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

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.
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-02086216
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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

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K. Oh, L. Joanny, F. Gouttefangeas, Bruno Fabre, V. Dorcet, et al.. Black Silicon Photoanodes Entirely Prepared with Abundant Materials by Low-Cost Wet Methods. ACS Applied Energy Materials, ACS, In press, ACS Appl. Energy Mater., 2 (2), pp.1006. ⟨10.1021/acsaem.8b02229⟩. ⟨hal-02086216⟩

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