Exploring the effects of interfacial carrier transport layers on device performance and optoelectronic properties of planar perovskite solar cells

Dhruba B. Khadka; Yasuhiro Shirai; Masatoshi Yanagida; James W. Ryan; Kenjiro Miyano

doi:10.1039/c7tc02822a

論文 Exploring the effects of interfacial carrier transport layers on device performance and optoelectronic properties of planar perovskite solar cells

Dhruba B. Khadka (National Institute for Materials Science) ; Yasuhiro Shirai (National Institute for Materials Science) ; Masatoshi Yanagida (National Institute for Materials Science) ; James W. Ryan ; Kenjiro Miyano (National Institute for Materials Science)

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Dhruba B. Khadka, Yasuhiro Shirai, Masatoshi Yanagida, James W. Ryan, Kenjiro Miyano. Exploring the effects of interfacial carrier transport layers on device performance and optoelectronic properties of planar perovskite solar cells. Journal of Materials Chemistry C. 2017, 5 (34), 8819-8827. https://doi.org/10.1039/c7tc02822a

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(abstract)

We found that PTAA device leads to the improvement in interface layer quality, efficient carrier transport and mitigation of bulk defect activities. The analysis of temperature and intensity dependent current–voltage characteristics suggests that PEDOT:PSS device is
limited by interface and trap assisted recombination. The capacitance spectroscopy and electroluminescence revealed soothing of recombination activities as a consequence of better interface quality and shallower defect level for PTAA device. Our results consolidate that the perovskite film and interface quality and recombination activities in device are dominantly influenced by HTLs which pave a way for further enhancement in efficiency coupled with excellent interfacial carrier transport layer.

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