Herzberg band fluorescence from UV excitation of O2 adsorbed on aerosol surfaces
- 15 April 1986
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 84 (8) , 4673-4679
- https://doi.org/10.1063/1.449994
Abstract
The fluorescence spectra produced from KrF laser (248.5 nm) excitation of O2 adsorbed on aerosol surfaces were observed. The aerosols were produced from the reaction of O3+C2H4 or O3+C2H4+SO2 in O2 or N2 in a gas‐flow reactor. The fluorescence spectra were identified as the O2 (A 3∑+u, A’ 3Δu, and c 1∑−u→X 3∑−g) Herzberg systems. The molecular fluorescence intensity was greatly enhanced by the aerosol surface. The possible mechanisms for the enhancement of the observed fluorescence by surface are discussed.Keywords
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