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Materials 2016, 9(9), 747; doi:10.3390/ma9090747

Annealing Effect on (FAPbI3)1−x(MAPbBr3)x Perovskite Films in Inverted-Type Perovskite Solar Cells

1
Department of Electro-Optical Engineering, National Taipei University of Technology, Chung-Hsiao E. Road, Taipei 10608, Taiwan
2
Research Center for New Generation Photovoltaics, National Central University, Taoyuan 32001, Taiwan
3
Material and Chemical Research Laboratories, Industrial Technology Research Institute, Hsinchu 31040, Taiwan
*
Author to whom correspondence should be addressed.
Academic Editor: Lioz Etgar
Received: 27 June 2016 / Revised: 16 August 2016 / Accepted: 29 August 2016 / Published: 3 September 2016
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Abstract

This study determines the effects of annealing treatment on the structure and the optical and electronic behaviors of the mixed (FAPbI3)1−x(MAPbBr3)x perovskite system. The experimental results reveal that (FAPbI3)1−x(MAPbBr3)x (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)1−x(MAPbBr3)x and C60 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. View Full-Text
Keywords: MAPbI3; FAI; organic solar cells; perovskite MAPbI3; FAI; organic solar cells; perovskite
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Chen, L.-C.; Wu, J.-R.; Tseng, Z.-L.; Chen, C.-C.; Chang, S.H.; Huang, J.-K.; Lee, K.-L.; Cheng, H.-M. Annealing Effect on (FAPbI3)1−x(MAPbBr3)x Perovskite Films in Inverted-Type Perovskite Solar Cells. Materials 2016, 9, 747.

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