Annealing Effect on (FAPbI₃)1-x(MAPbBr₃)x Perovskite Films in Inverted-Type Perovskite Solar Cells.
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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.
SUBMITTER: Chen LC
PROVIDER: S-EPMC5457094 | biostudies-other | 2016 Sep
REPOSITORIES: biostudies-other
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