On the characterization of disordered and heterogeneous carbonaceous materials by Raman spectroscopy.
Olivier Beyssac
Bruno Goffé
Jean-Pierre Petitet
Emmanuel Froigneux
Myriam Moreau
Jean-Noël Rouzaud
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
PubMedID: 12909140
Beyssac O, Goffé B, Petitet JP, Froigneux E, Moreau M, Rouzaud JN. On the characterization of disordered and heterogeneous carbonaceous materials by Raman spectroscopy. Spectrochim Acta A Mol Biomol Spectrosc. 2003;59(10):2267-76.
The applicability of Raman spectroscopy to characterize disordered and heterogeneous carbonaceous materials (CM) is discussed, by considering both natural and synthetic CM. First, different analytical mismatches during the measurement are discussed and technical indications are provided in order to eliminate them. Second, the accuracy and relevance of the different parameters obtained by the decomposition of spectra by conventional fitting procedure, is reviewed. Lastly, a new Raman technique (Raman area mode microspectroscopy) giving an homogeneous repartition of power within a large laser beam is presented, this technique being powerful to study strongly heterogeneous CM and/or photosensitive samples.
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