Photoluminescence of EuGa2Se4:Nd3+

Аrif Мirjalal Pashayev, Bahadir Guseyn Tagiyev, Said Аbush Аbushov, Оgtay Bahadir Таgiyev, Fatma Аgaverdi Kаzimova
2012 Optics and Photonics Journal  
The photoluminescence (PL) in temperature interval 77 -300 K is investigated in Eu Ga 2 Se 4 :Nd polycrystals. It is established that broad band PL with maximum at 561nm is caused by intracentral transitions 4f 6 5d -4f 7 ( 8 S 7/2 ) of Eu 2+ ions. The intracentral emission of Nd 3+ , corresponding to both transitions from 4 F 3/2 level and higher situated levels, is observed at interband excitation. The essential intensity of transitions from 2 H 11/2 and 4 F 9/2 levels is the interested
more » ... arity of luminescence spectra of Nd 3+ in these crystals.
doi:10.4236/opj.2012.21009 fatcat:t35lfm3ulvdenpqf2d4ncdajoq