Issue 3, 2015

Thieno[2,3,a]carbazole donor-based organic dyes for high efficiency dye-sensitized solar cells

Abstract

A new series of donor–π-acceptor organic K-dyes based on the thieno[2,3,a]carbazole moiety as a new electron donor, trithiophene as a π-linker and cyanoacrylic acid as an electron acceptor were designed and synthesized for achieving high performances in dye-sensitized solar cells (DSCs). The substituent effect and the molecular planarity for photophysical properties and DSC performances of K-dyes have been investigated, and the highest power conversion efficiency of 7.4% has been achieved. EIS and IMVS were employed to study the effect of the molecular structure on the charge transfer process and electron lifetime.

Graphical abstract: Thieno[2,3,a]carbazole donor-based organic dyes for high efficiency dye-sensitized solar cells

Supplementary files

Article information

Article type
Research Article
Submitted
02 Xim 2014
Accepted
20 Qun 2015
First published
20 Qun 2015

Org. Chem. Front., 2015,2, 253-258

Thieno[2,3,a]carbazole donor-based organic dyes for high efficiency dye-sensitized solar cells

J. Zhao, K. Oniwa, A. Islam, C. Qin, N. Asao, L. Han, Y. Yamamoto and T. Jin, Org. Chem. Front., 2015, 2, 253 DOI: 10.1039/C4QO00285G

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