Feed gas dependence of the surface nanophase on HFCVD grown diamond films studied by surface enhanced Raman spectroscopy

M. Roy; V. C. George; A. K. Dua; P. Raj; S. Schulze; D. A. Tenne; G. Salvan; D. R.T. Zahn

doi:10.1016/S0169-4332(02)00215-5

Feed gas dependence of the surface nanophase on HFCVD grown diamond films studied by surface enhanced Raman spectroscopy

M. Roy, V. C. George, A. K. Dua, P. Raj, S. Schulze, D. A. Tenne, G. Salvan, D. R.T. Zahn

Physics Department

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

A series of diamond films grown by hot filament assisted chemical vapor deposition under different feed gas composition have been studied using surface enhanced Raman spectroscopy (SERS). The enhancement of Raman signal was achieved by the deposition of thin silver layer onto the film surface. All the samples show, upon silver deposition, a gradual asymmetry of the 1332 cm ^-1 Raman peak and enhanced intensity of both the 1332 and 1240 cm ^-1 peaks. An idea about the surface nanophase content in the film is made from the ratio of the enhanced intensities of the two peaks. Its dependence on the feed gas composition has been studied and the different possibilities leading to such dependence have been explored.

Original language	English
Pages (from-to)	334-337
Number of pages	4
Journal	Applied Surface Science
Volume	191
Issue number	1-4
DOIs	https://doi.org/10.1016/S0169-4332(02)00215-5
State	Published - 17 May 2002

Keywords

Diamond film
HFCVD
HRSEM
Phonon confinement
Surface enhanced Raman spectroscopy (SERS)
Surface nanophase

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10.1016/S0169-4332(02)00215-5

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title = "Feed gas dependence of the surface nanophase on HFCVD grown diamond films studied by surface enhanced Raman spectroscopy",

abstract = " A series of diamond films grown by hot filament assisted chemical vapor deposition under different feed gas composition have been studied using surface enhanced Raman spectroscopy (SERS). The enhancement of Raman signal was achieved by the deposition of thin silver layer onto the film surface. All the samples show, upon silver deposition, a gradual asymmetry of the 1332 cm -1 Raman peak and enhanced intensity of both the 1332 and 1240 cm -1 peaks. An idea about the surface nanophase content in the film is made from the ratio of the enhanced intensities of the two peaks. Its dependence on the feed gas composition has been studied and the different possibilities leading to such dependence have been explored.",

keywords = "Diamond film, HFCVD, HRSEM, Phonon confinement, Surface enhanced Raman spectroscopy (SERS), Surface nanophase",

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T1 - Feed gas dependence of the surface nanophase on HFCVD grown diamond films studied by surface enhanced Raman spectroscopy

AU - Roy, M.

AU - George, V. C.

AU - Dua, A. K.

AU - Raj, P.

AU - Schulze, S.

AU - Tenne, D. A.

AU - Salvan, G.

AU - Zahn, D. R.T.

PY - 2002/5/17

Y1 - 2002/5/17

N2 - A series of diamond films grown by hot filament assisted chemical vapor deposition under different feed gas composition have been studied using surface enhanced Raman spectroscopy (SERS). The enhancement of Raman signal was achieved by the deposition of thin silver layer onto the film surface. All the samples show, upon silver deposition, a gradual asymmetry of the 1332 cm -1 Raman peak and enhanced intensity of both the 1332 and 1240 cm -1 peaks. An idea about the surface nanophase content in the film is made from the ratio of the enhanced intensities of the two peaks. Its dependence on the feed gas composition has been studied and the different possibilities leading to such dependence have been explored.

AB - A series of diamond films grown by hot filament assisted chemical vapor deposition under different feed gas composition have been studied using surface enhanced Raman spectroscopy (SERS). The enhancement of Raman signal was achieved by the deposition of thin silver layer onto the film surface. All the samples show, upon silver deposition, a gradual asymmetry of the 1332 cm -1 Raman peak and enhanced intensity of both the 1332 and 1240 cm -1 peaks. An idea about the surface nanophase content in the film is made from the ratio of the enhanced intensities of the two peaks. Its dependence on the feed gas composition has been studied and the different possibilities leading to such dependence have been explored.

KW - Diamond film

KW - HFCVD

KW - HRSEM

KW - Phonon confinement

KW - Surface enhanced Raman spectroscopy (SERS)

KW - Surface nanophase

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DO - 10.1016/S0169-4332(02)00215-5

M3 - Article

AN - SCOPUS:0037123497

SN - 0169-4332

VL - 191

SP - 334

EP - 337

JO - Applied Surface Science

JF - Applied Surface Science

IS - 1-4

ER -

Feed gas dependence of the surface nanophase on HFCVD grown diamond films studied by surface enhanced Raman spectroscopy

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