期刊
SOLAR RRL
卷 4, 期 2, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/solr.201900206
关键词
antireflection; current matching; light management; light trapping; monolithic perovskite; silicon tandem solar cells; parasitic absorption
资金
- National Key Research and Development Program of China [2018YFB1500103]
- National Natural Science Foundation of China [61674084]
- Overseas Expertise Introduction Project for Discipline Innovation of Higher Education of China [B16027]
- Tianjin Science and Technology Project [18ZXJMTG00220]
- Fundamental Research Funds for the Central Universities, Nankai University [63191736, ZB19500204]
Perovskite/silicon tandem solar cells (TSCs), especially two-terminal, with a record efficiency of 28% already realized, present great potential as low-cost and efficient substitutes for dominant silicon photovoltaics. Achieving efficiencies exceeding 30% is quite realistic, as indicated by extensive optical simulations. Super light management in monolithic perovskite/silicon TSCs is one of the prerequisites to make this a reality. In this Review, various forms of optical losses, such as reflection loss, parasitic absorption, and current mismatch, are analyzed systematically to provide a better understanding of the performance of perovskite/silicon TSCs. Particularly, a simple refractive index matching rule derived from the Fresnel equation is proposed as a basis for material selection and device design. Meanwhile, an overview of the current strategies and challenges in monolithic perovskite/silicon TSCs is provided, comprising bandgap engineering of perovskites and light trapping methods, aiming to provide guidance for further improvement of tandem devices.
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