期刊
NATURE COMMUNICATIONS
卷 11, 期 1, 页码 -出版社
NATURE RESEARCH
DOI: 10.1038/s41467-020-19062-8
关键词
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资金
- Netherlands Organisation for Scientific Research via the NWO Spinoza grant [680.91.011]
- Ministry of Education, Culture, and Science [024.001.035]
- Dutch Ministry of Economic Affairs and the Netherlands Enterprise Agency (RVO) via the Top-consortia Knowledge and Innovation (TKI) Program in project ALLSUN [TEZ0214010]
Perovskite semiconductors hold a unique promise in developing multijunction solar cells with high-efficiency and low-cost. Besides design constraints to reduce optical and electrical losses, integrating several very different perovskite absorber layers in a multijunction cell imposes a great processing challenge. Here, we report a versatile two-step solution process for high-quality 1.73eV wide-, 1.57eV mid-, and 1.23eV narrow-bandgap perovskite films. Based on the development of robust and low-resistivity interconnecting layers, we achieve power conversion efficiencies of above 19% for monolithic all-perovskite tandem solar cells with limited loss of potential energy and fill factor. In a combination of 1.73eV, 1.57eV, and 1.23eV perovskite sub-cells, we further demonstrate a power conversion efficiency of 16.8% for monolithic all-perovskite triple-junction solar cells. Integrating several different perovskite absorber layers in a multi-junction solar cell imposes a great processing challenge. Here, the authors demonstrate a versatile two-step solution process for fabricating monolithic all-perovskite triple-junction solar cells.
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