Abstract:
:Large-area, pinhole-free CH3NH3PbI3 perovskite thin films were successfully fabricated on 5 cm × 5 cm flexible indium tin oxide coated polyethylene naphthalate (ITO-PEN) substrates through a sequential evaporation/spin-coating deposition method in this research. The influence of the rate-controlled evaporation of PbI2 films on the quality of the perovskite layer and the final performance of the planar-structured perovskite solar cells were investigated. An ultrafast evaporation rate of 20 Å s-1 was found to be most beneficial for the conversion of PbI2 to CH3NH3PbI3 perovskite. Based on this high-quality CH3NH3PbI3 film, a resultant flexible perovskite solar sub-module (active area of 16 cm2) with a power conversion efficiency of more than 8% and a 1.2 cm2 flexible perovskite solar cell with a power conversion efficiency of 12.7% were obtained.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Li K,Xiao J,Yu X,Li T,Xiao D,He J,Zhou P,Zhang Y,Li W,Ku Z,Zhong J,Huang F,Peng Y,Cheng Ydoi
10.1038/s41598-017-18970-ysubject
Has Abstractpub_date
2018-01-11 00:00:00pages
442issue
1issn
2045-2322pii
10.1038/s41598-017-18970-yjournal_volume
8pub_type
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