Thiophene-thiazolothiazole copolymers: significant impact of side chain composition on backbone orientation and solar cell performances

Itaru Osaka; Masahiko Saito; Tomoyuki Koganezawa; Kazuo Takimiya

doi:10.1002/adma.201303059

Thiophene-thiazolothiazole copolymers: significant impact of side chain composition on backbone orientation and solar cell performances

Adv Mater. 2014 Jan 15;26(2):331-8. doi: 10.1002/adma.201303059. Epub 2013 Oct 8.

Authors

Itaru Osaka¹, Masahiko Saito, Tomoyuki Koganezawa, Kazuo Takimiya

Affiliation

¹ Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8527, Japan; Precursory Research for Embryonic Science and Technology, Japan Science and Technology Agency, Chiyoda-ku, 102-0075, Japan; Emergent Molecular Function Research Group, RIKEN Center for Emergent Matter Science (CEMS) Wako, Saitama, 351-0198, Japan.

PMID: 24403117
DOI: 10.1002/adma.201303059

Abstract

The backbone orientation in the thiophene-thiazolothiazole (TzTz) copolymer system can be altered by tuning of the alky side chain composition. We highlight that the orientation significantly impact their solar cell efficiency in particular when using thicker active layers.

Keywords: orientation; semiconducting polymers; side chain; solar cells; thiazolothiazole.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Polymers / chemistry*
Polystyrenes / chemistry
Solar Energy*
Thiazoles / chemistry*
Thiophenes / chemistry*
Tin Compounds / chemistry
Transistors, Electronic

Substances

Polymers
Polystyrenes
Thiazoles
Thiophenes
Tin Compounds
poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)
indium tin oxide