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Issue 33, 2017
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New small-molecule acceptors based on hexacyclic naphthalene(cyclopentadithiophene) for efficient non-fullerene organic solar cells

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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

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Publication details

The article was received on 05 Jul 2017, accepted on 26 Jul 2017 and first published on 27 Jul 2017


Article type: Communication
DOI: 10.1039/C7TA05809H
Citation: J. Mater. Chem. A, 2017,5, 17204-17210
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    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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