Nonfullerene Polymer Solar Cells with 8.5% Efficiency Enabled by a New Highly Twisted Electron Acceptor Dimer. Issue 1 (29th October 2015)

• Record Type: Journal Article
• Authors: Hwang, Ye‐Jin; Li, Haiyan; Courtright, Brett A. E.; Subramaniyan, Selvam; Jenekhe, Samson A.
• Is Part Of: Advanced materials. Volume 28:Issue 1(2016)
• Page Start: 124
• Page End: 131
• Publication Date: 2015-10-29
• Subjects: diimide dimers -- polymer solar cells -- nonfullerene acceptors -- optical band gap -- organic solar cells; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201503801
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract : Fullerene‐free and processing additive‐free 8.5% efficient polymer solar cells are achieved by using a new 3, 4‐ethylenedioxythiophene‐linked arylene diimide dimer with a 76° 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.