Issue 18, 2018

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

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

Supplementary files

Article information

Article type
Communication
Submitted
13 mar 2018
Accepted
19 apr 2018
First published
20 apr 2018

J. Mater. Chem. C, 2018,6, 4873-4877

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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