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首页> 外文期刊>The journal of physical chemistry, C. Nanomaterials and interfaces >Toward Efficient Charge Collection and Light Absorption: A Perspective of Light Trapping for Advanced Photoelectrodes
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Toward Efficient Charge Collection and Light Absorption: A Perspective of Light Trapping for Advanced Photoelectrodes

机译：朝向高效电荷收集和光吸收：高级光电诱捕光捕获的视角

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摘要

Sun light driven water splitting is a promising method to produce hydrogen in a clean and sustainable way. The photoelectrochemical (PEC) cell is highly desirable among various solar water splitting techniques as it is potentially robust, cost-effective, and durable. However, arguably the biggest problem to date for sustainable photoelectrodes currently under intensive study is that the carrier diffusion length is always much shorter than the optical length, thus seriously limiting the cell's power conversion efficiency. Light trapping strategies could enable multiple passes of light through the absorber to enhance the absorption while still keeping the absorber thickness below the transport limitation. Herein we briefly review recent developments of light management strategies in PEC electrodes by focusing on the relevant concepts, materials, and structures. In addition, current shortcomings and outlooks will be discussed in the hope that more attention of the research community will be drawn to this promising field.
机译：Sun Light驱动的水分裂是以清洁和可持续的方式生产氢的有希望的方法。光电化学（PEC）电池在各种太阳能水分裂技术中是非常理想的，因为它具有稳健性，经济高效和耐用。然而，可以说是当前密集研究的可持续光电区的最大问题是载波扩散长度总是短于光学长度，因此严重限制了电池的电力转换效率。光捕获策略可以通过吸收器使光通过吸收器多次通过，以增强吸收，同时保持吸收器厚度低于运输限制。在此，我们简要介绍了通过专注于相关的概念，材料和结构来审查PEC电极中光管理策略的最新发展。此外，将讨论当前的缺点和前景，希望将更多地关注研究界将被绘制到这一有前途的领域。

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    Qiu Weitao; Xiao Shuang; Tong Yexiang; Yang Shihe;

  • 作者单位

    Peking Univ Shenzhen Grad Sch Sch Chem Biol &

    Biotechnol Guangdong Prov Key Lab Nanomicro Mat Res Shenzhen 518055 Peoples R China;

    Peking Univ Shenzhen Grad Sch Sch Chem Biol &

    Biotechnol Guangdong Prov Key Lab Nanomicro Mat Res Shenzhen 518055 Peoples R China;

    SYSU Key Lab Low Carbon Chem &

    Energy Conservat Guangd MOE Key Lab Bioinorgan &

    Synthet Chem KLGHEI Environm &

    Energy Chem Sch Chem Guangzhou 510275 Guangdong Peoples R China;

    Peking Univ Shenzhen Grad Sch Sch Chem Biol &

    Biotechnol Guangdong Prov Key Lab Nanomicro Mat Res Shenzhen 518055 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 物理化学（理论化学）、化学物理学;
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