Jump to main content
Jump to site search

Issue 23, 2014
Previous Article Next Article

Synthesis and photovoltaic properties of thieno[3,2-b]thiophenyl substituted benzo[1,2-b:4,5-b′]dithiophene copolymers

Author affiliations

Abstract

A new benzo[1,2-b:4,5-b′]dithiophene (BDT) building block with 4,8-disubstitution using 2-(2-ethylhexyl)-3-hexylthieno[3,2-b]thiophene as the substituent has been designed and synthesized. The new building block has been copolymerized with benzothiadiazole (BT) and 5,6-difluorobenzothiadiazole (fBT) by Suzuki and Stille coupling polymerization to synthesize donor–acceptor conjugated polymers. The optical and electrochemical properties of the synthesized copolymers were studied. Bulk heterojunction solar cells were fabricated using the donor–acceptor copolymers in conjunction with PC71BM and exhibited up to 4.20% power conversion efficiency.

Graphical abstract: Synthesis and photovoltaic properties of thieno[3,2-b]thiophenyl substituted benzo[1,2-b:4,5-b′]dithiophene copolymers

Back to tab navigation

Supplementary files

Publication details

The article was received on 13 Jun 2014, accepted on 22 Jul 2014 and first published on 19 Aug 2014


Article type: Paper
DOI: 10.1039/C4PY00827H
Author version available: Download Author version (PDF)
Citation: Polym. Chem., 2014,5, 6710-6717
  •   Request permissions

    Synthesis and photovoltaic properties of thieno[3,2-b]thiophenyl substituted benzo[1,2-b:4,5-b′]dithiophene copolymers

    Z. Xiao, J. Subbiah, K. Sun, D. J. Jones, A. B. Holmes and W. W. H. Wong, Polym. Chem., 2014, 5, 6710
    DOI: 10.1039/C4PY00827H

Search articles by author

Spotlight

Advertisements