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纳米粉预处理的CVD金刚石薄膜成核与生长研究

邵乐喜a; 谢二庆a; 贺德衍a; 陈光华ab; 徐康c   

  1. a兰州大学物理系;兰州 730000; b北京工业大学应用物理系 北京 100022; c中国科学院化学物理研究所, 兰州 730000
  • 收稿日期:1998-01-20 修回日期:1998-02-27 出版日期:1998-12-20 网络出版日期:1998-12-20

Nucleation and Growth of CVD Diamond Films on Smooth SiSubstrate Pretreated by Nanodiamond Powders

SHAO Le-Xia; XIE Er-Qinga; HE De-Yana; CHEN Guang-Huaab; XU Kangc   

  1. aDepartment of Physics; Langzhou University Lanzhou 730000 China; bDepartment of Applied Physics; Beijing Polytechnic University Beijing 100022 China; cInstitute of Chemistry and Physics; Chinese Academy of Sciences Lanzhou 730000 China
  • Received:1998-01-20 Revised:1998-02-27 Published:1998-12-20 Online:1998-12-20

摘要: 研究了纳米金刚石粉预处理的光滑硅衬底上CVD金刚石薄膜的成核与生长.通过与研磨处理样品相比较,纳米金刚石的预处理极大地提高了成核密度(可达109/cm2)、成核速度与成膜质量,并能方便地进行成核密度的控制,是一种经济实用、简单有效的预处理方法.

关键词: CVD金刚石, 成核, 衬底预处理, 纳米金刚石粉

Abstract: Ultradispersed nanodiamond powder synthesized by explosive detonation was used for the pretreatment of mirror Si substrate for nucleation and growth of diamond by microwave plasma-CVD. Compared with the scratching pretreatment,
it is found that the pretreatment method by coating substrate with the slurry loading nanodiamond powder not only enhances both of density (up to 109 cm-2
and nucleation rate, improving the quality of grown-up film greatly, but also controls nucleation easily. In addition, this pretreatment is also very
cost-effective, non-damaging, and reproducible as well.

Key words: CVD diamond,nucleation,pretreatment of substrate,nanodiamond powder

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