Polarity-controlled Growth of GaN by MOVPE and RF-MBE

Yoshikawa A; Xu K; Jia A W; Takahashi K

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Polarity-controlled Growth of GaN by MOVPE and RF-MBE

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- Polarity-controlled Growth of GaN by MOVPE and RF-MBE
- Chinese Journal of Luminescence Vol. 22, Issue 4, Pages: 324-328(2001)
- 作者机构：
  
  1. Center for Frontier Electronics and Photonics, Chiba, University VBL
  2. Department of Electronics and Mechanical Engineering, Chiba University 1-33, Yayoi-cho, Inage-, Chiba ku,Japan
  3. Department of Media Science, Teikyo University of Science and Technology,Japan
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN312.8
- Received：20 July 2001，
  
  Revised：2001-3-17，
  
  Published：30 November 2001
- 稿件说明：
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Yoshikawa A, Xu K, Jia A W, Takahashi K . 用MOVPE和RF-MBE方法极性控制生长GaN[J]. 发光学报, 2001,22(4): 324-328

Yoshikawa A, Xu K, Jia A W, Takahashi K. Polarity-controlled Growth of GaN by MOVPE and RF-MBE[J]. Chinese Journal of Luminescence, 2001,22(4): 324-328
Yoshikawa A, Xu K, Jia A W, Takahashi K . 用MOVPE和RF-MBE方法极性控制生长GaN[J]. 发光学报, 2001,22(4): 324-328 DOI：

Yoshikawa A, Xu K, Jia A W, Takahashi K. Polarity-controlled Growth of GaN by MOVPE and RF-MBE[J]. Chinese Journal of Luminescence, 2001,22(4): 324-328 DOI：

摘要

本文报道了用低压MOVPE和RF-分子束外延法在蓝宝石衬底上作极性控制的GaN生长.以“双Al单层”模型讨论了用MOVPE和MBE法在蓝宝石衬底上生长GaN的极性选择的机理

并对AlN在极性转换过程中的作用给出了适当的解释.通过极性控制的生长

使MBE法生长的GaN的表面形貌和电学特性都得到了改善;并对LP-MOVPE生长开发出了一种“三步生长法”

这样就可以用更多的外延方式在蓝宝石衬底上生长出高质量的GaN膜.

Abstract

In the present work

the polarity-controlled growth of GaN on sapphire substrate by LP-MOVPE and RF-MBE is demonstrated.The mechanisms for polarity selection of GaN on sapphire substrate both in MOVPE and MBE growth are discussed based on the "two monolayers of Al" model

which also gives a reasonable explanation to the polarity reversion mechanism by AlN.Through the polarity-controlled growth

surface morphology and electrical property of GaN grown by RF-MBE is improved;a three-step growth method is developed for LP-MOVPE

so that high quality GaN films can be obtained in a more epitaxial way on sapphire substrate.

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