Vapor Deposition Polymerization of a Polyimide Containing Perylene Units Characterized by Displacement Current Measurement

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概要

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• Polyimide thin films that have perylene units in the main chain were prepared by vapor deposition polymerization of 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA) and 1,12-diaminododecane (DADD). Codeposition of PTCDA and DADD formed thin films of polyamic acid, which was converted to polyimide by annealing in air. The PTCDA-DADD polyimide thin films have uniform amorphous structure in contrast to the PTCDA evaporated films that have polycrystalline grains. Optical absorption and photoluminescence characteristics suggested that the intermolecular interactions can be reduced and luminescence quenching can be avoided by forming the polyimide. Electrical characterization showed that the polyimide film has lower conductivity than the PTCDA monomer film. The displacement current was measured for an aluminum/polyimide/Teflon AF diode on an indium-tin oxide substrate. The result suggested that the PTCDA-DADD polyimide has electron-transporting properties. The measurement also suggested presence of electron traps.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2005-04-15

著者

• Usui Hiroaki

  Department Of Material Systems Engineering Tokyo University Of Agriculture And Technology

• Tanaka Kuniaki

  Department Of Biological Science Faculty Of Agriculture Shizuoka University

• Watanabe Megumi

  Department Of Applied Chemistry Faculty Of Engineering Kumamoto University

• Watanabe Megumi

  Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan

• Usui Hiroaki

  Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan

• Arai Chizuru

  Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan

• Hibi Katsusuke

  Department of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan

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