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Scattering background in laser Raman spectra of oxide surfaces

✍ Scribed by H. Jeziorowski; H. Knözinger

Publisher
Elsevier Science
Year
1976
Tongue
English
Weight
372 KB
Volume
42
Category
Article
ISSN
0009-2614

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✦ Synopsis

The scattermg barkgronnd observed in the laser Raman spectra of surfaces of polydisperse metal oxrdes, namely aiuminas, is due to various sources, such as surface contamination by hydrocarbons and transition metal impurities. An important contribution comes from an optical excitation of bulk and surface states. The luminescence from surface states can be quenched by collisional deactivation by the admission of oxygen or nitric oxide.

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