We report the first observation of up-conversion photostimulated luminescence in non-doped Mg_(2)SnO_(4).Stimulated by 980 nm infrared laser(reading)after ultraviolet irradiation(writing),the phosphor shows photostimu...We report the first observation of up-conversion photostimulated luminescence in non-doped Mg_(2)SnO_(4).Stimulated by 980 nm infrared laser(reading)after ultraviolet irradiation(writing),the phosphor shows photostimulated emission band covering 470-550nm,which is due to the recombination of F centers with holes.After ceasing ultraviolet irradiation,the storage intensity would rapidly decrease to 59%of its original storage intensity in 2.5h and then would not degrade anymore.It is suggested that the Mg_(2)SnO_(4)has potential applications for optical storage.Accordingly,the possible photostimulated luminescence mechanisms of Mg_(2)SnO_(4)are proposed.展开更多
基金Supported by the National Natural Science Young Foundation of China(502041032)the Innovation and Entrepreneurship Foundation of Lanzhou University.
文摘We report the first observation of up-conversion photostimulated luminescence in non-doped Mg_(2)SnO_(4).Stimulated by 980 nm infrared laser(reading)after ultraviolet irradiation(writing),the phosphor shows photostimulated emission band covering 470-550nm,which is due to the recombination of F centers with holes.After ceasing ultraviolet irradiation,the storage intensity would rapidly decrease to 59%of its original storage intensity in 2.5h and then would not degrade anymore.It is suggested that the Mg_(2)SnO_(4)has potential applications for optical storage.Accordingly,the possible photostimulated luminescence mechanisms of Mg_(2)SnO_(4)are proposed.
