화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.22, No.9, 1012-1017, September, 2014
DOI10.1007/s13233-014-2128-4  Export Citation
New semiconducting copolymers containing alkyl quarterthiophene and alkoxy naphthalene moieties for organic thin film transistors
Hyoung Nam Kim, So Min Park1, Sung Chul Shin†, and Yun-Hi Kim†
  • Department of Chemistry and Research Institute of Natural Science (RINS), Gyeongsang National University, Gyeongnam, 660-701, Korea
  • 1School of Materials Science & Engineering and Research Institute (ERI), Gyeongsang National University, Gyeongnam, 660-701, Korea
E-mail:,
A π-conjugated alkyl quarterthiophene-based copolymer was synthesized by a Suzuki coupling reaction, and its optical, thermal, and electrochemical and organic thin film transistor properties were characterized. The copolymers showed good solubility in common solvents such as chloroform and toluene, etc. The weight average molecular weight (M w ) of PQTHN and PQTON were found to be 9,200 with polydispersity of 1.2 and 30,600 with polydispersity of 2.39, respectively. The structure of PQTHN and PQTON was confirmed using 1H NMR and FTIR spectroscopy. Solution-processed organic thin film transistors (OTFTs) using PQTON exhibited 6.96×10^(-4) cm2V-1s-1 as mobility with an on/off ratio of 2.46×10^(4).
Keywords:π-conjugated copolymer;quarterthiophene;organic thin film transistor
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