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Issue 16, 2016
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Non-fullerene acceptor with low energy loss and high external quantum efficiency: towards high performance polymer solar cells

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Abstract

A non-fullerene electron acceptor bearing a fused 10-heterocyclic ring (indacenodithiopheno-indacenodithiophene) with a narrow band gap (∼1.5 eV) was designed and synthesized. It possesses excellent planarity and enhanced effective conjugation length compared to previously reported fused-ring electron acceptors. When this acceptor was paired with PTB7-Th and applied in polymer solar cells, a power conversion efficiency of 6.5% was achieved with a high open circuit voltage of 0.94 V. More significantly, an energy loss as low as 0.59 eV and an external quantum efficiency as high as 63% were obtained simultaneously.

Graphical abstract: Non-fullerene acceptor with low energy loss and high external quantum efficiency: towards high performance polymer solar cells

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Publication details

The article was received on 22 jan. 2016, accepted on 17 feb. 2016 and first published on 22 feb. 2016


Article type: Paper
DOI: 10.1039/C6TA00612D
Citation: J. Mater. Chem. A, 2016,4, 5890-5897
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    Non-fullerene acceptor with low energy loss and high external quantum efficiency: towards high performance polymer solar cells

    Y. Li, X. Liu, F. Wu, Y. Zhou, Z. Jiang, B. Song, Y. Xia, Z. Zhang, F. Gao, O. Inganäs, Y. Li and L. Liao, J. Mater. Chem. A, 2016, 4, 5890
    DOI: 10.1039/C6TA00612D

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