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Issue 22, 2019
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A versatile star-shaped organic semiconductor based on benzodithiophene and diketopyrrolopyrrole

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Abstract

We report the synthesis of a new star-shaped π-conjugated oligomer, BDT(DPP)4, containing a benzodithiophene core and four diketopyrrolopyrrole arms. The thermal, electrochemical and optical properties are characterized and the results complemented by computational studies. The utility of the molecule is demonstrated in both solar cell and field-effect transistor devices. In the former, BDT(DPP)4 displays low efficiency when used as an acceptor in blends with poly(3-hexylthiophene) but exhibits promising performance as a donor, in blends with either a fullerene or a non-fullerene acceptor. In field-effect transistors BDT(DPP)4 exhibits typical p-type transistor behavior, which is in accordance with its better donor performance in solar cell devices.

Graphical abstract: A versatile star-shaped organic semiconductor based on benzodithiophene and diketopyrrolopyrrole

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Supplementary files

Article information


Submitted
15 Feb 2019
Accepted
01 Apr 2019
First published
01 Apr 2019

J. Mater. Chem. C, 2019,7, 6622-6629
Article type
Paper

A versatile star-shaped organic semiconductor based on benzodithiophene and diketopyrrolopyrrole

Q. He, M. Shahid, J. Panidi, A. V. Marsh, W. Huang, M. Daboczi, J. Kim, Z. Fei, T. D. Anthopoulos and M. Heeney, J. Mater. Chem. C, 2019, 7, 6622
DOI: 10.1039/C9TC00905A

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