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    Molecular Engineering of Non-Halogenated Solution-Processable Bithiazole based Electron Transport Polymeric Semiconductors

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    acschemmater5b00173.pdf
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    Type
    Article
    Authors
    Fu, Boyi
    Wang, Cheng-Yin
    Rose, Bradley Daniel cc
    Jiang, Yundi
    Chang, Mincheol
    Chu, Ping-Hsun
    Yuan, Zhibo
    Fuentes-Hernandez, Canek
    Bernard, Kippelen
    Bredas, Jean-Luc cc
    Collard, David M.
    Reichmanis, Elsa
    KAUST Department
    KAUST Solar Center (KSC)
    Laboratory for Computational and Theoretical Chemistry of Advanced Materials
    Material Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2015-04-13
    Online Publication Date
    2015-04-13
    Print Publication Date
    2015-04-28
    Permanent link to this record
    http://hdl.handle.net/10754/350202
    
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    Abstract
    The electron deficiency and trans planar conformation of bithiazole is potentially beneficial for the electron transport performance of organic semiconductors. However, the incorporation of bithiazole into polymers through a facile synthetic strategy remains a challenge. Herein, 2,2’-bithiazole was synthesized in one step and copolymerized with dithienyldiketopyrrolopyrrole to afford poly(dithienyldiketopyrrolopyrrole-bithiazole), PDBTz. PDBTz exhibited electron mobility reaching 0.3 cm2V-1s-1 in organic field-effect transistor (OFET) configuration; this contrasts with a recently discussed isoelectronic conjugated polymer comprising an electron rich bithiophene and dithienyldiketopyrrolopyrrole, which displays merely hole transport characteristics. This inversion of charge carrier transport characteristics confirms the significant potential for bithiazole in the development of electron transport semiconducting materials. Branched 5-decylheptacyl side chains were incorporated into PDBTz to enhance polymer solubility, particularly in non-halogenated, more environmentally compatible solvents. PDBTz cast from a range of non-halogenated solvents exhibited film morphologies and field-effect electron mobility similar to those cast from halogenated solvents.
    Citation
    Molecular Engineering of Non-Halogenated Solution-Processable Bithiazole based Electron Transport Polymeric Semiconductors 2015:150401105405000 Chemistry of Materials
    Publisher
    American Chemical Society (ACS)
    Journal
    Chemistry of Materials
    DOI
    10.1021/acs.chemmater.5b00173
    Additional Links
    http://pubs.acs.org/doi/abs/10.1021/acs.chemmater.5b00173
    ae974a485f413a2113503eed53cd6c53
    10.1021/acs.chemmater.5b00173
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Material Science and Engineering Program; KAUST Solar Center (KSC)

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