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. 2013 Oct 25;25(40):5772-8.
doi: 10.1002/adma.201302340. Epub 2013 Aug 12.

High-efficiency hybrid solar cells based on polymer/PbSx Se1-x nanocrystals benefiting from vertical phase segregation

Zeke Liu  1 , Yaxiang Sun, Jianyu Yuan, Huaixin Wei, Xiaodong Huang, Lu Han, Weiwei Wang, Haiqiao Wang, Wanli Ma
Affiliations

High-efficiency hybrid solar cells based on polymer/PbSx Se1-x nanocrystals benefiting from vertical phase segregation

Zeke Liu et al. Adv Mater. .

Abstract

Solution-processed hybrid solar cells employing a low band-gap polymer and PbSx Se1-x alloy nanocrystals, achieving a record high PCE of 5.50% and an optimal FF of 67% are presented. The remarkable device efficiency can be attributed to the high-performance active materials, the optimal polymer/NCs ratio and, more importantly, the vertical donor/(donor:acceptor)/acceptor structure which benefits charge dissociation and transport.

Keywords: PbSxSe1-x nanocrystals; hybrid solar cells; three-dimensional morphology; vertical phase segregation.

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