A low bandgap asymmetrical squaraine for high-performance solution-processed small molecule organic solar cells

Daobin Yang; Qianqian Yang; Lin Yang; Qian Luo; Yao Chen; Youqin Zhu; Yan Huang; Zhiyun Lu; Suling Zhao

doi:10.1039/c4cc03831b

A low bandgap asymmetrical squaraine for high-performance solution-processed small molecule organic solar cells

Chem Commun (Camb). 2014 Aug 25;50(66):9346-8. doi: 10.1039/c4cc03831b.

Authors

Daobin Yang¹, Qianqian Yang, Lin Yang, Qian Luo, Yao Chen, Youqin Zhu, Yan Huang, Zhiyun Lu, Suling Zhao

Affiliation

¹ Key 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.

PMID: 25001015
DOI: 10.1039/c4cc03831b

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%.