Journal
CHEMICAL COMMUNICATIONS
Volume 57, Issue 7, Pages 935-938Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0cc07213c
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Funding
- Basic and Applied Basic Research Major Program of Guangdong Province [2019B030302007]
- National Natural Science Foundation of China [21822505]
- National Key Research and Development Program of China [2019YFA0705900]
- MOST
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A new polymer acceptor, PS1, was developed by linking a non-fullerene acceptor building block with dithienothiophen[3,2-b]pyrrolo-benzotriazole capped with 3-(dicyanomethylidene)-indan-1-one via a thiophene spacer, enabling it to be easily dissolved in non-chlorinated solvents. When using 2-methyltetrahydrofuran as the processing solvent, the all-PSC composed of PS1 and a polymer donor PTzBI-oF achieved a remarkably high power conversion efficiency of 13.8% in the light-harvesting layer.
A new polymer acceptor, PS1, was developed by connecting the non-fullerene acceptor building block of dithienothiophen[3,2-b]pyrrolo-benzotriazole capped with 3-(dicyanomethylidene)-indan-1-one through a thiophene spacer. The solubilizing alkyl side groups in the central unit enabled PS1 to be readily dissolved in non-chlorinated solvents. By using 2-methyltetrahydrofuran as the processing solvent, the all-polymer solar cell (all-PSC) containing PS1 and a polymer donor PTzBI-oF in the light-harvesting layer exhibited an impressively high power conversion efficiency of 13.8%.
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