Issue 7, 2017

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

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

Article information

Article type
Review Article
Submitted
30 sep 2016
Accepted
30 jan 2017
First published
06 feb 2017

Mater. Chem. Front., 2017,1, 1291-1303

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, 1, 1291 DOI: 10.1039/C6QM00247A

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