Efficient organic dyes based on perpendicular 6, 12-diphenyl substituted indolo[3, 2-b]carbazole donor. Issue 12 (10th November 2016)

• Record Type: Journal Article
• Authors: Xiao, Zhanhai; Di, Yi; Tan, Zhifang; Cheng, Xudong; Chen, Bing; Feng, Jiwen
• Is Part Of: Photochemical & photobiological sciences. Volume 15:Issue 12(2016:Dec.)
• Page Start: 1514
• Page End: 1523
• Publication Date: 2016-11-10
• Subjects: Photochemistry -- Periodicals; Photobiology -- Periodicals; 541.35
• DOI: 10.1039/c6pp00286b
• Languages: English
• ISSNs: 1474-905X

Abstract

Abstract : Three novel indolo[3, 2- b ]carbazole-based dyes have been designed and synthesized using a 6, 12-diphenyl substituted indolo[3, 2- b ]carbazole as a donor, a thiophene cyanoacrylic acid moiety as electron acceptor and anchoring group, together with triphenylamine, 3, 4, 5-trimethoxybenzene and bromine as a second donor. Abstract : Three novel indolo[3, 2- b ]carbazole-based dyes have been designed and synthesized using a 6, 12-diphenyl substituted indolo[3, 2- b ]carbazole core as a π-conjugated donor, a thiophene cyanoacrylic acid moiety as electron acceptor and anchoring group, together with triphenylamine, 3, 4, 5-trimethoxybenzene and bromine as a second donor group. The photophysical and electrochemical properties of the dyes have been investigated by UV spectroscopy and cyclic voltammetry (CV). Our study indicates that the second donor plays the important role of improving dye aggregation as well as tuning the photoelectronic properties. These indolo[3, 2- b ]carbazole based dyes show good performances with high V oc of 0.75 V, FF of 0.72, and a moderate PCE of 3.11% under AM 1.5 irradiation.