytic systems, with a wide range of other applications, from nanophotonics to biotechnology. However, existing synthesis methods are limited with many undesirable byprodu ...

AMER CHEMICAL SOC2025

Dataset to accompany publication "Re-defining non-tracking solar cell efficiency limits with directional spectral filters"

Giulia Tagliabue, Alan Richard Bowman

This dataset accompanies the publication "Re-defining non-tracking solar cell efficiency limits with directional spectral filters" published in ACS Photonics (10.1021/acsphotonics.4c02181). The data can be used to reproduce figures 2-4 in the main text and ...

Zenodo2025

Re-defining Non-tracking Solar Cell Efficiency Limits with Directional Spectral Filters

Giulia Tagliabue, Alan Richard Bowman

Optical filters that respond to the wavelength and direction of incident light can be used to increase the efficiency of tracking solar cells. However, as tracking solar cells are more expensive to install and maintain, it is likely that nontracking solar ...

American Chemical Society (ACS)2025

Best practices in measuring absorption at the macro- and microscale

Giulia Tagliabue, Fateme Kiani Shahvandi, Jiaming Ma, Alan Richard Bowman

The fraction of light absorbed in a material is a key parameter for a wide range of optoelectronic and energy devices, including solar cells, light emitting diodes, and photo(electro)chemical devices. It can reveal detailed performance information and esta ...

2024

Spatially resolved photoluminescence analysis of the role of Se in CdSexTe1−x thin films

Giulia Tagliabue, Alan Richard Bowman

Evidence from cross-sectional electron microscopy has previously shown that Se passivates defects in CdSexTe1−x solar cells, and that this is the reason for better lifetimes and voltages in these devices. Here, we utilise spatially resolved photoluminescen ...

Nature Research2024

Dataset to accompany publication "Best practices in measuring absorption at the macro- and microscale"

Giulia Tagliabue, Fateme Kiani Shahvandi, Jiaming Ma, Alan Richard Bowman

This dataset accompanies the publication "Best practices in measuring absorption at the macro- and microscale" published in APL Photonics. The data can be used to reproduce original plots in figures 1-4 in the main text and all original plots in the suppor ...

Zenodo2024

Distinguishing Inner and Outer-Sphere Hot Electron Transfer in Au/p-GaN Photocathodes

Giulia Tagliabue, Fateme Kiani Shahvandi, Milad Sabzehparvar, Alan Richard Bowman

Exploring nonequilibrium hot carriers from plasmonic metal nanostructures is a dynamic field in optoelectronics, with applications including photochemical reactions for solar fuel generation. The hot carrier injection mechanism and the reaction rate are hi ...

American Chemical Society (ACS)2024

Dataset to accompany publication "Quantum-mechanical effects in photoluminescence from thin crystalline gold films"

Giulia Tagliabue, Fateme Kiani Shahvandi, Theodoros Tsoulos, Alan Richard Bowman

This dataset accompanies the publication "Quantum-mechanical effects in photoluminescence from thin crystalline gold films" published in Light: Science & Applications (https://doi.org/10.1038/s41377-024-01408-2). The data can be used to reproduce plots 1-4 ...

Zenodo2024

Quantum-mechanical effects in photoluminescence from thin crystalline gold films

Giulia Tagliabue, Fateme Kiani Shahvandi, Theodoros Tsoulos, Alan Richard Bowman

Luminescence constitutes a unique source of insight into hot carrier processes in metals, including those in plasmonic nanostructures used for sensing and energy applications. However, being weak in nature, metal luminescence remains poorly understood, its ...

2024

Transport and Interfacial Injection of d-Band Hot Holes Control Plasmonic Chemistry

Giulia Tagliabue, Fateme Kiani Shahvandi, Omer Can Karaman, Milad Sabzehparvar, Alan Richard Bowman

Harnessing nonequilibrium hot carriers from plasmonic metal nanostructures constitutes a vibrant research field with the potential to control photochemical reactions, particularly for solar fuel generation. However, a comprehensive understanding of the int ...

AMER CHEMICAL SOC2023

Charged defect healing by N, N′-di (naphthalene-1-yl)-N, N′ diphenyl benzidine at the interface of CuInS2 nanoparticle hole transporting materials in carbon-based halide perovskite solar cells

Mahdi Mohammadi, Alan Richard Bowman

Recently, inorganic nanoparticles have been studied as hole transporting materials (HTM) in perovskite solar cells (PSCs). Inorganic HTMs are believed to provide better stability compared to conventional organic HTMs, such as spiro-OMeTAD. One of the chall ...

Elsevier2023

Multimodal Microscale Imaging of Textured Perovskite-Silicon Tandem Solar Cells

Christophe Ballif, Quentin Thomas Jeangros, Jérémie Werner, Florent Sahli, Chien-Jen Yang, Fan Fu, Alan Richard Bowman

Halide perovskite/crystalline silicon (c-Si) tandem solar cells promise power conversion efficiencies beyond the limits of single-junction cells. However, the local light-matter interactions of the perovskite material embedded in this pyramidal multijuncti ...

AMER CHEMICAL SOC2021