Solution-processed new porphyrin-based small molecules as electron donors for highly efficient organic photovoltaics

Song Chen; Liangang Xiao; Xunjin Zhu; Xiaobing Peng; Wai-Kwok Wong; Wai-Yeung Wong

doi:10.1039/c5cc05807d

Solution-processed new porphyrin-based small molecules as electron donors for highly efficient organic photovoltaics

Chem Commun (Camb). 2015 Oct 4;51(77):14439-42. doi: 10.1039/c5cc05807d. Epub 2015 Aug 7.

Authors

Song Chen¹, Liangang Xiao, Xunjin Zhu, Xiaobing Peng, Wai-Kwok Wong, Wai-Yeung Wong

Affiliation

¹ Institute of Molecular Functional Materials, Department of Chemistry and Institute of Advanced Materials, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, P. R. China. xjzhu@hkbu.edu.hk wkwong@hkbu.edu.hk rwywong@hkbu.edu.hk.

PMID: 26248887
DOI: 10.1039/c5cc05807d

Abstract

A series of unsymmetrical π-conjugated small molecules have been constructed from meso-alkyl substituted porphyrins as the central unit and 3-ethylrhodanine as the terminal group. Using PC71BM as an acceptor, and these small molecules as electron donors in solution-processed bulk-heterojunction solar cells, a high power conversion efficiency of 6.49% has been achieved.