期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 16, 期 36, 页码 19206-19211出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4cp02113d
关键词
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资金
- Chinese National Natural Science Foundation [51202266, 21271180, 21103214]
- Research Program of Qingdao [13-1-4-228-jch, 13-4-1-10-gx, 12-1-4-9-(4)-jch]
- U.S. National Science Foundation [DMR-1305913]
Formamidinium (FA) lead triiodide perovskite with chlorine addition (NH2CH=NH(2)Pbl((3-x))Cl(x)) is employed as a light harvester in mesoscopic solar cells for the first time. It is demonstrated that a phase-pure FAPbl((3-x))Cl(x) perovskite layer can be synthesized using a one-step solution-process at 140 degrees C, and the resultant solar cells deliver a maximum power conversion efficiency of 7.51%, which is the most efficient formamidinium-lead-halide perovskite mesoscopic solar cell employing a polymer hole-transporting layer. The effects of the thermal annealing temperature on the quality/morphology of the perovskite layer and the solar cells performance are discussed. The advantages offered by the one-step solution-processing method and the reduced bandgap make FAPbl((3-x))Cl(x) perovskites an attractive choice for future hybrid photovoltaics.
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