Laminated Transparent Conducting Thin Films Prepared by Pulsed Laser Deposition.

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  • SUZUKI Akio
    Department of Electrical Engineering and Electronics, College of Engineering, Osaka Sangyo University
  • FURIKI Masanari
    Department of Electrical Engineering and Electronics, College of Engineering, Osaka Sangyo University
  • AOKI Takanori
    Department of Electrical Engineering and Electronics, College of Engineering, Osaka Sangyo University
  • MATSUSHITA Tatsuhiko
    Department of Electrical Engineering and Electronics, College of Engineering, Osaka Sangyo University
  • OKUDA Masahiro
    Department of Physics and Electronics, College of Engineering, Osaka Prefecture University

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Other Title
  • パルスレーザー堆積法を用いて作製した積層型透明導電膜
  • パルスレーザー タイセキホウ オ モチイテ サクセイ シタ セキソウガタ トウメイ ドウデン マク

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Abstract

There are many unsettled questions for transparent conducting ITO thin films if used as electronic devices : expensive and weak in durability to reduction gas. In order to improve these disadvantageous points, AZO (ZnO : Al2O3) was deposited on the ITO layer by PLD method and laminated transparent conducting films with a structure of ITO + AZO were prepared. It was found that if the film thickness of the upper AZO layer increased, the sheet resistance decreased. At the same time, the increase of averaged transmittance in the visible wavelength region (400700 nm) due to an anti-reflection effect caused by two layer structure of ITO +AZO was recognized. Moreover, it was found from SEM and AFM observations that the surface randomness was improved from 4.54 nm for the ITO single layer to 2.89 nm for the ITO + AZO (120 nm) structure.

Journal

  • Shinku

    Shinku 43 (3), 268-272, 2000

    The Vacuum Society of Japan

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