Issue 33, 2017

New small-molecule acceptors based on hexacyclic naphthalene(cyclopentadithiophene) for efficient non-fullerene organic solar cells

Abstract

A series of new non-fullerene small molecule acceptors (NTIC, NTIC-Me, NTIC-OMe and NTIC-F) based on the acceptor–donor–acceptor (A–D–A) architecture, using hexacyclic naphthalene-(cyclopentadithiophene) as the central unit, were designed and synthesized. The non-fullerene OSC device based on PBDB-T:NTIC showed a highest PCE of 8.63%. With a relatively high-lying LUMO level of NTIC-OMe, the PBDB-T:NTIC-OMe based device obtained a comparatively high Voc of 0.965 V and a PCE of 8.61% simultaneously. The results demonstrate that the naphthalene core is a promising building block for constructing highly efficient non-fullerene acceptors and further boosting the photovoltaic performance of the devices.

Graphical abstract: New small-molecule acceptors based on hexacyclic naphthalene(cyclopentadithiophene) for efficient non-fullerene organic solar cells

Supplementary files

Article information

Article type
Communication
Submitted
05 júl. 2017
Accepted
26 júl. 2017
First published
27 júl. 2017

J. Mater. Chem. A, 2017,5, 17204-17210

New small-molecule acceptors based on hexacyclic naphthalene(cyclopentadithiophene) for efficient non-fullerene organic solar cells

Y. Yi, H. Feng, M. Chang, H. Zhang, X. Wan, C. Li and Y. Chen, J. Mater. Chem. A, 2017, 5, 17204 DOI: 10.1039/C7TA05809H

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