Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Organic Semiconducting Thin Films Fabricated by Using a Pre-metered Coating Method for Organic Thin Film Transistors

정량 주입(Pre-metered) 코팅 방식을 이용한 유기 트랜지스터 반도체 박막 제작 연구

  • Cho, Chan-Youn (Department of Electrophysics, Kwangwoon University) ;
  • Jeon, Hong-Goo (Department of Electrophysics, Kwangwoon University) ;
  • Choi, Jin-Sung (Department of Electrophysics, Kwangwoon University) ;
  • Kim, Yun-Ki (Department of Electrophysics, Kwangwoon University) ;
  • Lim, Jong-Sun (Korea Research Institute of Chemical Technology Advanced Materials Division) ;
  • Jung, J. (Korea Research Institute of Chemical Technology Advanced Materials Division) ;
  • Cho, Song-Yun (Korea Research Institute of Chemical Technology Advanced Materials Division) ;
  • Lee, Chang-Jin (Korea Research Institute of Chemical Technology Advanced Materials Division) ;
  • Park, Byoung-Choo (Department of Electrophysics, Kwangwoon University)
  • Received : 2012.05.15
  • Accepted : 2012.06.24
  • Published : 2012.07.01
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Abstract

We herein present results of flat and uniform polymer-blended small molecular semiconductor thin films. Which were produced for organic thin film transistors (OTFTs), using a simple pre-metered horizontal dipping process. The organic semiconducting thin films were composed of 6,13-bis(triisopropylsilylethynyl)-pentacene (TIPS-PEN) composite blended with a polymer binder of poly(${\alpha}$-methylstyrene) (PaMS). We show that the pre-metered horizontal-dip-coating(H-dip-coating) process allowed the critical control of the thickness of the blended TIPS-PEN:PaMs thin film. The fabricated OTFTs using the TIPS-PEN:PaMs films exhibited maximum field-effect mobility of $0.22\;cm^2\;V^{-1}\;s^{-1}$. These results demonstrated that H-dip-coated TIPS-PEN:PaMS films show considerable promise for the production of reliable, reproducible, and high-performance OTFTs.

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References

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