Issue 6, 2013
From the journal:

Polymer Chemistry

Design and synthesis of benzothiadiazole–oligothiophene polymers for organic solar cell applications†

Kok-Haw Ong,ab   Siew-Lay Lim,a   Jun Li,a   Hoi-Ka Wong,a   Huei-Shuan Tan,a   Ting-Ting Lin,a   Lionel C.-H. Moh,a   John C. de Mello*b  and  Zhi-Kuan Chen*a  

* Corresponding authors

a Institute of Materials Research and Engineering, 3 Research Link, Singapore 117602
E-mail: zk-chen@imre.a-star.edu.sg

b Department of Chemistry, Imperial College London, Exhibition Road, London SW7 2AZ, UK
E-mail: j.demello@imperial.ac.uk

Abstract

A series of p-type copolymers based on oligothiophene and benzothiadiazole units was synthesised via Stille coupling and their physical, electrochemical and photovoltaic properties were evaluated. The polymers varied in the number and type of oligothiophene units as well as in the position of the solubilizing alkyl chains relative to the benzothiadiazole unit. These differences in the polymer structure had a significant impact on the thin-film transistor mobility and the solar cell power conversion efficiency, thus illustrating the importance of these design factors for polymers in optoelectronic applications.

Graphical abstract: Design and synthesis of benzothiadiazole–oligothiophene polymers for organic solar cell applications

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Article information

DOI
https://doi.org/10.1039/C2PY20898A
Article type
Paper
Submitted
25 Oct 2012
Accepted
18 Dec 2012
First published
18 Dec 2012

Polym. Chem., 2013,4, 1863-1873

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Design and synthesis of benzothiadiazole–oligothiophene polymers for organic solar cell applications

K. Ong, S. Lim, J. Li, H. Wong, H. Tan, T. Lin, L. C.-H. Moh, J. C. de Mello and Z. Chen, Polym. Chem., 2013, 4, 1863 DOI: 10.1039/C2PY20898A

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