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New developments in non-fullerene small molecule acceptors for polymer solar cells

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Abstract

During the past two years, non-fullerene electron acceptors for organic solar cells have attracted considerable attention. Significant progress has been made in that the power conversion efficiency of polymer solar cells based on non-fullerene small molecule acceptors now exceeds 12%, exhibiting many advantages over their fullerene counterparts. One of the greatest strengths for NFAs is their tunability via chemical modulation to fine-tune their absorption, energy level and electronic mobility, which is difficult to achieve with fullerene derivatives. This review describes very recent developments of polymer donor:small molecular non-fullerene acceptors in several systems since 2015, including rylene imide, indacenodithiophene and diketopyrrolopyrrole-based small molecular acceptors. Molecular design considerations and structure–property relationships are also discussed.

Graphical abstract: New developments in non-fullerene small molecule acceptors for polymer solar cells

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Publication details

The article was received on 30 Sep 2016, accepted on 30 Jan 2017 and first published on 06 Feb 2017


Article type: Review Article
DOI: 10.1039/C6QM00247A
Citation: Mater. Chem. Front., 2017, Advance Article
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    New developments in non-fullerene small molecule acceptors for polymer solar cells

    N. Liang, W. Jiang, J. Hou and Z. Wang, Mater. Chem. Front., 2017, Advance Article , DOI: 10.1039/C6QM00247A

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