Notable Performance Enhancement of CsPbI2Br Solar Cells by a Dual-Function Strategy with CsPbBr3 Nanocrystals
Yanzhou Wang,
Yali Li,
Zhe Gao
et al.
Abstract:Herein, a dual-function strategy, in which CsPbI2Br
is treated by CsPbBr3 nanocrystals (NCs) via addition and
surface modification to construct the “electron bridge”
and gradient heterojunction, respectively, to notably improve the
performance of the CsPbI2Br solar cells, is proposed. The
“electron bridge” formed by the CsPbBr3 NCs
provides an extra transport channel for the photogenerated electrons
in the CsPbI2Br layer, thus facilitating electron transport.
Meanwhile, surface modification of CsPbI2Br by the … Show more
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