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SnO 2 doped strontium phosphate glasses are prepared and their enhanced visible photoluminescence properties are investigated by co-doping Gd 2 O 3 . Sn center and Gd 3+ are co-excited at 273nm and show a broad emission band of Sn center at 421nm and the sharp one of Gd 3+ ions at 311nm. Much enhanced emission from Sn center is observed with the increased Gd...
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