Current Reduction Mechanism in Organic Thin Film Transistors

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概要

• 論文の詳細を見る

• Hidden origin of current reduction mechanism in organic thin film transistor (OTFT) structure is investigated based on a device simulation, which makes it possible to derive current–voltage ($I$–$V$) characteristics, potential distribution and carrier concentration inside a device by solving Poisson's equation and continuity equation. It is made clear that the device performances improve more than twice to three hundred times only by inserting high impurity concentration layer under the source/drain contact region. The cause of the inferior characteristics of conventional OTFT devices is attributed to the deficiency of carriers in the channel region, resulting to a very high potential drop at the source–channel interface, thus leading to an apparent decrease of carrier mobility. These results clearly indicate the direction of OTFT technology development, i.e., development of high carrier concentration, or heavily doped organic semiconductor materials.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2010-04-25

著者

• WADA Yasuo

  Bio-Nano Electronics Research Center, Toyo University

• Tsutsui Ken

  Bio-Nano Electronics Research Center, Toyo University, Kawagoe, Saitama 350-8585, Japan

• Ishikawa Yoshinori

  Bio-Nano Electronics Research Center, Toyo University, 2100 Kujirai, Kawagoe, Saitama 350-8585, Japan

• Yasuo Wada

  Bio-Nano Electronics Research Center, Toyo University, Kawagoe, Saitama 350-8585, Japan

• Toru Toyabe

  Bio-Nano Electronics Research Center, Toyo University, Kawagoe, Saitama 350-8585, Japan

• Yoshinori Ishikawa

  Bio-Nano Electronics Research Center, Toyo University, Kawagoe, Saitama 350-8585, Japan

関連論文

• A Proposal of High Performance and Highly Fabricable Complementary Organic Thin Film Transistor Structure
• Fabrication and Characterization of Decanedithiol Molecular Junction Using Nanogap Electrodes
• Hall-effect Measurement of Organic Semiconductor Layers Using Micro-scale Electrode Chips (特集 有機半導体 : 材料・デバイス・評価技術)
• Current Reduction Mechanism in Organic Thin Film Transistors

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