Dye-Incorporated Polynaphthalenediimide Acceptor for Additive-Free High-Performance All-Polymer Solar Cells

Angewandte Chemie
Dong ChenYongfang Li

Abstract

All-polymer solar cells (all-PSCs) can offer unique advantages for applications in flexible devices, and naphthalene diimide (NDI)-based polymer acceptors are the widely used polymer acceptors. However, their power conversion efficiency (PCE) still lags behind that of state-of-the-art polymer solar cells, due to low light absorption, suboptimal energy levels and the strong aggregation of the NDI-based polymer acceptor. Herein, a rhodanine-based dye molecule was introduced into the NDI-based polymer acceptor by simple random copolymerization and showed an improved light absorption coefficient, an up-shifted lowest unoccupied molecular orbital level and reduced crystallization. Consequently, additive-free all-PSCs demonstrated a high PCE of 8.13 %, which is one of the highest performance characteristics reported for all-PSCs to date. These results indicate that incorporating a dye into the n-type polymer gives insight into the precise design of high-performance polymer acceptors for all-PSCs.

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Citations

Oct 6, 2018·Chemistry : a European Journal·Huiliang SunXugang Guo
Aug 4, 2019·Chemistry, an Asian Journal·Peng ZhuYong Cao
Sep 12, 2019·Nature Communications·Baobing FanYong Cao
Nov 18, 2018·Advanced Materials·Jungho LeeChangduk Yang
Jun 26, 2020·ACS Applied Materials & Interfaces·Yuxiang LiJianyu Yuan
Jun 8, 2021·Chemical Science·Cory T KornmanRonald K Castellano
Jul 27, 2021·Chemical Society Reviews·Sheshanath V BhosaleSubi George
Jan 9, 2019·ACS Applied Materials & Interfaces·Jing YangErjun Zhou
Jun 12, 2019·Chemical Reviews·Changyeon LeeBumjoon J Kim

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