Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

High Performance Organic Phototransistors Based on Soluble Pentacene

용액형 유기반도체를 이용한 고성능 포토트랜지스터

  • Kim, Y.H. (Information Display Research Center, Korea Electronics Technology Institute) ;
  • Lee, Y.U. (Information Display Research Center, Korea Electronics Technology Institute) ;
  • Han, J.I. (Information Display Research Center, Korea Electronics Technology Institute) ;
  • Han, S.M. (School of Electrical Engineering and Computer Science, Seoul National University) ;
  • Han, M.K. (School of Electrical Engineering and Computer Science, Seoul National University)
  • 김영훈 (전자부품연구원 디스플레이연구센터) ;
  • 이용욱 (전자부품연구원 디스플레이연구센터) ;
  • 한정인 (전자부품연구원 디스플레이연구센터) ;
  • 한상면 (서울대학교 전기컴퓨터공학부) ;
  • 한민구 (서울대학교 전기컴퓨터공학부)
  • Published : 2007.11.02
Download PDF
⟨ Previous Next ⟩

Abstract

A high performance organic phototransistor with dynamic range of 120 dB is demonstrated by employing soluble pentacene as a photo-sensing layer. The organic phototransistor used suspended source/drain (SSD) electrode structure, which provides a dark current level of ${\sim}10^{-14}$ A at positive gate bias. Under a steady-state illumination, the organic phototransistor exhibited a current modulation of $10^6$ compared to dark to give a dynamic range of 120 dB. These results suggest that the organic phototransistor based on TIPS pentacene can be a new premising candidate for low-cost and high-performance photo-sensing element for digital imaging applications.

Keywords