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Recent Advances in Sensitized Photocathodes: From Molecular Dyes to Semiconducting Quantum Dots
Advanced Science ( IF 14.3 ) Pub Date : 2018-01-08 , DOI: 10.1002/advs.201700684 Hao-Lin Wu 1, 2 , Xu-Bing Li 1, 2 , Chen-Ho Tung 1, 2 , Li-Zhu Wu 1, 2
Advanced Science ( IF 14.3 ) Pub Date : 2018-01-08 , DOI: 10.1002/advs.201700684 Hao-Lin Wu 1, 2 , Xu-Bing Li 1, 2 , Chen-Ho Tung 1, 2 , Li-Zhu Wu 1, 2
Affiliation
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The increasing demand for sustainable and environmentally benign energy has stimulated intense research to establish highly efficient photo‐electrochemical (PEC) cells for direct solar‐to‐fuel conversion via water splitting. Light absorption, as the initial step of the catalytic process, is regarded as the foundation of establishing highly efficient PEC systems. To make full use of visible light, sensitization on photoelectrodes using either molecular dyes or semiconducting quantum dots provides a promising method. In this field, however, there remain many fundamental issues to be solved, which need in‐depth study. Here, fundamental knowledge of PEC systems is introduced to enable readers a better understanding of this field. Then, the development history and current state in both molecular dye‐ and quantum dot‐sensitized photocathodes for PEC water splitting are discussed. A systematical comparison between the two systems has been made. Special emphasis is placed on the research of quantum dot‐sensitized photocathodes, which have shown superiority in both efficiency and durability towards PEC water splitting at the present stage. Finally, the opportunities and challenges in the future for sensitized PEC water‐splitting systems are proposed.
中文翻译：
敏化光电阴极的最新进展：从分子染料到半导体量子点
对可持续和环境友好能源的需求不断增长，刺激了人们深入研究建立高效光电化学（PEC）电池，通过水分解将太阳能直接转化为燃料。光吸收作为催化过程的第一步，被认为是建立高效PEC系统的基础。为了充分利用可见光，使用分子染料或半导体量子点对光电极进行敏化提供了一种有前途的方法。但该领域仍存在许多基础性问题有待解决，需要深入研究。这里介绍PEC系统的基础知识，以便读者更好地了解该领域。然后，讨论了用于 PEC 水分解的分子染料和量子点敏化光电阴极的发展历史和现状。对两个系统进行了系统的比较。特别重点是量子点敏化光电阴极的研究，其在现阶段的PEC水分解方面显示出在效率和耐久性方面的优势。最后，提出了敏化PEC水分解系统未来的机遇和挑战。
更新日期：2018-01-08
中文翻译：
敏化光电阴极的最新进展：从分子染料到半导体量子点
对可持续和环境友好能源的需求不断增长，刺激了人们深入研究建立高效光电化学（PEC）电池，通过水分解将太阳能直接转化为燃料。光吸收作为催化过程的第一步，被认为是建立高效PEC系统的基础。为了充分利用可见光，使用分子染料或半导体量子点对光电极进行敏化提供了一种有前途的方法。但该领域仍存在许多基础性问题有待解决，需要深入研究。这里介绍PEC系统的基础知识，以便读者更好地了解该领域。然后，讨论了用于 PEC 水分解的分子染料和量子点敏化光电阴极的发展历史和现状。对两个系统进行了系统的比较。特别重点是量子点敏化光电阴极的研究，其在现阶段的PEC水分解方面显示出在效率和耐久性方面的优势。最后，提出了敏化PEC水分解系统未来的机遇和挑战。
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