TITLE:
Photoluminescence of EuGa2Se4:Nd3+
AUTHORS:
Аrif Мirjalal Pashayev, Bahadir Guseyn Tagiyev, Said Аbush Аbushov, Оgtay Bahadir Таgiyev, Fatma Аgaverdi Kаzimova
KEYWORDS:
Photoluminescence; Intracentral Transitions; Europium and Neodymium Ions
JOURNAL NAME:
Optics and Photonics Journal,
Vol.2 No.1,
March
29,
2012
ABSTRACT: 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(8S7/2) of Eu2+ ions. The intracentral emission of Nd3+, corresponding to both transitions from 4F3/2 level and higher situated levels, is observed at interband excitation. The essential intensity of transitions from 2H11/2 and 4F9/2 levels is the interested peculiarity of luminescence spectra of Nd3+ in these crystals.