New triphenylamine organic dyes containing dithieno[3,2-b:2',3'-d]pyrrole (DTP) units for iodine-free dye-sensitized solar cells

Zhihui Wang; Mao Liang; Lina Wang; Yujie Hao; Chunbo Wang; Zhe Sun; Song Xue

doi:10.1039/c3cc42121j

New triphenylamine organic dyes containing dithieno[3,2-b:2',3'-d]pyrrole (DTP) units for iodine-free dye-sensitized solar cells

Chem Commun (Camb). 2013 Jun 28;49(51):5748-50. doi: 10.1039/c3cc42121j.

Authors

Zhihui Wang¹, Mao Liang, Lina Wang, Yujie Hao, Chunbo Wang, Zhe Sun, Song Xue

Affiliation

¹ Department of Chemistry, Tianjin University, Tianjin, 300072, P.R. China.

PMID: 23685398
DOI: 10.1039/c3cc42121j

Abstract

Three dithieno[3,2-b:2',3'-d]pyrrole (DTP) units with different hexyloxyphenyl (HOP) substituents have been developed for triphenylamine organic dyes (XS54-XS56). The introduction of the 4-HOP-DTP unit has resulted in a stronger light harvesting capacity, accounting for the observed photocurrent enhancement in the case of XS54, while the 2-HOP-DTP/2,4-HOP-DTP units induce a strikingly large photovoltage improvement in the cases of XS55 and XS56 due to their higher steric hindrance.