High-Performance Non-Fullerene Polymer Solar Cells Based on a Pair of Donor-Acceptor Materials with Complementary Absorption Properties

Haoran Lin; Shangshang Chen; Zhengke Li; Joshua Yuk Lin Lai; Guofang Yang; Terry McAfee; Kui Jiang; Yunke Li; Yuhang Liu; Huawei Hu; Jingbo Zhao; Wei Ma; Harald Ade; He Yan

doi:10.1002/adma.201502775

High-Performance Non-Fullerene Polymer Solar Cells Based on a Pair of Donor-Acceptor Materials with Complementary Absorption Properties

Adv Mater. 2015 Dec 2;27(45):7299-304. doi: 10.1002/adma.201502775. Epub 2015 Oct 13.

Authors

Haoran Lin^{1

2}, Shangshang Chen^{1

2}, Zhengke Li^{1

2}, Joshua Yuk Lin Lai², Guofang Yang², Terry McAfee³, Kui Jiang², Yunke Li², Yuhang Liu², Huawei Hu², Jingbo Zhao², Wei Ma⁴, Harald Ade³, He Yan^{1

2}

Affiliations

¹ The Hong Kong University of Science and Technology-Shenzhen Research Institute, No. 9 Yuexing 1st RD, Hi-tech Park, Nanshan, Shenzhen, 518057, China.
² Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong.
³ Department of Physics and Organic and Carbon Electronics Laboratory, North Carolina State University, Raleigh, NC, 27695, USA.
⁴ State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China.

PMID: 26462030
DOI: 10.1002/adma.201502775

Abstract

A 7.3% efficiency non-fullerene polymer solar cell is realized by combining a large-bandgap polymer PffT2-FTAZ-2DT with a small-bandgap acceptor IEIC. The complementary absorption of donor polymer and small-molecule acceptor is responsible for the high-performance of the solar-cell device. This work provides important guidance to improve the performance of non-fullerene polymer solar cells.

Keywords: balanced mobility; complementary absorption; donor-acceptor materials; large bandgap polymers; non-fullerene polymer solar cells.

MeSH terms

Electrochemical Techniques
Fullerenes / chemistry*
Light
Polymers / chemistry*
Solar Energy*

Substances

Fullerenes
Polymers