Organic Field-Effect Transistors Based on Benzodithiophene-Dimer Films

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概要

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• We fabricated organic field-effect transistors (OFETs) based on benzodithiophene (BDT)-dimer films by vacuum evaporation. The surface of the BDT-dimer films deposited on a SiO2 gate insulator was so rough that excellent FET characteristics were not obtained. However, the surface morphology of the films deposited on poly(methyl methacrylate) buffer layers was significantly improved, and dense grains of submicron size were formed. Grain size increased from the submicron scale to the micron scale by reducing growth rate from 0.035 to 0.02 nm/s. The fabricated OFETs have shown p-type FET characteristics with a carrier mobility of 0.016 cm2 V-1 s-1. More importantly, it has been demonstrated that the performance of the BDT-dimer OFET is much more stable in air than that of the pentacene OFET.

• Japan Society of Applied Physicsの論文
• 2007-08-25

著者

• OSUGA Hideji

  Department of Chemistry, Graduate School of Science, Kyoto University

• Nishide Yosuke

  Department Of Material Science And Chemistry Faculty Of Systems Engineering Wakayama University

• Uno Kazuyuki

  Department Of Electronic Science And Engineering Kyoto University

• Nakamoto Chikanobu

  Industrial Technology Center of Wakayama Prefecture

• Yamaguchi Kazuki

  Department Of Anatomy Fukuoka University School Of Medicine

• Tanaka Ichiro

  Department Of Biology Faculty Of Science Nagoya University

• Osuga Hideji

  Department of Materials Science and Chemistry, Wakayama University, 930 Sakaedani, Wakayama 640-8510, Japan

• Nakashima Kensuke

  Department of Materials Science and Chemistry, Wakayama University, 930 Sakaedani, Wakayama 640-8510, Japan

• Takamiya Shota

  Department of Materials Science and Chemistry, Wakayama University, 930 Sakaedani, Wakayama 640-8510, Japan

• Minami Masafumi

  Department of Materials Science and Chemistry, Wakayama University, 930 Sakaedani, Wakayama 640-8510, Japan

• Doge Yuyu

  Department of Materials Science and Chemistry, Wakayama University, 930 Sakaedani, Wakayama 640-8510, Japan

• Tanaka Ichiro

  Department of Materials Science and Chemistry, Wakayama University, 930 Sakaedani, Wakayama 640-8510, Japan

• Nishide Yosuke

  Department of Materials Science and Chemistry, Wakayama University, 930 Sakaedani, Wakayama 640-8510, Japan

• Nakamoto Chikanobu

  Industrial Technology Centre of Wakayama Prefecture, 60 Ogura, Wakayama 649-6261, Japan

• Yamaguchi Kazuki

  Department of Materials Science and Chemistry, Wakayama University, 930 Sakaedani, Wakayama 640-8510, Japan

• Uno Kazuyuki

  Department of Materials Science and Chemistry, Wakayama University, 930 Sakaedani, Wakayama 640-8510, Japan

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