Authors
Guichuan Zhang, Kai Zhang, Qingwu Yin, Xiao-Fang Jiang, Zaiyu Wang, Jingming Xin, Wei Ma, He Yan, Fei Huang, Yong Cao
Publication date
2017/2/15
Journal
Journal of the American Chemical Society
Volume
139
Issue
6
Pages
2387-2395
Publisher
American Chemical Society
Description
Ternary organic solar cells (OSCs) have attracted much research attention in the past few years, as ternary organic blends can broaden the absorption range of OSCs without the use of complicated tandem cell structures. Despite their broadened absorption range, the light harvesting capability of ternary OSCs is still limited because most ternary OSCs use thin active layers of about 100 nm in thickness, which is not sufficient to absorb all photons in their spectral range and may also cause problems for future roll-to-roll mass production that requires thick active layers. In this paper, we report a highly efficient ternary OSC (11.40%) obtained by incorporating a nematic liquid crystalline small molecule (named benzodithiophene terthiophene rhodanine (BTR)) into a state-of-the-art PTB7-Th:PC71BM binary system. The addition of BTR into PTB7-Th:PC71BM was found to improve the morphology of the blend film with …
Scholar articles
G Zhang, K Zhang, Q Yin, XF Jiang, Z Wang, J Xin… - Journal of the American Chemical Society, 2017