Journal
CHEMICAL PHYSICS
Volume 315, Issue 1-2, Pages 171-182Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chemphys.2005.04.006
Keywords
fluorescence decays; luminescence; time-resolved spectroscopy; stretched exponential; kinetics
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The Kohlrausch (stretched exponential) decay law is analyzed in detail. Analytical and approximate forms of the distribution of rate constants and related functions are obtained for this law. A simple generalization of the Kohlrausch decay law that eliminates unphysical aspects of the original form is introduced and fully characterized. General results concerning the relation between decay law and distribution of rate constants are also obtained. (C) 2005 Elsevier B.V. All rights reserved.
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