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

K. Oh; L. Joanny; F. Gouttefangeas; Bruno Fabre; V. Dorcet; B. Lassalle-Kaiser; A. Vacher; Cristelle Mériadec; S. Ababou-Girard; Gabriel Loget

doi:10.1021/acsaem.8b02229

Journal articles

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

K. Oh ¹ L. Joanny F. Gouttefangeas Bruno Fabre ¹ V. Dorcet B. Lassalle-Kaiser A. Vacher Cristelle Mériadec ² S. Ababou-Girard ² Gabriel Loget ^{1, *}

* Corresponding author

1 ISCR - Institut des Sciences Chimiques de Rennes

2 IPR - Institut de Physique de Rennes

Abstract : 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.

Keywords : water splitting artificial photosynthesis nickel silicon

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Journal articles

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Chemical Sciences

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Submitted on : Monday, April 15, 2019 - 11:16:29 AM
Last modification on : Tuesday, June 29, 2021 - 3:16:19 AM

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

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

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