Alkylated selenophene-based ladder-type monomers via a facile route for high performance thin-film transistor applications

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Title: Alkylated selenophene-based ladder-type monomers via a facile route for high performance thin-film transistor applications
Author(s): Fei, Z
Han, Y
Gann, E
Hodsden, T
Chesman, ASR
McNeill, CR
Anthopoulos, TD
Heeney, MJ
Item Type: Journal Article
Abstract: We report the synthesis of two new selenophene-containing ladder-type monomers, cyclopentadiselenophene (CPDS) and indacenodiselenophene (IDSe), via a 2-fold and 4-fold Pd-catalyzed coupling with a 1,1-diborylmethane derivative. Copolymers with benzothiadiazole were prepared in high yield by Suzuki polymerization to afford materials which exhibited excellent solubility in a range of nonchlorinated solvents. The CPDS copolymer exhibited a band gap of just 1.18 eV, which is among the lowest reported for donor–acceptor polymers. Thin-film transistors were fabricated using environmentally benign, nonchlorinated solvents, with the CPDS and IDSe copolymers exhibiting hole mobility up to 0.15 and 6.4 cm2 V–1 s–1, respectively. This high performance was achieved without the undesirable peak in mobility often observed at low gate voltages due to parasitic contact resistance.
Publication Date: 26-May-2017
Date of Acceptance: 26-May-2017
URI: http://hdl.handle.net/10044/1/48741
DOI: https://dx.doi.org/10.1021/jacs.7b03099
ISSN: 1943-2984
Publisher: American Chemical Society
Start Page: 8552
End Page: 8561
Journal / Book Title: Journal of the American Chemical Society
Volume: 139
Issue: 25
Copyright Statement: © 2017 American Chemical Society. ACS AuthorChoice - This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited (http://pubs.acs.org/page/policy/authorchoice_ccby_termsofuse.html)
Sponsor/Funder: British Council (UK)
EPSRC
Funder's Grant Number: 173601536
EP/L016702/1
Keywords: General Chemistry
03 Chemical Sciences
Publication Status: Published
Appears in Collections:Physics
Chemistry
Experimental Solid State
Faculty of Natural Sciences



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