Issue 2, 2013
From the journal:

Polymer Chemistry

An alternating copolymer based on dithienothiophene and diketopyrrolopyrrole units for thin-film transistors and organic solar cells†

Kang Yee Seah,a   Jun Li,*a   Kok-Haw Ong,a   Huei-Shuan Tan,a   Siew-Lay Lim,a   Hoi-Ka Wonga  and  Zhi-Kuan Chen*a  

* Corresponding authors

a Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 3 Research Link, Singapore 117602
E-mail: j-li@imre.a-star.edu.sg, zk-chen@imre.a-star.edu.sg
Tel: +65 68747116

Abstract

An alternating donor–acceptor copolymer using dithienothiophene as the donor unit and diketopyrrolopyrrole as the acceptor unit has been synthesized and characterized. Preliminary studies of OTFT devices based on this copolymer showed a high annealing-free saturation hole mobility of 0.13 cm2 V−1 s−1. Initial bulk heterojunction solar cells based on the blends of the copolymer with PC71BM had a power conversion efficiency of 3.4% under 100 mW cm−2 AM1.5 solar illumination.

Graphical abstract: An alternating copolymer based on dithienothiophene and diketopyrrolopyrrole units for thin-film transistors and organic solar cells

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Article information

DOI
https://doi.org/10.1039/C2PY20795H
Article type
Communication
Submitted
26 Sep 2012
Accepted
27 Oct 2012
First published
30 Oct 2012

Polym. Chem., 2013,4, 260-263

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An alternating copolymer based on dithienothiophene and diketopyrrolopyrrole units for thin-film transistors and organic solar cells

K. Y. Seah, J. Li, K. Ong, H. Tan, S. Lim, H. Wong and Z. Chen, Polym. Chem., 2013, 4, 260 DOI: 10.1039/C2PY20795H

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