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2008 Fiscal Year Final Research Report

Growth of GaN thin film and fabrication of vertical light emitting diode using CrN nano-crystalline buffer layer

Research Project

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Project/Area Number 19560008
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied materials science/Crystal engineering
Research InstitutionTohoku University

Principal Investigator

HANADA Takashi  Tohoku University, 金属材料研究所, 助教 (80211481)

Co-Investigator(Kenkyū-buntansha) HANADA Takashi  東北大学, 金属材料研究所, 助教 (80211481)
Project Period (FY) 2007 – 2008
Keywords薄膜成長 / 光素子 / 窒化物半導体
Research Abstract

サファイヤc面基板上に高品質GaNを成長するためCrNバッファ層を導入した。CrN層は過塩素酸ベースの混合溶液で選択的に化学エッチングされ、GaN自立膜を基板からケミカルリフトオフ(CLO)できた。CLOプロセスによるダメージの導入はなく、縦型GaN-LEDを作製し電流注入発光を観測した。CLOにより複数基板からのLED剥離は一括処理でき、基板は再利用できるため、従来のGaN-LED作製法に比べ大幅なコスト低減が可能となる。

  • Research Products

    (2 results)

All 2009 2008

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (1 results)

  • [Journal Article] Lattice strain in bulk GaN epilayers grown on CrN/sapphire template2009

    • Author(s)
      S. W. Lee, J. S. Ha, Hyun-Jae Lee, Hyo-Jong Lee, H. Goto, T. Hanada, T. Goto, K. Fujii, M. W. Cho, and T. Yao
    • Journal Title

      Appl. Phys. Lett 94

      Pages: 082105-1-3

    • Peer Reviewed
  • [Presentation] Crystallo -graphic Investigation of Nitride C- Sapphire Substrate by Grazing Incidence X-ray Diffraction and Transmission Electron Microscopy2008

    • Author(s)
      H. J. Lee, J. S. Ha, S. K. Hong, S. W. Lee, H. J. Lee, S. H. Lee, T. Minegishi, T. Hanada, M. W. Cho, and T. Yao
    • Organizer
      The International Conference on the Textures of Materials
    • Place of Presentation
      Pittsburgh, USA
    • Year and Date
      20080601-06

URL: 

Published: 2010-06-10   Modified: 2016-04-21  

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