Recent Advances in Photoelectrochemical Applications of Silicon Materials for Solar‐to‐Chemicals Conversion

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  • Doudou Zhang
    Key Laboratory of Applied Surface and Colloid Chemistry National Ministry of Education Shaanxi Key Laboratory for Advanced Energy Devices Shaanxi Engineering Lab for Advanced Energy Technology Institute for Advanced Energy Materials School of Materials Science and Engineering Shaanxi Normal University Xi'an 710119 PR China
  • Jingying Shi
    State Key Laboratory of Catalysis Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian Liaoning 116023 PR China
  • Wei Zi
    Key Laboratory of Applied Surface and Colloid Chemistry National Ministry of Education Shaanxi Key Laboratory for Advanced Energy Devices Shaanxi Engineering Lab for Advanced Energy Technology Institute for Advanced Energy Materials School of Materials Science and Engineering Shaanxi Normal University Xi'an 710119 PR China
  • Pengpeng Wang
    State Key Laboratory of Catalysis Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian Liaoning 116023 PR China
  • Shengzhong (Frank) Liu
    Key Laboratory of Applied Surface and Colloid Chemistry National Ministry of Education Shaanxi Key Laboratory for Advanced Energy Devices Shaanxi Engineering Lab for Advanced Energy Technology Institute for Advanced Energy Materials School of Materials Science and Engineering Shaanxi Normal University Xi'an 710119 PR China

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<jats:title>Abstract</jats:title><jats:p>Photoelectrochemical (PEC) technology for the conversion of solar energy into chemicals requires cost‐effective photoelectrodes to efficiently and stably drive anodic and/or cathodic half‐reactions to complete the overall reactions for storing solar energy in chemical bonds. The shared properties among semiconducting photoelectrodes and photovoltaic (PV) materials are light absorption, charge separation, and charge transfer. Earth‐abundant silicon materials have been widely applied in the PV industry, and have demonstrated their efficiency as alternative photoabsorbers for photoelectrodes. Many efforts have been made to fabricate silicon photoelectrodes with enhanced performance, and significant progress has been achieved in recent years. Herein, recent developments in crystalline and thin‐film silicon‐based photoelectrodes (including amorphous, microcrystalline, and nanocrystalline silicon) immersed in aqueous solution for PEC hydrogen production from water splitting are summarized, as well as applications in PEC CO<jats:sub>2</jats:sub> reduction and PEC regeneration of discharged species in redox flow batteries. Silicon is an ideal material for the cost‐effective production of solar chemicals through PEC methods.</jats:p>

Journal

  • ChemSusChem

    ChemSusChem 10 (22), 4324-4341, 2017-11-13

    Wiley

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