lifetime

of luminescence
https://doi.org/10.1351/goldbook.L03516
The time required for the @L03641@ intensity to decay from some initial value to \(\frac{1}{\text{e}}\) of that value (\(\text{e} = 2.718\,...\)). Lifetimes can be measured by @P04529@ (@F02416@) where the phase shift between the sinusoidally modulated exciting light and the emitted light is measured.
Source:
PAC, 1984, 56, 231. (Nomenclature, symbols, units and their usage in spectrochemical analysis-Part VI: molecular luminescence spectroscopy) on page 242 [Terms] [Paper]
Cite as: IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). Online version (2019-) created by S. J. Chalk. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.
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Last revised: February 24, 2014