Luminescent properties of EuGa2S4 : Er3+

A. N. Georgobiani , S. A. Abushov (1) , F. A. Kazymova (1) , B. G. Tagiev (1) , O. B. Tagiev (1) , P. Benalloul (2) , C. Barthou (3, 2)

1 ANAS - Azerbaijan National Academy of Sciences
2 LOS - Laboratoire d'optique des solides
3 INSP - Institut des Nanosciences de Paris

We have studied the thermo-and photoluminescence of undoped and Er3+-doped EuGa2S4 crystals in the temperature range 77–450 K. In thermoluminescence studies, different heating rates and excitation intensities have been used. The results demonstrate that, with increasing heating rate, the intensity of thermoluminescence peaks grows, and the peaks shift to higher temperatures. EuGa2S4:Er3+ crystals exhibit both Stokes and anti-Stokes luminescence. The mechanisms of these processes are analyzed.

Domaines: Matière Condensée [cond-mat]

A. N. Georgobiani, S. A. Abushov, F. A. Kazymova, B. G. Tagiev, O. B. Tagiev, et al.. Luminescent properties of EuGa2S4 : Er3+. Inorganic Materials / Neorganicheskie Materialy, 2006, 42 (11), pp.1188-1192. ⟨10.1134/S0020168506110033⟩. ⟨hal-01281572⟩