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Issue 12, 2020
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An oxygen heterocycle-fused fluorene based non-fullerene acceptor for high efficiency organic solar cells

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Abstract

A new acceptor–donor–acceptor (A–D–A) small molecule acceptor, named FCO-2F, is designed and synthesized based on the previous acceptor F-H. By inserting an oxygen atom into the backbone of F-H and fluorination on the end group, FCO-2F shows a much red-shifted absorption compared with F-H, and also a wider absorption up to 830 nm. Using polymer PM6 as the donor, the organic solar cell (OSC) devices based on FCO-2F offer a power conversion efficiency (PCE) of 13.36%, with a much improved short circuit current (Jsc) of 20.90 mA cm−2.

Graphical abstract: An oxygen heterocycle-fused fluorene based non-fullerene acceptor for high efficiency organic solar cells

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Supplementary files

Article information


Submitted
07 May 2020
Accepted
25 May 2020
First published
16 Jun 2020

Mater. Chem. Front., 2020,4, 3594-3601
Article type
Research Article

An oxygen heterocycle-fused fluorene based non-fullerene acceptor for high efficiency organic solar cells

X. Ke, L. Meng, X. Wan, Y. Sun, Z. Guo, S. Wu, H. Zhang, C. Li and Y. Chen, Mater. Chem. Front., 2020, 4, 3594 DOI: 10.1039/D0QM00287A

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