Preparation of a Novel Red Long Lasting Phosphorescent Material CaAl2Si2O8:Mn2+ and Investigation of its Luminescent Properties
A novel red long-lasting phosphor CaAl2Si2O8:Mn2+ was successfully synthesized by sol-gel method. X-ray diffractometer(XRD) and fluorescence spectrometer were used to characterize the structure and photoluminescence of the persistent phosphors, respectively. Under UV light irradiation, this phosphor showed obvious long-lasting phosphorescence that can be clearly seen with naked eyes in a dark room for 18 min after the irradiation source has been removed. Thermoluminescence measurement showed that the phosphor has an appropriate energy depth of 0.43 ev.
Dongye Sun, Wen-Pei Sung and Ran Chen
B. S. Chen et al., "Preparation of a Novel Red Long Lasting Phosphorescent Material CaAl2Si2O8:Mn2+ and Investigation of its Luminescent Properties", Applied Mechanics and Materials, Vols. 71-78, pp. 3151-3155, 2011