Triphenylamine–thiazolothiazole–benzodithiophene based conjugated copolymers for polymer solar cells

Two novel conjugated copolymers (P1 and P2) with donor–acceptor architecture, based on triphenylamine, benzodithiophene and thiazolothiazole (TTz), have been prepared by the Stille coupling reaction. Compared with alternative copolymer P1 with the single electron-withdrawing unit TTz, random copolym...

Full description

Saved in:
Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2016-05, Vol.27 (5), p.4705-4710
Main Authors: Xie, Yingpeng, Peng, Zuosheng, Jia, Tao, Zhang, Huicong, Hou, Qiong, Luo, Suilian, Zeng, Ronghua, Hou, Lintao
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemical reactions
Chemistry and Materials Science
Copolymers
Devices
Electrical properties
Energy gaps (solid state)
Materials Science
Optical and Electronic Materials
Optical properties
Photovoltaic cells
Solar cells
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Two novel conjugated copolymers (P1 and P2) with donor–acceptor architecture, based on triphenylamine, benzodithiophene and thiazolothiazole (TTz), have been prepared by the Stille coupling reaction. Compared with alternative copolymer P1 with the single electron-withdrawing unit TTz, random copolymer P2 introduced another stronger electron-withdrawing unit benzothiadiazole intramolecularly. Incorporation of two different electron-withdrawing units on the backbone was proved to have a significant influence on the optical and electrical properties. Compared with P1, copolymer P2 has the wider absorption spectrum, lower bandgap, and therefore the better device performances.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-016-4350-7