Enhanced performance of the dye-sensitized solar cells with phenothiazine-based dyes containing double D-A branches

Derong Cao; Jinan Peng; Yanping Hong; Xiaoming Fang; Lingyun Wang; Herbert Meier

doi:10.1021/ol2000167

Enhanced performance of the dye-sensitized solar cells with phenothiazine-based dyes containing double D-A branches

Org Lett. 2011 Apr 1;13(7):1610-3. doi: 10.1021/ol2000167. Epub 2011 Mar 3.

Authors

Derong Cao¹, Jinan Peng, Yanping Hong, Xiaoming Fang, Lingyun Wang, Herbert Meier

Affiliation

¹ School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China. drcao@scut.edu.cn

PMID: 21370866
DOI: 10.1021/ol2000167

Abstract

Double donor-acceptor (D-A) branched dyes (DBD) with a phenothiazine unit as electron donor and a 2-cyanoacrylic acid unit as electron acceptor were synthesized and used as sensitizers for solar cells (DSSCs). The conversion efficiency of the DSSCs amounts up to 4.22% (2.91% for the single D-A branched dye) under AM 1.5 G irradiation. The results show that the performance of DSSCs can be effectively enhanced by the cooperation of two donor-acceptor containing branches in one molecule of the dyes.