POSITRON LIFETIME INVESTIGATIONS OF DIAMOND FILMS

被引：14

作者：

DANNEFAER, S

BRETAGNON, T

KERR, D

机构：

[1] Department of Physics, University of Winnipeg, Winnipeg

来源：

关键词：

D O I：

10.1016/0925-9635(93)90016-U

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Positron lifetime investigations on B-doped and undoped chemical vapor deposition diamond films have shown that B-doping at 500 ppm almost completely removes vacancies from the film. The 1.68 eV photo luminescence (PL) line is also removed. For undoped films, large concentrations (almost-equal-to 10(18) cm-3) of Vacancy clusters (approximately 6 vacancies) and mono- or divacancies are observed. Small observable effects arising. from annealing up to 1100-degrees-C could be found in both B-doped or undoped films. There is no correlation between the width of the 1.68 eV PL line and the vacancy concentration.

引用

页码：1479 / 1482

页数：4

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