期刊
NATURE ENERGY
卷 2, 期 12, 页码 972-979出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41560-017-0054-3
关键词
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资金
- European Commission [643791]
- Swiss State Secretariat for Education, Research and Innovation (SERI)
- Marie Sklodowska Curie [665667]
- SNSF Ambizione Energy SNF project [PZENP2_173641]
- Ministry of Economy and Competitiveness [CTQ2014-56422-P]
- Toyota Motor Europe Technical Center, Advanced Technology division, Home [Wei 33, B-1930]
- [588072]
- [COST-STSM-MP1307]
- [SFB951]
- Swiss National Science Foundation (SNF) [PZENP2_173641] Funding Source: Swiss National Science Foundation (SNF)
Organic-inorganic lead halide perovskites have shown photovoltaic performances above 20% in a range of solar cell architectures while offering simple and low-cost processability. Despite the multiple ionic compositions that have been reported so far, the presence of organic constituents is an essential element in all of the high-efficiency formulations, with the methylammonium and formamidinium cations being the sole efficient options available to date. In this study, we demonstrate improved material stability after the incorporation of a large organic cation, guanidinium, into the MAPbI(3) crystal structure, which delivers average power conversion efficiencies over 19%, and stabilized performance for 1,000 h under continuous light illumination, a fundamental step within the perovskite field.
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