Ultraviolet Raman characterisation of diamond-like carbon films

Adamopoulos, George and Gilkes, K.W.R and Robertson, J and Conway, N.M.J and Kleinsorge, B.Y and Buckley, A and Batchelder, D.N (1999) Ultraviolet Raman characterisation of diamond-like carbon films. Diamond and Related Materials, 8 (2-5). pp. 541-544. ISSN 0925-9635

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Diamond-like carbon (DLC) films with a range of sp(3) 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 sp(3) sites. It is found that the ratio of the intensities of the C peak and the 1200 cm(-1) peak follows a universal dependence with the sp(3) content in both hydrogenated and unhydrogenated DLCs. This can be used for non-destructive evaluation of the sp(3) content of any DLC film.

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Journal Article
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Diamond and Related Materials
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29 Oct 2012 16:50
Last Modified:
21 Nov 2022 22:55