P_(2)O_(5).BaO.Na_(2)O.K_(2)O glasses doped with various content of Eu_(2)O_(3) were prepared using high temperature melting method, and the Eu^(2+) ions in the phosphate glasses were obtained with the aid of the reductive action of silicon powder. The fabricating conditions, fluorescence, excitation spectra of the glasses were then studied. The glasses containing europium show a broad emission band at 450 nm and sharp bands from 580 to 650 nm, and the co-existence of Eu^(2+) and Eu^(3+) is identified. Also, a good glass with a dominant proportion and large quantity of Eu^(2+) ions can be obtained by the reductive action of silicon powder and proper processing.
© 2005 Chinese Optics Letters
(160.2540) Materials : Fluorescent and luminescent materials
(160.2750) Materials : Glass and other amorphous materials
(160.4670) Materials : Optical materials
(260.2510) Physical optics : Fluorescence
Haiping Xia, Hongwei Song, Qiuhua Nie, Jianli Zhang, Jinhao Wang, Jiwei Wang, Tiefeng Xu, and Jiahua Zhang, "Preparation and optical spectroscopy of phosphate glasses containing divalent europium ions," Chin. Opt. Lett. 1, 296-298 (2003)