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Updated: Apr 26, 2026

Printing Fabrication of Bulk Heterojunction Solar Cells and In Situ Morphology Characterization
Published on: January 29, 2017
High performance asymmetrical push-pull small molecules end-capped with cyanophenyl for solution-processed solar
Hang Gao1, Yanqin Li, Lihui Wang
1School of Chemistry, Dalian University of Technology, Dalian, China. lxyin@dlut.edu.cn.
Abstract:
Two novel asymmetrical push-pull small molecules have been synthesized successfully, consisting of triphenylamine and diketopyrrolopyrrole as a fundamental dipolar D-π-A structure with ethynylbenzene as the π-bridge. TPATDPPCN end-capped with cyanophenyl exhibits a low optical band gap of 1.65 eV, and an impressive PCE of 5.94% has been achieved.
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