Author(s)

Аrif Мirjalal Pashayev, Bahadir Guseyn Tagiyev, Said Аbush Аbushov, Оgtay Bahadir Таgiyev, Fatma Аgaverdi Kаzimova

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Institute of Physics, Azerbaijan National Academy of Sciences, Baku, Azerbaijan.

The photoluminescence (PL) in temperature interval 77 - 300 K is investigated in Eu Ga₂Se₄:Nd polycrystals. It is established that broad band PL with maximum at 561nm is caused by intracentral transitions 4f⁶5d - 4f⁷(⁸S_7/2) of Eu²⁺ ions. The intracentral emission of Nd³⁺, corresponding to both transitions from ⁴F_3/2 level and higher situated levels, is observed at interband excitation. The essential intensity of transitions from ²H_11/2 and ⁴F_9/2 levels is the interested peculiarity of luminescence spectra of Nd³⁺ in these crystals.

Photoluminescence; Intracentral Transitions; Europium and Neodymium Ions

А. Pashayev, B. Tagiyev, S. Аbushov, О. Таgiyev and F. Kаzimova, "Photoluminescence of EuGa₂Se₄:Nd³⁺," Optics and Photonics Journal, Vol. 2 No. 1, 2012, pp. 59-63. doi: 10.4236/opj.2012.21009.