UV Raman characteristics of nanocrystalline diamond films with different grain size

被引：178

作者：

Sun, Z ^{[1
]}

Shi, JR ^{[1
]}

Tay, BK ^{[1
]}

Lau, SP ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

来源：

关键词：

diamond film; Raman spectroscopy; chemical vapor deposition; grain size;

D O I：

10.1016/S0925-9635(00)00349-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanocrystalline diamond films with different size were characterized by ultraviolet (UV) (244 nm) Raman spectroscopy. It was found that a diamond peak at 1333 cm-1 was enhanced, while the D and G peak of graphite as well as photoluminescence was suppressed, compared with that measured by visible (514.5 nm) Raman. With decreasing the particle size from 120 to 28 nm, the diamond peak shifts from 1332.8 to 1329.6 cm-1, the line width of the peak becomes broader, the intensity ratio of diamond and G peak decreases. The down shift and broadening of the diamond peak depending on the particle size by UV Raman measurements are consistent with the phonon confinement model.

引用

页码：1979 / 1983

页数：5

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