Modulating charge separation and transfer for high-performance photoelectrodes via built-in electric field

Houyan Cheng; Peng Liu; Yuntao Cui; Ru Ya; Yuxiang Hu; Jinshu Wang

doi:10.1007/s12613-024-2862-3

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Houyan Cheng, Peng Liu, Yuntao Cui, Ru Ya, Yuxiang Hu, and Jinshu Wang, Modulating charge separation and transfer for high-performance photoelectrodes via built-in electric field, Int. J. Miner. Metall. Mater.,(2024). https://doi.org/10.1007/s12613-024-2862-3

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Houyan Cheng, Peng Liu, Yuntao Cui, Ru Ya, Yuxiang Hu, and Jinshu Wang, Modulating charge separation and transfer for high-performance photoelectrodes via built-in electric field, Int. J. Miner. Metall. Mater.,(2024). https://doi.org/10.1007/s12613-024-2862-3

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Modulating charge separation and transfer for high-performance photoelectrodes via built-in electric field

+ Author Affiliations

Corresponding authors:
Yuntao Cui    E-mail: cuiyuntao@mail.ipc.ac.cn

Ru Ya    E-mail: yaruhao@163.com

Yuxiang Hu    E-mail: y.hu@bjut.edu.cn

Jinshu Wang    E-mail: wangjsh@bjut.edu.cn
Received: 2 November 2023; Revised: 20 February 2024; Accepted: 22 February 2024; Available online: 23 February 2024

Abstract

Abstract

Constructing a built-in electric field has emerged as a key strategy for enhancing charge separation and transfer, thereby improving photoelectrochemical performance. Recently, considerable efforts have been devoted to this endeavor. This review systematically summarizes the impact of built-in electric fields on enhancing charge separation and transfer mechanisms, focusing on the modulation of built-in electric fields in terms of depth and orderliness. First, mechanisms and tuning strategies for built-in electric fields are explored. Then, the state-of-the-art works regarding built-in electric fields for modulating charge separation and transfer are summarized and categorized according to surface and interface depth. Finally, current strategies for constructing bulk built-in electric fields in photoelectrodes are explored, and insights into future developments for enhancing charge separation and transfer in high-performance photoelectrochemical applications are provided.
- photoelectrochemical water splitting;
- bulk built-in electric field;
- cation intercalation;
- charge separation and transfer

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