Dibenzo[f,h]thieno[3,4-b] quinoxaline-based small molecules for efficient bulk-heterojunction solar cells
Journal
Organic Letters
Journal Volume
11
Journal Issue
21
Pages
4898-4901
Date Issued
2009
Author(s)
Velusamy, M.
Huang, J.-H.
Hsu, Y.-C.
Chou, H.-H.
Ho, K.-C.
Wu, P.-L.
Chang, W.-H.
Lin, J.T.
Chu, C.-W.
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.
SDGs
Type
journal article