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Article Dans Une Revue Journal of Applied Physics Année : 2007

Time-resolved photoluminescence and optically stimulated luminescence measurements of picosecond-excited SrS:Ce,Sm phosphor

Résumé

Doubly activated alkaline-earth phosphors are known to present luminescent and charge-storage properties. In this work, we investigate the photoluminescence (PL) and the optically stimulated luminescence (OSL) of the SrS:Ce,Sm phosphor by means of time-resolved spectroscopy with excitation laser pulses of 2 ps duration. By comparing the PL measurements obtained with direct UV excitation and the OSL experiments performed using infrared wavelength, it was possible to measure a charge conversion lifetime of about 2.5±1 ns. A luminescence lifetime of 36±1 ns has also been found. These measurements are presented and discussed in connection with applications where the speed of the SrS:Ce,Sm luminescence is a crucial parameter

Domaines

Electronique
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Dates et versions

hal-00327469 , version 1 (08-10-2008)

Identifiants

Citer

F. Ravotti, D. Benoit, P. Lefèbvre, P. Valvin, J.-R. Vaillé, et al.. Time-resolved photoluminescence and optically stimulated luminescence measurements of picosecond-excited SrS:Ce,Sm phosphor. Journal of Applied Physics, 2007, 102 (12), pp.123102. ⟨10.1063/1.2822474⟩. ⟨hal-00327469⟩
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