Formation of fluorescence bands of polyatomic organic molecules in the gaseous phase upon excitation by electrons

Autor: S. M. Kazakov, V. V. Gruzinskii, I. I. Kulak, V. A. Suchkov, M. N. Kaputerko
Rok vydání: 1998
Předmět:
Zdroj: Journal of Applied Spectroscopy. 65:224-231
ISSN: 1573-8647
0021-9037
Popis: Information on paths in absorption and deactivation of energy gained by molecules in their excitation by electron impact to low-lying singlet states has been obtained from an analysis of changes in the fluorescence spectra of these molecules. It is shown that there is a significant difference in the formation of fluorescence spectra when free molecules are excited by optical radiation and by electrons. It contrast to optical excitation, the interaction of an electron with a molecule is nonselective in character. All electronic states have a chance to be excited, which results in ensembles of emitting molecules with a different store of vibrational energy, and these ensembles each contribute to the fluorescence spectrum.
Databáze: OpenAIRE
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