Nonfullerene Tandem Organic Solar Cells with High Open-Circuit Voltage of 1.97 V

Wenqing Liu; Shuixing Li; Jiang Huang; Shida Yang; Jiehuan Chen; Lijian Zuo; Minmin Shi; Xiaowei Zhan; Chang-Zhi Li; Hongzheng Chen

doi:10.1002/adma.201603518

Nonfullerene Tandem Organic Solar Cells with High Open-Circuit Voltage of 1.97 V

Adv Mater. 2016 Nov;28(44):9729-9734. doi: 10.1002/adma.201603518. Epub 2016 Sep 16.

Authors

Affiliations

¹ State Key Laboratory of Silicon Materials, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China.
² State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Information, University of Electronic Science and Technology of China (UESTC), Chengdu, 610054, P. R. China.
³ Department of Materials Science and Engineering, College of Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Peking University, Beijing, 100871, China.

PMID: 27634640
DOI: 10.1002/adma.201603518

Abstract

Small-molecule nonfullerene-based tandem organic solar cells (OSCs) are fabricated for the first time by utilizing P3HT:SF(DPPB)₄ and PTB7-Th:IEIC bulk heterojunctions as the front and back subcells, respectively. A power conversion efficiency of 8.48% is achieved with an ultrahigh open-circuit voltage of 1.97 V, which is the highest voltage value reported to date among efficient tandem OSCs.

Keywords: nonfullerene; open-circuit voltage; organic solar cells; tandem solar cells.