Naphthalene diimide-based non-fullerene acceptors for simple, efficient, and solution-processable bulk-heterojunction devices

Srivani, Doli, Gupta, Akhil, Raynor, Aaron M., Bilic, Ante, Li, Jingliang, Bhosale, Sheshanath V. and Bhosale, Sidhanath V. 2016, Naphthalene diimide-based non-fullerene acceptors for simple, efficient, and solution-processable bulk-heterojunction devices, RSC advances, vol. 6, no. 45, pp. 38703-38708, doi: 10.1039/c6ra05538a.

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Title Naphthalene diimide-based non-fullerene acceptors for simple, efficient, and solution-processable bulk-heterojunction devices
Author(s) Srivani, Doli
Gupta, AkhilORCID iD for Gupta, Akhil orcid.org/0000-0002-1257-8104
Raynor, Aaron M.
Bilic, Ante
Li, JingliangORCID iD for Li, Jingliang orcid.org/0000-0003-0709-2246
Bhosale, Sheshanath V.
Bhosale, Sidhanath V.
Journal name RSC advances
Volume number 6
Issue number 45
Start page 38703
End page 38708
Total pages 6
Publisher Royal Society of Chemistry
Place of publication London, Eng.
Publication date 2016
ISSN 2046-2069
Summary Two solution processable, non-fullerene electron acceptors, 2,2′-(((2,7-dioctyl-1,3,6,8-tetraoxo-1,2,3,6,7,8-exahydrobenzo[lmn][3,8]phenanthroline-4,9-diyl)bis(thiophene-5,2-diyl))bis(methanylylidene))dimalononitrile (R1) and (2Z,2′Z)-3,3′-((2,7-dioctyl-1,3,6,8-tetraoxo-1,2,3,6,7,8-hexahydrobenzo[lmn][3,8]phenanthroline-4,9-diyl)bis(thiophene-5,2-diyl))bis(2-(4-nitrophenyl) acrylonitrile) (R2), comprised of central naphthalene diimide and two different terminal accepting functionalities, malononitrile and 2-(4-nitrophenyl)acetonitrile, respectively, were designed and synthesised. The central and terminal accepting functionalities were connected via a mild conjugated thiophene linker. Both of the new materials (R1 and R2) displayed high thermal stability and were found to have energy levels matching those of the archetypal electron donor poly(3-hexylthiophene). A simple, solution-processable bulk-heterojunction device afforded a promising power conversion efficiency of 2.24% when R2 was used as a non-fullerene electron acceptor along with the conventional donor polymer poly(3-hexylthiophene). To the best of our knowledge, the materials reported herein are the first examples in the literature where synchronous use of such accepting blocks is demonstrated for the design and development of efficient non-fullerene electron acceptors.
Language eng
DOI 10.1039/c6ra05538a
Field of Research 091205 Functional Materials
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Royal Society of Chemistry
Persistent URL http://hdl.handle.net/10536/DRO/DU:30084086

Document type: Journal Article
Collections: Institute for Frontier Materials
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