期刊
ADVANCED MATERIALS
卷 31, 期 31, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201805513
关键词
hydrogen production; photoelectrochemistry; photonic nanostructures; surface plasmons; water splitting
类别
资金
- Operational Programme Research, Development and Education-European Regional Development Fund of the Ministry of Education, Youth and Sports of the Czech Republic [02.1.01/0.0/0.0/15_003/0000416, 02.1.01/0.0/0.0/16_019/0000754]
- Air Force Office of Scientific Research grant [FA9550-17-1-0243]
Photoelectrochemical (PEC) water splitting is a promising approach for producing hydrogen without greenhouse gas emissions. Despite decades of unceasing efforts, the efficiency of PEC devices based on earth-abundant semiconductors is still limited by their low light absorption, low charge mobility, high charge-carrier recombination, and reduced diffusion length. Plasmonics has recently emerged as an effective approach for overcoming these limitations, although a full understanding of the involved physical mechanisms remains elusive. Here, the reported plasmonic effects are outlined, such as resonant energy transfer, scattering, hot electron injection, guided modes, and photonic effects, as well as the less investigated catalytic and thermal effects used in PEC water splitting. In each section, the fundamentals are reviewed and the most representative examples are discussed, illustrating possible future developments for achieving improved efficiency of plasmonic photoelectrodes.
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