Naphthodithiophene-Diketopyrrolopyrrole-Based Donor-Acceptor Alternating pi-Conjugated Polymers for Organic Thin-Film Transistors
- Authors
- Lee, Tae Wan; Lee, Dae Hee; Shin, Jicheol; Cho, Min Ju; Choi, Dong Hoon
- Issue Date
- 15-12월-2013
- Publisher
- WILEY-BLACKWELL
- Keywords
- charge transfer; conjugated polymers; copolymer; diketopyrrolopyrrole; films; naphtodithiophene; organic thin-film transistor; thin films; semiconductor; synthesis
- Citation
- JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, v.51, no.24, pp.5280 - 5290
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
- Volume
- 51
- Number
- 24
- Start Page
- 5280
- End Page
- 5290
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/101288
- DOI
- 10.1002/pola.26960
- ISSN
- 0887-624X
- Abstract
- Novel naphtho[1,2-b:5,6-b]dithiophene (NDT) and diketopyrrolopyrrole (DPP)-containing donor-acceptor conjugated polymers (PNDTDPPs) with different branched side chains were synthesized via Pd(0)-catalyzed Stille coupling reaction. Octyldodecyl (OD) and dodecylhexadecyl (DH) groups were tethered to the DPP units as the side chains. The soluble fraction of PNDTDPP-OD polymer in chloroform has much lower molecular weight than that of PNDTDPP-DH polymer. PNDTDPP-DH polymer bearing relatively longer DH side chains exhibited much better charge-transport behavior than PNDTDPP-OD polymer with shorter OD side chains. The thermally annealed PNDTDPP-DH polymer thin films exhibited an outstanding charge carrier mobility of approximate to 1.32 cm(2) V-1 s(-1) (I-on/I-off approximate to 10(8)) measured under ambient conditions, which is almost six times higher than that of thermally annealed PNDTDPP-OD polymer thin films. (c) 2013 Wiley Periodicals, Inc.
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