Black Silicon Photoanodes Entirely Prepared with Abundant Materials by Low-Cost Wet Methods

We report a new design for water-splitting photoanodes, based on a highly absorbing black silicon (BSi) substrate modified with catalytic metal nanoparticles (NPs). The overall fabrication strategy is cost-efficient as it only requires the use of abundant materials and simple wet procedures such as...

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Bibliographic Details
Published in:ACS applied energy materials 2019-02, Vol.2 (2), p.1006-1010
Main Authors: Oh, K, Joanny, L, Gouttefangeas, F, Fabre, B, Dorcet, V, Lassalle-Kaiser, B, Vacher, A, Mériadec, C, Ababou-Girard, S, Loget, G
Format: Article
Language:English
Subjects:
Chemical Sciences
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Summary:We report a new design for water-splitting photoanodes, based on a highly absorbing black silicon (BSi) substrate modified with catalytic metal nanoparticles (NPs). The overall fabrication strategy is cost-efficient as it only requires the use of abundant materials and simple wet procedures such as electrochemical etching and electrodeposition and does not involve the use of a buried homojunction and protection layer. Importantly, these results demonstrate that electrodeposited transition metal NPs can stabilize structured Si photoelectrodes without the need for a protection layer.
ISSN:2574-0962
2574-0962
DOI:10.1021/acsaem.8b02229