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Issue 48, 2018
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Partially removing long branched alkyl side chains of regioregular conjugated backbone based diketopyrrolopyrrole polymer for improving field-effect mobility

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Abstract

The efficient design and synthesis of new tert-butoxycarbonyl (t-Boc) and t-Boc-removed diketopyrrolopyrrole (DPP) polymers with regioregular conjugated backbones via a new route of combining random copolymerization and the classical t-Boc precursor approach are reported. The resulting new type of DPP polymer, named P(40/1)-H, is found to possess good solubility, film-forming ability, and reasonable optoelectronic properties. Importantly, it displays a significantly improved field-effect mobility (∼0.91 cm2 V−1 s−1) as compared to the recognized reference polymer P(100/0) (∼0.56 cm2 V−1 s−1), which indicates partially removing the long branched alkyl side chains of a regioregular conjugated backbone based DPP polymer is an alternative new strategy of molecular design for enhancing field-effect carrier mobility.

Graphical abstract: Partially removing long branched alkyl side chains of regioregular conjugated backbone based diketopyrrolopyrrole polymer for improving field-effect mobility

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Publication details

The article was received on 30 Sep 2018, accepted on 12 Nov 2018 and first published on 16 Nov 2018


Article type: Paper
DOI: 10.1039/C8TC04954H
Citation: J. Mater. Chem. C, 2018,6, 13325-13330
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    Partially removing long branched alkyl side chains of regioregular conjugated backbone based diketopyrrolopyrrole polymer for improving field-effect mobility

    J. Ji, D. Zhou, Y. Tang, P. Deng, Z. Guo, H. Zhan, Y. Yu and Y. Lei, J. Mater. Chem. C, 2018, 6, 13325
    DOI: 10.1039/C8TC04954H

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