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Issue 18, 2018
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A nonfullerene acceptor utilizing a novel asymmetric multifused-ring core unit for highly efficient organic solar cells

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Abstract

In this communication, a novel asymmetric ladder-type thiophene-phenylene-thieno[3,2-b]thiophene-fused building block TPTT and the corresponding asymmetric nonfullerene acceptor TPTT-IC were reported for the first time. Organic solar cells (OSCs) fabricated with a wide-bandgap polymer PBT1-C as the donor and TPTT-IC as the acceptor yielded a high power conversion efficiency (PCE) of 10.5% with an open-circuit voltage (Voc) of 0.96 V, a short-circuit current (Jsc) of 15.6 mA cm−2 and a fill factor (FF) of 70%, which is the highest PCE value reported in the literature so far for OSCs based on asymmetric nonfullerene acceptor materials.

Graphical abstract: A nonfullerene acceptor utilizing a novel asymmetric multifused-ring core unit for highly efficient organic solar cells

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Supplementary files

Article information


Submitted
13 Mar 2018
Accepted
19 Apr 2018
First published
20 Apr 2018

J. Mater. Chem. C, 2018,6, 4873-4877
Article type
Communication

A nonfullerene acceptor utilizing a novel asymmetric multifused-ring core unit for highly efficient organic solar cells

C. Li, Y. Xie, B. Fan, G. Han, Y. Yi and Y. Sun, J. Mater. Chem. C, 2018, 6, 4873
DOI: 10.1039/C8TC01229F

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