Recent Advances in CuInS2-Based Photocathodes for Photoelectrochemical H2 Evolution

Photoelectrochemical (PEC) H2 production from water using solar energy is an ideal and environmentally friendly process. CuInS2 is a p-type semiconductor that offers many advantages for PEC H2 production. Therefore, this review summarizes studies on CuInS2-based PEC cells designed for H2 production....

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Bibliographic Details
Published in:Nanomaterials (Basel, Switzerland) Switzerland), 2023-04, Vol.13 (8), p.1361
Main Authors: Yoon, Noyoung, Joo, Oh, Chae, Sang, Park, Eun
Format: Article
Language:English
Subjects:
Alternative energy sources
cocatalyst
copper indium sulfide
Efficiency
Electrodes
Electrolytes
Fossil fuels
heterojunction
Heterojunctions
Hydrogen
Hydrogen evolution
hydrogen evolution reaction
Hydrogen production
Light
Methods
P-type semiconductors
Photocatalysis
Photocathodes
photoelectrochemical cell
Renewable resources
Review
Semiconductors
Solar energy
Thin films
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Summary:Photoelectrochemical (PEC) H2 production from water using solar energy is an ideal and environmentally friendly process. CuInS2 is a p-type semiconductor that offers many advantages for PEC H2 production. Therefore, this review summarizes studies on CuInS2-based PEC cells designed for H2 production. The theoretical background of PEC H2 evolution and properties of the CuInS2 semiconductor are initially explored. Subsequently, certain important strategies that have been executed to improve the activity and charge-separation characteristics of CuInS2 photoelectrodes are examined; these include CuInS2 synthesis methods, nanostructure development, heterojunction construction, and cocatalyst design. This review helps enhance the understanding of state-of-the-art CuInS2-based photocathodes to enable the development of superior equivalents for efficient PEC H2 production.
ISSN:2079-4991
2079-4991
DOI:10.3390/nano13081361