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
11 شوال 1438
Accepted
03 ذو القعدة 1438
First published
04 ذو القعدة 1438

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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