Lifetime and quenching rate constants for Kr/sub 2/F* and Kr/sub 2/*

Journal Article · Mon May 15 04:00:00 EDT 1978 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.89882· OSTI ID:7208063

Quigley, G P; Hughes, W M

A broadband 2.5-ns-long argon excimer photolytic source was used to initiate the reaction sequence resulting in the formation of Kr/sub 2/F*. The resulting fluorescence signal at 400 nm depended on the radiative and quenching processes of Kr/sub 2/* as well as Kr/sub 2/F*. The radiative lifetime of Kr/sub 2/F* was found to be 181 +- 12 ns. The rate constants for quenching by F/sub 2/ and Kr are 4.3 +- 0.4 x 10/sup -10/ and 6.9 +- 0.7 x 10/sup -15/ cm/sup 3/ s/sup -1/, respectively. The Kr/sub 2/* coupled l/sub u/, O/sub u/ lifetime is 280 +- 30 ns and the rate constant for quenching of Kr/sub 2/* by F/sub 2/ is 2.1 +- 0.2 x 10/sup -10/ cm/sup 3/ s/sup -1/.

• Research Organization: University of California, Los Alamos Scientific Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545
• OSTI ID: 7208063
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 32:10; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
ATOM-MOLECULE COLLISIONS
CHEMICAL REACTION KINETICS
COLLISIONS
DISSOCIATION
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXCITED STATES
FLUORESCENCE
FLUORIDES
FLUORINE
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HALOGENS
HEAT TREATMENTS
KINETICS
KRYPTON
KRYPTON COMPOUNDS
KRYPTON FLUORIDES
LIFETIME
LUMINESCENCE
MOLECULE COLLISIONS
MOLECULE-MOLECULE COLLISIONS
NONMETALS
OPTICAL PUMPING
QUENCHING
RARE GAS COMPOUNDS
RARE GASES
REACTION KINETICS