Near-IR-excited Raman scattering in graphitic materials

One-phonon and two-phonon Raman spectra are reported for polycrystalline and microcrystalline graphites, excited at 1064 nm. Comparison with visible-excited spectra shows a large red shift and a strong enhancement of the intensity of the defect-activated one-phonon band and the two-phonon band, whic...

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Bibliographic Details
Published in:Materials science & engineering. B, Solid-state materials for advanced technology Solid-state materials for advanced technology, 1994-10, Vol.27 (1), p.L1-L3
Main Authors: Galluzzi, F., Barbarossa, V., Polla Mattiot, F., Tomaciello, R.
Format: Article
Language:English
Subjects:
Graphite
Raman scattering
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Summary:One-phonon and two-phonon Raman spectra are reported for polycrystalline and microcrystalline graphites, excited at 1064 nm. Comparison with visible-excited spectra shows a large red shift and a strong enhancement of the intensity of the defect-activated one-phonon band and the two-phonon band, which is also dependent on surface treatments. A tentative model to explain such observations is suggested.
ISSN:0921-5107
1873-4944
DOI:10.1016/0921-5107(94)90155-4