Developing high-performance small molecule organic solar cells via a large planar structure and an electron-withdrawing central unit

Zhang, HT (Zhang, Hongtao)^{[ 1,2,3,4 ]} ; Liu, YT (Liu, Yongtao)^[ 1,2,3 ] ; Sun, YN (Sun, Yanna)^{[ 1,2,3,4 ]} ; Li, MM (Li, Miaomiao)^[ 1,2,3 ] ; Kan, B (Kan, Bin)^[ 1,2,3 ] ; Ke, X (Ke, Xin)^{[ 1,2,3,4 ]} ; Zhang, Q (Zhang, Qian)^[ 1,2,3 ] ; Wan, XJ (Wan, Xiangjian)^{[ 1,2,3,4 ]} ; Chen, YS (Chen, Yongsheng)^{[ 1,2,3,4 ]}

CHEMICAL COMMUNICATIONS, 2017, 53(2): 451-454

DOI: 10.1039/c6cc07927j

 WOS:000391736100038

Abstract

We designed and synthesized a new small molecule donor material named DR3TBDD using an electron-withdrawing unit BDD as the central building block. A PCE of 9.53% with a high V-oc of around 1 V was achieved.