A STUDY ON THE ELECTRICAL CHARACTERISTICS IMPROVEMENTS OF PENTACENE-BASED ORGANIC THIN FILM TRANSISTORS

Pentacene을 이용한 유기 TFT의 전기적 특성 향상에 관한 연구

In this work the electrical characteristics of organic TFTs with the semiconductor-insulator interfaces have been interested. Pentacene is used as an active semiconducting layer. The semiconductor layer of pentacene was thermally evaporated in vacuum at a pressure of about $2{\times}10^{-6}$ Torr and at a deposition rate of 0.3$\AA$/sec. Aluminium and gold were used for gate and source/drain electrodes. before pentacene is deposited on the insulator, the gate dielectric surfaces of two samples were rubbed with lateral and perpendicular to direction of the channel length respectively.