We present a near edge X-ray absorption fine structure spectroscopy characterization of nanostructured carbon films containing carbynoid species. By a careful data analysis and normalization of the spectra at the carbon K-edge we have quantitatively evaluated the extent of valence sp hybridization of the films. A sp/sp2 ratio between 10% and 25% has been obtained. This result allowed the evaluation of the ratio between the sp and sp2 Raman cross section at different excitation laser wavelengths
Quantitative evaluation of sp/sp(2) hybridization ratio in cluster-assembled carbon films by in situ near edge X-ray absorption fine structure spectroscopy / L. Ravagnan, G.A. Bongiorno, D. Bandiera, E. Salis, P.G.C. Piseri, P. Milani, C. Lenardi, M. Coreno, M. de Simone, K.C. Prince. - In: CARBON. - ISSN 0008-6223. - 44:8(2006), pp. 1518-1524.
Quantitative evaluation of sp/sp(2) hybridization ratio in cluster-assembled carbon films by in situ near edge X-ray absorption fine structure spectroscopy
L. RavagnanPrimo
;G.A. BongiornoSecondo
;P.G.C. Piseri;P. Milani;C. Lenardi;
2006
Abstract
We present a near edge X-ray absorption fine structure spectroscopy characterization of nanostructured carbon films containing carbynoid species. By a careful data analysis and normalization of the spectra at the carbon K-edge we have quantitatively evaluated the extent of valence sp hybridization of the films. A sp/sp2 ratio between 10% and 25% has been obtained. This result allowed the evaluation of the ratio between the sp and sp2 Raman cross section at different excitation laser wavelengths
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