Dibenzo[f,h]thieno[3,4-b] quinoxaline-based small molecules for efficient bulk-heterojunction solar cells

Marappan Velusamy; Jen-Hsien Huang; Ying-Chan Hsu; Hsien-Hsin Chou; Kuo-Chuan Ho; Pei-Lun Wu; Wei-Hau Chang; Jiann T Lin; Chih-Wei Chu

doi:10.1021/ol9019953

Dibenzo[f,h]thieno[3,4-b] quinoxaline-based small molecules for efficient bulk-heterojunction solar cells

Org Lett. 2009 Nov 5;11(21):4898-901. doi: 10.1021/ol9019953.

Authors

Marappan Velusamy¹, Jen-Hsien Huang, Ying-Chan Hsu, Hsien-Hsin Chou, Kuo-Chuan Ho, Pei-Lun Wu, Wei-Hau Chang, Jiann T Lin, Chih-Wei Chu

Affiliation

¹ Institute of Chemistry, Academia Sinica, Nankang, Taiwan.

PMID: 19780591
DOI: 10.1021/ol9019953

Abstract

Two isomeric compounds (1 and 2) containing a dibenzo[f,h]thieno[3,4-b]quinoxaline core and two peripheral arylamines were synthesized. Solution-processed bulk heterojunction (BHJ) solar cells based on these sensitizers and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) are reported. The cell fabricated from 1/67 wt % of PCBM exhibited a high power conversion efficiency of 1.70% and an external quantum yield of 55%. The film of the cell was found to have balanced electron and hole mobility and good film morphology.