Aron Walsh

3 weeks ago | zenodo.org | Anthony Onwuli |Alex Moriarty |Dan Davies |Aron Walsh

<!-- Release notes generated using configuration in .github/release.yml at master --> What's Changed SMACT Metallicity Handling Enhancements by @ryannduma in https://github.com/WMD-group/SMACT/pull/367 Changes to the smact_validity function to allow for early short-circuiting resolving issue #378 by @ryannduma in https://github.com/WMD-group/SMACT/pull/379 Merge develop into master branch by @AntObi in https://github.com/WMD-group/SMACT/pull/392 Updated oxidation.py and its tests by @KingaMas...

Jan 13, 2025 | zenodo.org | Anthony Onwuli |Alex Moriarty |Dan Davies |Aron Walsh

<!-- Release notes generated using configuration in .github/release.yml at master --> What's Changed Make the Materials Project tests optional by @AntObi in https://github.com/WMD-group/SMACT/pull/360 Correct the python version in the docs by @KingaMas in https://github.com/WMD-group/SMACT/pull/359 Include crystal space utils in package build by @AntObi in https://github.com/WMD-group/SMACT/pull/361 New Contributors @KingaMas made their first contribution in...

Oct 30, 2024 | nature.com | Taehoon Kim |Seung-Jae Shin |Jinwoo Cheon |Aron Walsh |Seung-Rok Kim

AbstractTwo-dimensional (2D) elemental metals, often overlooked owing to their lack of switching or dielectric properties, have the potential to exhibit unique properties unachievable by their bulk counterparts if their microstructure can be controlled. Here we propose an electrodeposition method that utilizes a confined 2D template to prepare elemental metal nanosheets with an aligned grain orientation, resulting in an exceptionally high in-plane electrical anisotropy of >103.

Oct 8, 2024 | nature.com | Christopher E. Petoukhoff |Changzeng Ding |Mirko Prato |Nada Mrkyvkova |Peter Siffalovic |Stefaan De Wolf | +3 more

AbstractInterface engineering is the core of device optimization, and this is particularly true for perovskite photovoltaics (PVs). The steady improvement in their performance has been largely driven by careful manipulation of interface chemistry to reduce unwanted recombination. Despite that, PVs devices still suffer from unavoidable open circuit voltage (VOC) losses. Here, we propose a different approach by creating a photo-ferroelectric perovskite interface.

Sep 15, 2024 | nature.com | Kanghoon Yim |Aron Walsh

AbstractFlexible and lightweight Cu(In,Ga)Se2 (CIGS) thin-film solar cells are promising for versatile applications, but there is limited understanding of stress-induced changes. In this study, the charge carrier generation and trapping behavior under mechanical stress was investigated using flexible CIGS thin-film solar cells with various alkali treatments. Surface current at the CIGS surface decreased by convex bending, which occurs less with the incorporation of alkali metals.