Narayanaswamy, Kamatham and Yadagiri, Bommaramoni and Bagui, Anirban and Gupta, Vinay and Singh, Surya Prakash (2017) Multichromophore Donor Materials Derived from Diketopyrrolopyrrole and Phenoxazine: Design, Synthesis, and Photovoltaic Performance. European Journal of Organic Chemistry, 33. pp. 4896-4904. ISSN 1434-193X

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Herein two conjugated donor molecules, TDPP-POCN and FDPP-POCN, with planar diketopyrrolopyrrole (DPP) as the core building-block acceptor unit and phenoxazine-capped acrylonitriles as arms are designed and synthesized. Solution-processed bulk-heterojunction organic solar cells based on blends of the small-molecule donors and [6,6]-phenyl-C-71-butyric acid methyl ester (PC71BM) exhibit promising photovoltaic device performance with a maximum power conversion efficiency up to 4.8 % for TDPP-POCN and 3.4 % for FDPP-POCN under the illumination of AM1.5G, 100 mW cm(-2). To the best of our knowledge, this is the highest efficiency reported so far in DPP-phenoxazine-based systems and among acrylonitrile-bridged donor-pi-acceptor-pi-donor-structured small-molecule donors for solution-processed small-molecule-based organic solar cells.

Item Type: Article
Additional Information: Copyright for this article belongs to M/s Wiley.
Subjects: Chemistry > Organic Chemistry
Depositing User: Users 27 not found.
Date Deposited: 25 Feb 2019 11:21
Last Modified: 25 Feb 2019 11:21

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