Issue 34, 2015
From the journal:

RSC Advances

Photovoltaic performance of ladder-type indacenodithieno[3,2-b]thiophene-based polymers with alkoxyphenyl side chains

Yue Zang,ab   Yun-Xiang Xu,bc   Chu-Chen Chueh,b   Chang-Zhi Li,b   Hsiu-Cheng Chen,d   Kung-Hwa Wei,d   Jun-Sheng Yu*a  and  Alex K.-Y. Jen*b  

* Corresponding authors

a State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Information, University of Electronic Science and Technology of China (UESTC), Chengdu, P. R. China
E-mail: jsyu@uestc.edu.cn

b Department of Materials Science and Engineering, University of Washington, Box 352120, Seattle, Washington, USA
E-mail: ajen@u.washington.edu

c College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials and Engineering, Sichuan University, Chengdu, P. R. China

d Department of Materials Science and Engineering, National Chiao Tung University, 300 Hsinchu, Taiwan

Abstract

Two new ladder-type conjugated polymers, PIDTT-DFBT-EH and PIDTT-F-PhanQ-EH, are prepared through the copolymerization of heptacyclic IDTT with F-PhanQ and DFBT electron deficient moieties. The introduction of 4-(2-ethylhexyloxy)-phenyl (EHOPh) side-chains onto the polymer is beneficial for achieving high molecular weight and good solution-processability of materials. The derived polymer solar cells yielded PCEs of 5.48% (PIDTT-DFBT-EH) and 5.14% (PIDTT-F-PhanQ-EH), without engaging post-solvent or solvent additive treatments.

Graphical abstract: Photovoltaic performance of ladder-type indacenodithieno[3,2-b]thiophene-based polymers with alkoxyphenyl side chains

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Article information

DOI
https://doi.org/10.1039/C5RA01763G
Article type
Communication
Submitted
29 Jan 2015
Accepted
09 Mar 2015
First published
09 Mar 2015

RSC Adv., 2015,5, 26680-26685

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Photovoltaic performance of ladder-type indacenodithieno[3,2-b]thiophene-based polymers with alkoxyphenyl side chains

Y. Zang, Y. Xu, C. Chueh, C. Li, H. Chen, K. Wei, J. Yu and A. K.-Y. Jen, RSC Adv., 2015, 5, 26680 DOI: 10.1039/C5RA01763G

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