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1994
Journal Article
Titel
Photoluminescence and efficiency of Ce3+ in SrS powders
Abstract
The luminescence efficiency of SrS:Ce powders in the doping range from 0.01 to 1.0 at.% was investigated by photoluminescence decay studies. The radiative decay time of Ce3+ is SrS was determined to be 27 ns. The onset of concentration quenching at concentrations higher than about 0.7 at.% has been obtained. The photoluminescence spectrum of Ce3+ exhibits two emission bands as a consequence of the ground state splitting. The Huang-Rhys factor of the 5d-4f transition was estimated to be about 6. The inhomogeneous broadening of the emission band of samples with higher doping level has been investigated by site-selective and time-resolved spectroscopy.
Tags
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cerium
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luminescence of inorganic solids
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photoluminescence
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powders
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radiation quenching
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radiative lifetimes
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strontium compounds
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time resolved spectra
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site selective spectroscopy
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efficiency
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srs powders
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luminescence efficiency
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photoluminescence decay studies
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radiative decay time
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ce3+
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concentration quenching
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emission bands
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ground state splitting
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huang-rhys factor
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5d-4f transition
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inhomogeneous broadening
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time-resolved spectroscopy