Issue 120, 2015
From the journal:

RSC Advances

Low band-gap weak donor–strong acceptor conjugated polymer for organic solar cell†

Zugui Shi,a   Ivy Wong Hoi Ka,a   Xizu Wang,a   Chellappan Vijila, ORCID logo a   Fei Wang,a   Gongqiang Li,a   Weng Weei Tjiu,a   Jun Li*a  and  Jianwei Xu*ab  

* 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: jw-xu@imre.a-star.edu.sg, j-li@imre.a-star.edu.sg

b Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543

Abstract

By insertion of an additional weak acceptor into a donor–acceptor conjugated polymer backbone, a new weak donor–strong acceptor alternating copolymer PTTBOBT-DFBT was synthesized and it showed a low band-gap of 1.64 eV with a deep HOMO energy level (−5.44 eV). The bulk heterojunction (BHJ) solar cell fabricated from polymer PTTBOBT-DFBT displayed a remarkable power conversion efficiency (PCE) of 5.36% (Jsc = 11.04 mA cm−2, FF = 63.65%, Voc = 0.76 V).

Graphical abstract: Low band-gap weak donor–strong acceptor conjugated polymer for organic solar cell

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Article information

DOI
https://doi.org/10.1039/C5RA19715E
Article type
Communication
Submitted
24 Sep 2015
Accepted
10 Nov 2015
First published
12 Nov 2015

RSC Adv., 2015,5, 98876-98879

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Low band-gap weak donor–strong acceptor conjugated polymer for organic solar cell

Z. Shi, I. W. Hoi Ka, X. Wang, C. Vijila, F. Wang, G. Li, W. W. Tjiu, J. Li and J. Xu, RSC Adv., 2015, 5, 98876 DOI: 10.1039/C5RA19715E

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