Crowning of dibenzosilole with a naphthalenediimide functional group to prepare an electron acceptor for organic solar cells

Gupta, Akhil, Hangarge, Rahul V., Wang, Xizu, Alford, Ben, Chellapan, Vijila, Jones, Lathe A., Rananaware, Anushri, Bilic, Ante, Sonar, Prashant, & Bhosale, Sheshanath V. (2015) Crowning of dibenzosilole with a naphthalenediimide functional group to prepare an electron acceptor for organic solar cells. Dyes and Pigments, 120, pp. 314-321.

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A novel, solution-processable non-fullerene electron acceptor 9,9′-(5,5-dioctyl-5H-dibenzo [b,d]silole-3,7-diyl)bis(2,7-dioctyl-4-(octylamino)benzo[lmn][3,8]phenanthroline-1,3,6,8(2H,7H)-tetraone) (B3) based on dibenzosilole and naphthalenediimide building blocks was designed, synthesized, characterized and successfully used in a bulk-heterojunction organic solar cell. B3 displayed excellent solubility, thermal stability and acquired electron energy levels matching with those of archetypal donor polymer poly(3-hexylthiophene). Solution-processable bulk-heterojunction devices afforded 1.16% power conversion efficiency with a high fill factor of 53%. B3 is the first example in the literature using this design principle, where mild donor units at the peripheries of end-capped naphthalenediimide units tune solubility and optical energy levels simultaneously.

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3 citations in Scopus
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4 citations in Web of Science®

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ID Code: 87327
Item Type: Journal Article
Refereed: Yes
DOI: 10.1016/j.dyepig.2015.04.033
ISSN: 0143-7208
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2015 PergamonPress
Deposited On: 14 Sep 2015 06:29
Last Modified: 23 Oct 2016 04:34

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