Indacenodithiophene-based small-molecule donor with strong crystallinity for efficient organic solar cells
Yan Zheng a, Sunan Bao a, Hang Yang a, Hongyu Fan a, Dongdong Fan a, Chaohua Cui *a（崔超华） and Yongfang Li ab
a Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor-Optoelectronics Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
b Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
Chem. Commun., 2021, 57, 10767--10770
Two indacenodithiophene (IDT)-based small-molecule analogues (IDBT and IDBT-Cl) are designed as donor materials for organic solar cells. Relative to the amorphous IDBT-Cl, the IDBT with strong crystallinity shows overall better photovoltaic performance when blended with a Y6 acceptor. The results demonstrate the great potential of IDT units in designing efficient small-molecule donors.
链接：https://pubs.rsc.org/en/content/articlelanding/2021/cc/d1cc04559h