Ultraviolet Raman characterisation of diamond-like carbon films

G. Adamopoulos; K. W.R. Gilkes; J. Robertson; N. M.J. Conway; B. Y. Kleinsorge; A. Buckley; D. N. Batchelder

doi:10.1016/s0925-9635(98)00430-0

Ultraviolet Raman characterisation of diamond-like carbon films

G. Adamopoulos^*, K. W.R. Gilkes, J. Robertson, N. M.J. Conway, B. Y. Kleinsorge, A. Buckley, D. N. Batchelder

^*Corresponding author for this work

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

Abstract

Diamond-like carbon (DLC) films with a range of sp³ fractions have been examined by ultraviolet (UV) spectroscopy with 244 nm excitation. The UV Raman spectra of both hydrogenated and unhydrogenated films show the G peak near 1600 cm^-1 and a broad peak around 1200 cm^-1, which is attributed to C-C stretching vibrations of sp³ sites. It is found that the ratio of the intensities of the G peak and the 1200 cm^-1 peak follows a universal dependence with the sp³ content in both hydrogenated and unhydrogenated DLCs. This can be used for non-destructive evaluation of the sp³ content of any DLC film.

Original language	English
Pages (from-to)	541-544
Number of pages	4
Journal	Diamond and Related Materials
Volume	8
Issue number	2-5
DOIs	https://doi.org/10.1016/s0925-9635(98)00430-0
Publication status	Published - Mar 1999
Externally published	Yes

Keywords

Diamond-like carbon
Raman
Sp bonding
Ta-C:H

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Chemistry
Mechanical Engineering
General Physics and Astronomy
Materials Chemistry
Electrical and Electronic Engineering

Access to Document

10.1016/s0925-9635(98)00430-0

Cite this

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title = "Ultraviolet Raman characterisation of diamond-like carbon films",

abstract = "Diamond-like carbon (DLC) films with a range of sp3 fractions have been examined by ultraviolet (UV) spectroscopy with 244 nm excitation. The UV Raman spectra of both hydrogenated and unhydrogenated films show the G peak near 1600 cm-1 and a broad peak around 1200 cm-1, which is attributed to C-C stretching vibrations of sp3 sites. It is found that the ratio of the intensities of the G peak and the 1200 cm-1 peak follows a universal dependence with the sp3 content in both hydrogenated and unhydrogenated DLCs. This can be used for non-destructive evaluation of the sp3 content of any DLC film.",

keywords = "Diamond-like carbon, Raman, Sp bonding, Ta-C:H",

author = "G. Adamopoulos and Gilkes, {K. W.R.} and J. Robertson and Conway, {N. M.J.} and Kleinsorge, {B. Y.} and A. Buckley and Batchelder, {D. N.}",

year = "1999",

month = mar,

doi = "10.1016/s0925-9635(98)00430-0",

language = "English",

volume = "8",

pages = "541--544",

journal = "Diamond and Related Materials",

issn = "0925-9635",

publisher = "Elsevier",

number = "2-5",

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TY - JOUR

T1 - Ultraviolet Raman characterisation of diamond-like carbon films

AU - Adamopoulos, G.

AU - Gilkes, K. W.R.

AU - Robertson, J.

AU - Conway, N. M.J.

AU - Kleinsorge, B. Y.

AU - Buckley, A.

AU - Batchelder, D. N.

PY - 1999/3

Y1 - 1999/3

N2 - Diamond-like carbon (DLC) films with a range of sp3 fractions have been examined by ultraviolet (UV) spectroscopy with 244 nm excitation. The UV Raman spectra of both hydrogenated and unhydrogenated films show the G peak near 1600 cm-1 and a broad peak around 1200 cm-1, which is attributed to C-C stretching vibrations of sp3 sites. It is found that the ratio of the intensities of the G peak and the 1200 cm-1 peak follows a universal dependence with the sp3 content in both hydrogenated and unhydrogenated DLCs. This can be used for non-destructive evaluation of the sp3 content of any DLC film.

AB - Diamond-like carbon (DLC) films with a range of sp3 fractions have been examined by ultraviolet (UV) spectroscopy with 244 nm excitation. The UV Raman spectra of both hydrogenated and unhydrogenated films show the G peak near 1600 cm-1 and a broad peak around 1200 cm-1, which is attributed to C-C stretching vibrations of sp3 sites. It is found that the ratio of the intensities of the G peak and the 1200 cm-1 peak follows a universal dependence with the sp3 content in both hydrogenated and unhydrogenated DLCs. This can be used for non-destructive evaluation of the sp3 content of any DLC film.

KW - Diamond-like carbon

KW - Raman

KW - Sp bonding

KW - Ta-C:H

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DO - 10.1016/s0925-9635(98)00430-0

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