COMPARATIVE-STUDY OF MICROCRYSTALLINE DIAMOND

被引：21

作者：

OBRAZTSOV, AN ^{[1
]}

TIMOFEYEV, MA ^{[1
]}

GUSEVA, MB ^{[1
]}

BABAEV, VG ^{[1
]}

VALIULLOVA, ZK ^{[1
]}

BABINA, VM ^{[1
]}

机构：

[1] MOSCOW MV LOMONOSOV STATE UNIV,DEPT PHYS,MOSCOW 119899,RUSSIA

来源：

关键词：

DC PLASMA CVD; DIAMOND DEFECTS; RAMAN SPECTROSCOPY; STRESS;

D O I：

10.1016/0925-9635(94)00264-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Raman spectra of diamond powders and polycrystalline CVD diamond films with diamond crystalline size from 4 mu m to 5 nm have been measured as a function of the crystallite size. The Raman diamond line at 1332 cm(-1) was found for the powder to become more asymmetric with decreasing particle size to 5 nm. A strong influence of substrate temperature and methane-hydrogen gas mixture pressure during diamond films growth by the d.c. glow discharge method on linewidths and peak position have been found. The observed results are explained by ''phonon confinement'' and by strain effects. CVD and laser-evaporated nanophase diamond films were produced and have shown a Raman line at 1140 cm(-1).

引用

页码：968 / 971

页数：4

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