Issue 9, 2011
From the journal:

Polymer Chemistry

A novel poly(thienylenevinylene) derivative for application in polymer solar cells

Feiyao Qing,a   Yeping Sun,ab   Xiaochen Wang,a   Na Li,a   Yongfang Li,*b   Xiaoyu Li*a  and  Haiqiao Wang*a  

* Corresponding authors

a Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing, P.R.China
E-mail: liyf@iccas.ac.cn, lixy@mail.buct.edu.cn, wanghaiqiao@mail.buct.edu.cn

b Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China

Abstract

A narrow bandgap conjugated polymer poly(2-(5-(5,6-bis(octyloxy)-4-(thiophen-2yl)benzo[c]) [1,2,5]thiadiazol-7-yl)thiophen-2-yl)-vinylene), POTBTV, was synthesized by a Pd-catalyzed Stille-coupling method, for application as donor material in polymer solar cells (PSCs). The polymer possesses good thermal stability and reasonable solubility. The absorption edge of POTBTV film is at 750 nm, indicating a narrow band gap of 1.65 eV. The HOMO and LUMO energy levels of POTBTV are −4.97 eV and −2.99 eV, respectively. The power conversion efficiency (PCE) of the PSC based on POTBTV as the donor PC70BM as the acceptor reached 1.53% with a short circuit current density of 6.83 mA cm−2, an open circuit voltage of 0.6V and a fill factor of 0.374 under the illumination of AM1.5, 100 mW cm−2, which is among the highest PCE values for PSCs based on PTV derivatives.

Graphical abstract: A novel poly(thienylenevinylene) derivative for application in polymer solar cells

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Article information

DOI
https://doi.org/10.1039/C1PY00192B
Article type
Paper
Submitted
04 May 2011
Accepted
13 Jun 2011
First published
25 Jun 2011

Polym. Chem., 2011,2, 2102-2106

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A novel poly(thienylenevinylene) derivative for application in polymer solar cells

F. Qing, Y. Sun, X. Wang, N. Li, Y. Li, X. Li and H. Wang, Polym. Chem., 2011, 2, 2102 DOI: 10.1039/C1PY00192B

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