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Synthesis and photovoltaic behaviors of benzothiadiazole- and triphenylamine-based alternating copolymers
Chinese Academy of Science.
Beijing Normal University.
Chinese Academy of Science.
Chinese Academy of Science.
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2012 (English)In: Polymer, ISSN 0032-3861, E-ISSN 1873-2291, Vol. 53, no 2, 324-332 p.Article in journal (Refereed) Published
Abstract [en]

A series of donor-acceptor (D-A) alternating copolymers (P1, P2 and P3) with thiophene -benzothiadiazole-thiophene-triphenylamine main chain have been synthesized by Suzuki poly-condensation. P1, P2, and P3 possess medium optical band gaps of 1.99, 1.97 and 1.93 eV, respectively. Bulk heterojunction polymer solar cells (BHJ PSCs) with these polymers as donor and PC71BM as acceptor showed power conversion efficiency (PCE) in the range of 2.1-2.8%. The highest PCE of 2.8 % was achieved for P1 with short circuit current (J(SC),) of 7.8 mA/cm(2). This study offers a useful and important insight for designing triphenylamine derivative-based polymers used for efficient PSCs.

Place, publisher, year, edition, pages
Elsevier , 2012. Vol. 53, no 2, 324-332 p.
Keyword [en]
Conjugated polymers, D-A copolymers, Polymer solar cells
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-75281DOI: 10.1016/j.polymer.2011.12.026ISI: 000299607400009OAI: diva2:505921
Funding Agencies|NSF of China|2083400650821062|Swedish Research Council (VR)||VINNOVA (VINNMER)||Available from: 2012-02-27 Created: 2012-02-24 Last updated: 2012-02-27

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Zhang, Fengling
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Biomolecular and Organic ElectronicsThe Institute of Technology
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