Raman Spectroscopy Of Uncd Grain Boundaries
Near-infrared excited Raman spectroscopy was used to investigate the bonding configuration of nanocrystalline and ultra-nanocrystalline diamond thin films. It was found that by limiting the excitation volume it is possible to detect characteristic vibrations arising from the grain boundary region. A statistical analysis of the spectra measured in different points of the film surface allows the determination of dominant structural units present in this region.
Keywordsultra-nanocrystalline diamond grain boundary Raman spectroscopy surface-enhanced Raman spectroscopy
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