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Issue 15, 2014
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Efficient polymer solar cells based on terpolymers with a broad absorption range of 300–900 nm

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Abstract

Three novel random conjugated terpolymers were designed and synthesized by copolymerizing a benzo[1,2-b:4,5-b′]dithiophene (BDT) donor with an electron-deficient diketopyrrolo[3,4-c]pyrrole (DPP) unit and a thiophene-vinylene-dithienyl-benzothiadiazole (TVDTBT) side group into a polymer backbone. By tuning the ratio of DPP and TVDTBT in the terpolymers, the optical properties and energy levels of these random terpolymers could be rationally controlled. As a result, the terpolymers exhibited a very broad absorption range of 300–900 nm with a high absorption coefficient and deep HOMO energy levels. Bulk heterojunction polymer solar cells fabricated from P3 and PC61BM exhibited a promising power conversion efficiency of 5.29% without any processing additives.

Graphical abstract: Efficient polymer solar cells based on terpolymers with a broad absorption range of 300–900 nm

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Publication details

The article was received on 02 Jan 2014, accepted on 20 Jan 2014 and first published on 21 Jan 2014


Article type: Paper
DOI: 10.1039/C4TA00020J
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J. Mater. Chem. A, 2014,2, 5218-5223

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    Efficient polymer solar cells based on terpolymers with a broad absorption range of 300–900 nm

    Y. Huang, M. Zhang, H. Chen, F. Wu, Z. Cao, L. Zhang and S. Tan, J. Mater. Chem. A, 2014, 2, 5218
    DOI: 10.1039/C4TA00020J

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