Electronic Resource
College Park, Md.
:
American Institute of Physics (AIP)
The Journal of Chemical Physics
106 (1997), S. 3920-3925
ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
Using a clean preparation technique of doping alkali atoms in argon matrices, VUV emissions of the charge-transfer states of the ionic xenon–alkali excimers (XeA)+ have been measured. With synchrotron radiation as an excitation source, the ionic species were generated in the matrix and energy and time-resolved spectroscopy has been performed with synchrotron radiation as an excitation source. The emissions of the charge-transfer reaction: (Xe+A)→(XeA+)+hν have been observed for all ionic (XeA)+ excimers with energies in the VUV range between 6.05 and 7.4 eV. The excitation spectra revealed a primary formation process through direct ionization of the xenon; however, neutral xenon resonance states are also contributing. As obtained from lifetime measurements, the bands are assigned to the 0I−→0+ transition of the fine-structure components which account for the long decay time. An increase of the xenon concentration favors the formation of ionic trimers (Xe2A)+ whose emissions have also been identified. © 1997 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.473782
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