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Photoluminescence of EuGa<sub>2</sub>Se<sub>4</sub>:Nd<sup>3+</sup>
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作者 Аrif Мirjalal Pashayev Bahadir Guseyn Tagiyev +2 位作者 Said Аbush Аbushov Оgtay Bahadir Таgiyev Fatma Аgaverdi Kаzimova 《Optics and Photonics Journal》 2012年第1期59-63,共5页
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(... 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. 展开更多
关键词 PHOTOLUMINESCENCE intracentral TRANSITIONS EUROPIUM and NEODYMIUM Ions
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