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Updated: Apr 27, 2026
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A low bandgap asymmetrical squaraine for high-performance solution-processed small molecule organic solar cells
Daobin Yang1, Qianqian Yang, Lin Yang
1Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, P. R. China. huangyan@scu.edu.cn luzhiyun@scu.edu.cn.
Abstract:
A novel asymmetrical squaraine ASQ-5 bearing indoline as an end capper exhibits a low bandgap of 1.43 eV and a broad absorption band in the Vis-NIR region of 550-850 nm in thin films, hence renders solution-processed organic solar cells with an impressive Jsc of up to 11.03 mA cm(-2) and an excellent PCE of 4.29%.
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