Journal
SYNTHETIC METALS
Volume 180, Issue -, Pages 73-78Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.synthmet.2013.07.019
Keywords
Thieno[3,4-c]pyrrole-4,6-dione; Oxidative polymerization; Organic thin-film transistors
Funding
- National Nature Science Foundation of China (NSFC) [21204017, 61107014, 51103034, 21174036]
- Major State Basic Research Development Program of China [2012CB723406]
- Research Fund for the Doctoral Program of Higher Education of China [20100111120006]
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Thieno[3,4-c]pyrrole-4,6-dione (TPD)-based polymer (PDTTPD) with head-to-head (H-H) linkage of 3-dodecylthiophene unit was synthesized by ferric chloride oxidative polymerization. The polymer was characterized by chemical analysis as well as thermal analysis, optical spectroscopy and cyclic voltammeter. PDTTPD polymer showed excellent thermal stability, had significantly red-shifted of absorption edge by its solid film compared to its solution and a deep highest occupied molecular orbital (HOMO) energy level of -5.82 eV. Polymer thin-film microstructures and morphologies were also investigated through atomic force microscope (AFM) and grazing-incidence X-ray diffraction (GIXD) which showed that the PDTTPD film is composed of rod-like crystalline grains and ordered structures. Organic thin-film transistors (OTFT) with common architectures were fabricated to evaluate OTFT performance and exhibited the preliminary hole mobility of 0.019 cm(-2) V-1 s(-1). (C) 2013 Elsevier B.V. All rights reserved.
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