Influence of thermocleavable functionality on organic field-effect transistor performance of small molecules

TitleInfluence of thermocleavable functionality on organic field-effect transistor performance of small molecules
Publication TypeJournal Article
Year of Publication2017
AuthorsMahale, RY, Dharmapurikar, SS, Chini, MKumar, Venugopalan, V
JournalChemical Physics Letters
Volume678
Pagination139-145
Date PublishedJUN
AbstractDiketopyrrolopyrrole based donor-acceptor-donor conjugated small molecules using ethylene dioxythiophene as a donor was synthesized. Electron deficient diketopyrrolopyrrole unit was substituted with thermocleavable (tert-butyl acetate) side chains. The thermal treatment of the molecules at 160 degrees C eliminated the tert-butyl ester group results in the formation of corresponding acid. Optical and theoretical studies revealed that the molecules adopted a change in molecular arrangement after thermolysis. The conjugated small molecules possessed p-channel charge transport characteristics in organic field effect transistors. The charge carrier mobility was increased after thermolysis of tert-butyl ester group to 5.07 x 10(-5) cm(2)/Vs. (C) 2017 Elsevier B.V. All rights reserved.
DOI10.1016/j.cplett.2017.04.041
Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)1.86
Divison category: 
Polymer Science & Engineering

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