Chen Lung-Chien, Wu Jia-Ren, Tseng Zhong-Liang, Chen Cheng-Chiang, Chang Sheng Hsiung, Huang Jun-Kai, Lee King-Lien, Cheng Hsin-Ming
Department of Electro-Optical Engineering, National Taipei University of Technology, Chung-Hsiao E. Road, Taipei 10608, Taiwan.
Research Center for New Generation Photovoltaics, National Central University, Taoyuan 32001, Taiwan.
Materials (Basel). 2016 Sep 3;9(9):747. doi: 10.3390/ma9090747.
This study determines the effects of annealing treatment on the structure and the optical and electronic behaviors of the mixed (FAPbI₃)(MAPbBr₃) perovskite system. The experimental results reveal that (FAPbI₃)(MAPbBr₃) (x ~ 0.2) is an effective light-absorbing material for use in inverted planar perovskite solar cells owing to its large absorbance and tunable band gap. Therefore, good band-matching between the (FAPbI₃)(MAPbBr₃) and C in photovoltaic devices can be controlled by annealing at various temperatures. Accordingly, an inverted mixed perovskite solar cell with a record efficiency of 12.0% under AM1.5G irradiation is realized.
本研究确定了退火处理对混合（FAPbI₃）（MAPbBr₃）钙钛矿体系的结构以及光学和电学行为的影响。实验结果表明，（FAPbI₃）（MAPbBr₃）（x≈0.2）因其高吸光度和可调带隙，是用于倒置平面钙钛矿太阳能电池的有效吸光材料。因此，通过在不同温度下退火，可以控制光伏器件中（FAPbI₃）（MAPbBr₃）与C之间良好的能带匹配。据此，实现了在AM1.5G光照下效率达12.0%的创纪录的倒置混合钙钛矿太阳能电池。
