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Issue 17, 2016
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Bis(perylene diimide) with DACH bridge as non-fullerene electron acceptor for organic solar cells

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Abstract

In this paper, we designed, synthesized, and characterized a set of non-fullerene small molecules based on bis(perylene diimide) with DACH bridge. Theoretical calculations make clear that the introduction of the DACH bridge into PPDI forms a U-shape framework, with pi–pi interactions between PDIs. We investigate the performances of non-fullerene solar cells comprising racemic and enantiomerically pure DACH-PPDIs as the electron acceptor and PTB7-Th as the electron donor. As a consequence, a power conversion efficiency (PCE) of 4.68% is achieved with inverted device architecture. Furthermore, the device behaviour, morphological feature and charge transport properties were also investigated. It is a potential way to design highly efficient non-fullerene organic solar cell by tuning the structure of PDI to reach highly efficient photovoltaic performances.

Graphical abstract: Bis(perylene diimide) with DACH bridge as non-fullerene electron acceptor for organic solar cells

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Supplementary files

Article information


Submitted
15 Dec 2015
Accepted
21 Jan 2016
First published
26 Jan 2016

RSC Adv., 2016,6, 14027-14033
Article type
Paper

Bis(perylene diimide) with DACH bridge as non-fullerene electron acceptor for organic solar cells

G. Gao, X. Zhang, D. Meng, A. Zhang, Y. Liu, W. Jiang, Y. Sun and Z. Wang, RSC Adv., 2016, 6, 14027
DOI: 10.1039/C5RA26777C

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