Spontaneous and Stimulated Red Luminescence of Lu(2)O(3):Eu Nanocrystals - Archive ouverte HAL
Article Dans Une Revue Physics of the Solid State Année : 2011

Spontaneous and Stimulated Red Luminescence of Lu(2)O(3):Eu Nanocrystals

A. N. Gruzintsev
  • Fonction : Auteur
G. A. Emel'Chenko
  • Fonction : Auteur
Yu. V. Yermolayeva
  • Fonction : Auteur
V. M. Masalov
  • Fonction : Auteur
A. V. Tolmachev
  • Fonction : Auteur
P. Benalloul
  • Fonction : Auteur

Résumé

The spectra of spontaneous and stimulated luminescence of Lu(2)O(3) : Eu (7 at %) nanopowders at different optical pumping intensities have been investigated. The obtained results-changes in the shape of the red luminescence spectra and in the lifetime of the (5)D(0) excited state of Eu(3+) ions-indicate the onset of superluminescence with an increase in the excitation power. It has been found that an increase in the optical pumping intensity leads to a decrease in the luminescence decay time of the Lu(2)O(3) : Eu (7 at %) phosphor in the stimulated luminescence regime and to an increase in the quantum efficiency of red luminescence with a maximum at 611 nm.

Dates et versions

hal-01236791 , version 1 (02-12-2015)

Identifiants

Citer

A. N. Gruzintsev, G. A. Emel'Chenko, Yu. V. Yermolayeva, V. M. Masalov, A. V. Tolmachev, et al.. Spontaneous and Stimulated Red Luminescence of Lu(2)O(3):Eu Nanocrystals. Physics of the Solid State, 2011, 53 (6), pp.1263-1268. ⟨10.1134/S1063783411060126⟩. ⟨hal-01236791⟩
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