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Updated: Jun 4, 2026

Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light
Published on: September 12, 2014
Enhanced performance of the dye-sensitized solar cells with phenothiazine-based dyes containing double D-A branches
Derong Cao1, Jinan Peng, Yanping Hong
1School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China. drcao@scut.edu.cn
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.
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