Nano-scale structure and stability of biogenic uranium(IV) oxide

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Pivotal Role of Intersite Hubbard Interactions in Fe-Doped alpha-MnO2

Iurii Timrov

We present a first-principles investigation of the structural, electronic, and magnetic properties of the pristine and Fe-doped alpha-MnO2 using density-functional theory with extended Hubbard functionals. The onsite U and intersite V Hubbard parameters ar ...

AMER CHEMICAL SOC2022

Nanoscale Controlled Oxidation of Liquid Metals for Stretchable Electronics and Photonics

Stéphanie Lacour, Fabien Sorin, Wei Yan, Louis Marie Philippe Martin-Monier

Liquid metals based on gallium have attracted considerable attention for soft and bioelectronics, thanks to their excellent combination of stretchability and conductivity. Nevertheless, owing to their large surface tension, these materials are notoriously ...

2020

Electronic and structural characterization of barrier-type amorphous aluminium oxide

Alfredo Pasquarello, Francesco Ambrosio, Claudia Cancellieri

The structural, electronic, and dielectric properties of barrier -type anodic Al oxides prepared with various thicknesses have been investigated. The planar and cross morphologies as well as the surface charge distribution were investigated as a function o ...

Elsevier2017

Light trapping in solar cells: can periodic beat random?

Christophe Ballif, Franz-Josef Haug, Matthieu Despeisse, Mathieu Gérard Boccard, Marco Cantoni, Duncan Thomas Lindsay Alexander, Corsin Battaglia, Jordi Escarre Palou, Karin Söderström

Theory predicts that periodic photonic nanostructures should outperform their random counterparts in trapping light in solar cells. However, the current certified world-record conversion efficiency for amorphous silicon thin-film solar cells, which strongl ...

2012