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Regular Conjugated Terpolymers Comprising Two Different Acceptors and Bithiophene Donor in Repeating Group: Effect of Strong and Weak Acceptors on Semiconducting Properties

Authors
Mai Ha HoangAhn, Jong-SooDuc Nghia NguyenTrinh Tung NgoLee, Dae HeeCho, Min JuChoi, Dong Hoon
Issue Date
15-5월-2016
Publisher
WILEY
Keywords
conjugated polymer; diketopyrrolopyrrole; organic thin film transistor; polymer solar cell; terpolymer
Citation
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, v.54, no.10, pp.1339 - 1347
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
Volume
54
Number
10
Start Page
1339
End Page
1347
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/88650
DOI
10.1002/pola.27979
ISSN
0887-624X
Abstract
Diketopyrrolopyrrole (DPP)-based terpolymers-P(DPP-TPyT) and P(DPP-T3MTT)-bearing bithiophene donating groups and weak accepting units such as pyridine (Py) or methyl thiophene-3-carboxylate (3MT), in the polymer backbone, were successfully synthesized. Although the two polymers had similar physical and electrochemical properties, grazing incidence X-ray diffraction patterns of P(DPP-TPyT) and P(DPP-T3MTT) showed mixed and edge-on orientations, respectively, in thermally annealed films. Accordingly, the P(DPP-T3MTT) showed twice the hole mobility of P(DPP-TPyT) in a thin-film transistor, and a blended film of P(DPP-T3MTT) and [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) showed better power conversion efficiency in a polymer solar cell. (C) 2015 Wiley Periodicals, Inc.
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