한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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New Organic Semiconductors for Stable, High-Performance Organic Thin-Film Transistors

  • Takimiya, Kazuo (Dept. of Applied Chemistry, Graduate School of Engineering, Hiroshima University) ;
  • Miyazaki, Eigo (Dept. of Applied Chemistry, Graduate School of Engineering, Hiroshima University) ;
  • Yamamoto, Tatsuya (Dept. of Applied Chemistry, Graduate School of Engineering, Hiroshima University) ;
  • Izawa, Takafumi (Dept. of Applied Chemistry, Graduate School of Engineering, Hiroshima University)
  • Published : 2008.10.13
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Abstract

Novel sulfur-containing aromatic compounds were developed as stable, high-performance organic semiconductors for OTFT applications. Of them, dinaphtho[2,3-b:2',3'-f]thieno[3,2-b]thiophene (DNTT) consisting of six aromatic rings gave high quality thin films by vapor deposition, which acted as a superior FET channel showing FET mobility as high as $3.0\;cm^2V^{-1}s^{-1}$. On the other hand, highly soluble 2,7-dialkyl[1]benzothieno[3,2-b][1]benzothiophenes ($C_n$-BTBTs) gave solution-processible OTFTs with FET mobility higher than $1.0\;cm^2V^{-1}s^{-1}$.

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