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Interface passivation using ultrathin polymer–fullerene films for high-efficiency perovskite solar cells with negligible hysteresis

Peng, Jun; Wu, Yiliang; Ye, Wang; Jacobs, Daniel; Shen, Heping; Fu, Xiao; Wan, Yimao; Duong, The; Wu, Nandi; Barugkin, Chog; Nguyen, Hieu T.; Zhong, Dingyong; Li, Juntao; Lu, Teng; Liu, Yun; Lockrey, Mark; Weber, Klaus J.; Catchpole, Kylie; White, Thomas

Description

Interfacial carrier recombination is one of the dominant loss mechanisms in high efficiency perovskite solar cells, and has also been linked to hysteresis and slow transient responses in these cells. Here we demonstrate an ultrathin passivation layer consisting of a PMMA:PCBM mixture that can effectively passivate defects at or near to the perovskite/TiO2 interface, significantly suppressing interfacial recombination. The passivation layer increases the open circuit voltage of mixed-cation...[Show more]

CollectionsANU Research Publications
Date published: 2017-07-03
Type: Journal article
URI: http://hdl.handle.net/1885/164028
Source: Energy & Environmental Science
DOI: 10.1039/C7EE01096F

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