A New Nonfullerene Electron Acceptor with a Ladder Type Backbone for High-Performance Organic Solar Cells

Nailiang Qiu; Huijing Zhang; Xiangjian Wan; Chenxi Li; Xin Ke; Huanran Feng; Bin Kan; Hongtao Zhang; Qiang Zhang; Yan Lu; Yongsheng Chen

doi:10.1002/adma.201604964

A New Nonfullerene Electron Acceptor with a Ladder Type Backbone for High-Performance Organic Solar Cells

Adv Mater. 2017 Feb;29(6). doi: 10.1002/adma.201604964. Epub 2016 Nov 28.

Authors

Nailiang Qiu^{1

2}, Huijing Zhang^{1

2}, Xiangjian Wan^{1

2}, Chenxi Li^{1

2}, Xin Ke^{1

2}, Huanran Feng^{1

2}, Bin Kan^{1

2}, Hongtao Zhang^{1

2}, Qiang Zhang³, Yan Lu³, Yongsheng Chen^{1

2}

Affiliations

¹ The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials State Key Laboratory and Institute of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, China.
² School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin, 300071, China.
³ Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin, 300384, China.

PMID: 27892638
DOI: 10.1002/adma.201604964

Abstract

Nonfullerene acceptor FDICTF (2,9-bis(2methylene-(3-(1,1-dicyanomethylene)indanone))-7,12-dihydro-4,4,7,7,12,12-hexaoctyl-4H-cyclopenta[2″,1″:5,6;3″,4″:5',6']diindeno[1,2-b:1',2'-b']dithiophene) modified by fusing the fluorene core in a precursor, yields 10.06% high power conversion efficiency, and demonstrates that the ladder and fused core backbone in A-D-A structure molecules is an effective design strategy for high-performance nonfullerene acceptors.

Keywords: high efficiency; ladder type structures; nonfullerene acceptor; organic solar cells.