High-Performance Non-Fullerene Polymer Solar Cells Based on a Pair of Donor-Acceptor Materials with Complementary Absorption Properties.

Lin, Haoran; Chen, Shangshang; Li, Zhengke; Lai, Joshua Yuk Lin; Yang, Guofang; McAfee, Terry; Jiang, Kui; Li, Yunke et al. · Adv Mater · 2015

basic_science · Level V

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Abstract

A 7.3% efficiency non-fullerene polymer solar cell is realized by combining a large-bandgap polymer PffT2-FTAZ-2DT with a small-bandgap acceptor IEIC. The complementary absorption of donor polymer and small-molecule acceptor is responsible for the high-performance of the solar-cell device. This work provides important guidance to improve the performance of non-fullerene polymer solar cells.

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