Luminescent Properties of a White Afterglow Phosphor CdSiO3:Dy3+

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• 作者：Yingliang Liu ; Bingfu Lei ; and Chunshan Shi
• 刊名：Chemistry of Materials
• 出版年：2005
• 出版时间：April 19, 2005
• 年：2005
• 卷：17
• 期：8
• 页码：2108 - 2113
• 全文大小：119K
• 年卷期：v.17,no.8(April 19, 2005)
• ISSN：1520-5002

文摘

Novel one-component phosphors, Cd_1-xDy_xSiO₃, which emit white color long-lasting phosphorescenceupon UV light excitation, are prepared by the conventional high-temperature solid-state method andtheir luminescent properties are systematically investigated in this paper. XRD, photoluminescence, long-lasting phosphorescence, and thermoluminescence spectra are used to characterize the synthesizedphosphors. These phosphors are well-crystallized by calcination at 1050 C for 5 h. After irradiationunder 254-nm UV light, these phosphors emit white light and their phosphorescence can be seen withthe naked eye in the darkroom clearly, even after the irradiation light sources have been removed formore than 5 h. The possible mechanism of this white-light-emitting long-lasting phosphor is alsoinvestigated.