用于增强光电化学水分离的金属绝缘体-半导体光电极。

IF 39 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Shice Wei, Xuewen Xia, Shuai Bi, Shen Hu, Xuefeng Wu, Hsien-Yi Hsu, Xingli Zou, Kai Huang, David W. Zhang, Qinqqing Sun, Allen J. Bard, Edward T. Yu and Li Ji
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引用次数: 0

摘要

光电化学(PEC)水分离技术为利用可再生太阳能进行绿色制氢提供了一个可扩展的集成平台。光电化学系统的实际应用取决于解决三个关键挑战:提高能量转换效率、确保长期稳定性和实现经济可行性。金属-绝缘体-半导体(MIS)异质结光电极能够有效分离光生载流子并缓解腐蚀引起的半导体降解,因此在过去十年中备受关注。本综述讨论了专为 PEC 水分离量身定制的 MIS 光电极的结构组成和界面复杂性。首先介绍了 MIS 异质结构在各种半导体吸光层上的应用,包括传统的光伏级半导体、金属氧化物和新兴材料。随后,本综述阐明了真空和非真空沉积技术在制造绝缘体层时的反应机制和各自的优点。在金属层方面,本综述超越了传统范围,不仅介绍了基于金属的共催化剂,还探讨了集成在 MIS 光电极中的分子和单原子催化剂的最新进展。此外,还系统总结了 MIS 光电极的载流子传输机制和界面设计原则,这对于优化能带排列和提高 PEC 系统中太阳能到化学物质的转换效率至关重要。最后,本综述探讨了 MIS 光电极的创新衍生配置,包括背照式 MIS 光电极、倒置式 MIS 光电极、串联式 MIS 光电极和单片集成无线 MIS 光电极。这些新型结构通过有效耦合不同的功能模块、最大限度地降低光损耗和欧姆损耗以及减少重组损耗,解决了传统 MIS 结构的局限性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Metal–insulator–semiconductor photoelectrodes for enhanced photoelectrochemical water splitting

Metal–insulator–semiconductor photoelectrodes for enhanced photoelectrochemical water splitting

Metal–insulator–semiconductor photoelectrodes for enhanced photoelectrochemical water splitting

Photoelectrochemical (PEC) water splitting provides a scalable and integrated platform to harness renewable solar energy for green hydrogen production. The practical implementation of PEC systems hinges on addressing three critical challenges: enhancing energy conversion efficiency, ensuring long-term stability, and achieving economic viability. Metal–insulator–semiconductor (MIS) heterojunction photoelectrodes have gained significant attention over the last decade for their ability to efficiently segregate photogenerated carriers and mitigate corrosion-induced semiconductor degradation. This review discusses the structural composition and interfacial intricacies of MIS photoelectrodes tailored for PEC water splitting. The application of MIS heterostructures across various semiconductor light-absorbing layers, including traditional photovoltaic-grade semiconductors, metal oxides, and emerging materials, is presented first. Subsequently, this review elucidates the reaction mechanisms and respective merits of vacuum and non-vacuum deposition techniques in the fabrication of the insulator layers. In the context of the metal layers, this review extends beyond the conventional scope, not only by introducing metal-based cocatalysts, but also by exploring the latest advancements in molecular and single-atom catalysts integrated within MIS photoelectrodes. Furthermore, a systematic summary of carrier transfer mechanisms and interface design principles of MIS photoelectrodes is presented, which are pivotal for optimizing energy band alignment and enhancing solar-to-chemical conversion efficiency within the PEC system. Finally, this review explores innovative derivative configurations of MIS photoelectrodes, including back-illuminated MIS photoelectrodes, inverted MIS photoelectrodes, tandem MIS photoelectrodes, and monolithically integrated wireless MIS photoelectrodes. These novel architectures address the limitations of traditional MIS structures by effectively coupling different functional modules, minimizing optical and ohmic losses, and mitigating recombination losses.

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来源期刊
Chemical Society Reviews
Chemical Society Reviews 化学-化学综合
CiteScore
80.80
自引率
1.10%
发文量
345
审稿时长
6.0 months
期刊介绍: Chemical Society Reviews is published by: Royal Society of Chemistry. Focus: Review articles on topics of current interest in chemistry; Predecessors: Quarterly Reviews, Chemical Society (1947–1971); Current title: Since 1971; Impact factor: 60.615 (2021); Themed issues: Occasional themed issues on new and emerging areas of research in the chemical sciences
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