Synergistic effect of polymer and small molecules for high-performance ternary organic solar cells

Yajie Zhang; Dan Deng; Kun Lu; Jianqi Zhang; Benzheng Xia; Yifan Zhao; Jin Fang; Zhixiang Wei

doi:10.1002/adma.201404902

Synergistic effect of polymer and small molecules for high-performance ternary organic solar cells

Adv Mater. 2015 Feb;27(6):1071-6. doi: 10.1002/adma.201404902. Epub 2014 Dec 8.

Authors

Yajie Zhang¹, Dan Deng, Kun Lu, Jianqi Zhang, Benzheng Xia, Yifan Zhao, Jin Fang, Zhixiang Wei

Affiliation

¹ National Center for Nanoscience and Technology, Beijing, 100190, China.

PMID: 25655181
DOI: 10.1002/adma.201404902

Abstract

A ternary blend system with two donors and one acceptor provides an effective route to improve the performance of organic solar cells. A synergistic effect of polymer and small molecules is observed in ternary solar cells, and the power conversion efficiency (PCE) of the ternary system (8.40%) is higher than those of binary systems based on small molecules (7.48%) or polymers (6.85%).

Keywords: bulk heterojunction; charge transport; organic photovoltaics; ternary blend.