Vacancies in polycrystalline diamond films

被引：52
|
作者：
Dannefaer, S [1 ]
Zhu, W [1 ]
Bretagnon, T [1 ]
Kerr, D [1 ]
机构：
[1] AT&T BELL LABS,MURRAY HILL,NJ 07974
来源：
PHYSICAL REVIEW B | 1996年 / 53卷 / 04期
关键词：
D O I：
10.1103/PhysRevB.53.1979
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Positron-lifetime spectroscopy has been performed in concert with photoluminescence to investigate vacancy-related point defects in polycrystalline diamond films grown by chemical vapor deposition (CVD). Undoped films extensively contain vacancies including monovacancies, divacancies, and vacancy clusters. They are distributed inhomogeneously throughout the films with some crystallites nearly free of vacancies while others contain high concentrations (> 50 ppm). However, boron doping dan dramatically reduce the vacancy content in diamond films. The vacancy-related defects are stable up to 1100 degrees C. The different luminescence peaks can be related to various types of vacancies present in CVD diamond.
引用
收藏
页码：1979 / 1984
页数：6
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