D-π-A-π-D type benzothiadiazole-triphenylamine based small molecules containing cyano on the π-bridge for solution-processed organic solar cells with high open-circuit voltage

Shaohang Zeng; Lunxiang Yin; Changyan Ji; Xueying Jiang; Kechang Li; Yanqin Li; Yue Wang

doi:10.1039/c2cc35754b

D-π-A-π-D type benzothiadiazole-triphenylamine based small molecules containing cyano on the π-bridge for solution-processed organic solar cells with high open-circuit voltage

Chem Commun (Camb). 2012 Nov 7;48(86):10627-9. doi: 10.1039/c2cc35754b.

Authors

Shaohang Zeng¹, Lunxiang Yin, Changyan Ji, Xueying Jiang, Kechang Li, Yanqin Li, Yue Wang

Affiliation

¹ School of Chemistry, Dalian University of Technology, Dalian, China.

PMID: 23011190
DOI: 10.1039/c2cc35754b

Abstract

Two novel D-π-A-π-D structured small molecules composed of benzothiadiazole and triphenylamine were designed and synthesized. with cyano on the π-bridge exhibited a deep HOMO energy level, resulting in an impressive V(OC) of up to 1.04 V with a PCE of 3.85%, while non-cyano substituted yielded a V(OC) of 0.94 V and a PCE of 1.99%.