Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Study on the Characteristics of Organic TFT Using Pentacene as a Active Layer

Pentacene을 활성층으로 이용한 유기 TFT의 특성 연구

  • Kim, Young-Kwan (Dept. of Chemical Engineering, Hongik University) ;
  • Sohn, Byoung-Chung (Dept. of Chemical Engineering, Hongik University) ;
  • Kim, Yun-Myoung (Dept. of Electrical Information & Control Engineering, Hongik University) ;
  • Pyo, Sang-Woo (Dept. of Electrical Information & Control Engineering, Hongik University)
  • 김영관 (홍익대학교 화학공학과) ;
  • 손병청 (홍익대학교 화학공학과) ;
  • 김윤명 (홍익대학교 전기정보제어공학과) ;
  • 표상우 (홍익대학교 전기정보제어공학과)
  • Published : 2001.09.30
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Abstract

Organic semiconductors based on vacuum-deposited films of fused-ring polycyclic aromatic hydrocarbon have great potential to be utilized as an active layer for electronic and optoelectronic devices. In this study, pentacene thin films and electrode materials were deposited by Organic Molecular Beam Deposition (OMBD) and vacuum evaporation respectively. For the gate dielectric layer, photoacryl (OPTMER PC403 from JSR Co.) was spin-coated and cured at $220^{\circ}C$. Electrical characteristics of the device were investigated, where the channel length and width was 50 ${\mu}m$ and 5 mm. It was found that field effect mobility was 0.039 $cm^{2}V^{-1}s^{-1}$, threshold voltage was -8 V, and on/off current ratio was $10^{6}$. Further details will be discussed.

Keywords