期刊
SOLAR RRL
卷 6, 期 1, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/solr.202100767
关键词
additive engineering; interface engineering; over 23%; perovskite solar cells; voltage and fill factors
资金
- National Research Foundation of Korea (NRF) - Ministry of Science and ICT (MSIT) of Korea [NRF-2021R1A3B1076723, NRF-2016M3D1A1027663, NRF-2016M3D1A1027664]
- Support plan for Overseas Students to Return to China for Entrepreneurship and Innovation [cx2020003]
- Fundamental Research Funds for the Central Universities [2020CDJQY-A028, 2020CDJ-LHZZ-074]
- Natural Science Foundation of Chongqing [cstc2020jcyj-msxmX0629]
The advancements of formamidinium-rich perovskite solar cells with efficiencies exceeding 23% are summarized in terms of composition engineering, solvent engineering, additive engineering, and interface engineering, proposing possible strategies and methods to further improve voltage and fill factor for ideal power conversion efficiency.
To further improve power conversion efficiency (PCE) toward Shockley-Queisser limit efficiency approaching 32% for a single-junction perovskite solar cell (PSC) based on a lead halide perovskite with a bandgap of about 1.45 eV, it is important to improve the open-circuit voltage and fill factor (FF) significantly without sacrificing short-circuit current density. Herein, the advancements of the formamidinium-rich PSCs with PCEs exceeding 23% from the viewpoints of composition engineering, solvent engineering, additive engineering, and interface engineering are summarized and discussed. Based on the lessons, the possible strategies, methods, and research directions are proposed to further improve voltage and FF for ideal PCEs.
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