[20a-D102-1~11] 12.4 Organic light-emitting devices and organic transistors

[20a-D102-6] Time domain Reflectometry on Pentacene TFT for Time-resolved Analysis of Carrier Injection

〇Hiroaki Murakami¹, Masatoshi Sakai¹, Yugo Okada², Hiroshi Yamauchi¹, Yuichi Sadamitsu³, Yuta Hashimoto³, Kazuhiro Kudo¹ (1.Dept. of Electrical and Electronic Eng., Chiba Univ., 2.Center for Frontier Science, Chiba Univ., 3.Nippon Kayaku Co., Ltd.)

Keywords:Time Domain Reflectometry, Carrier injection

We propose time domain reflectometry to measure the carrier injection process of organic semiconductor transistor. In this method, a rectangular wave is sent to the sample and the instantaneous impedance is obtained from the waveform of the reflected wave. In this study, we analyzed time evolution of the impedance due to the carrier injection in the pentacene TFT structure and we will discuss the carrier injection dynamics both in the thickness direction and in-plane direction.