Nonfullerene Polymer Solar Cells with 8.5% Efficiency Enabled by a New Highly Twisted Electron Acceptor Dimer

作者:Hwang, Ye-Jin; Li, Haiyan; Courtright, Brett A. E.; Subramaniyan, Selvam; Jenekhe, Samson A.*
来源:Advanced Materials, 2016, 28(1): 124-+.
DOI:10.1002/adma.201503801

摘要

Fullerene-free and processing additive-free 8.5% efficient polymer solar cells are achieved by using a new 3,4-ethylene-dioxythiophene- linked arylene diimide dimer with a 76 degrees twist angle. The devices combine high (78-83%) external quantum efficiency with high (0.91-0.95 V) photovoltages and thus have relatively low optical bandgap energy loss.

  • 出版日期2016-1-6