Luminescent properties of Dy³⁺-doped and Dy³⁺–Tm³⁺co-doped phosphate glasses

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• 作者：Xiaoluan Liang ; Chaofeng Zhu ; Yunxia Yang ; Shuanglong Yuan ; Guorong Chen
• 关键词：Luminescence glasses ; White-light-emitting diode ; Rare earth ions ; Luminescent properties
• 刊名：Journal of Luminescence
• 出版年：2008
• 期刊代码：54_00222313
• 类别：ch
• 出版时间：July 2008
• 卷：128
• 期：7
• 页码：1162-1164
• 文件大小：147 K

摘要

Phosphate glasses doped with Dy³⁺ ions and co-doped with Dy³⁺–Tm³⁺ ions are successfully prepared in the present work. Their photoluminescence properties have been studied by absorption, excitation and emission spectra. A combination of blue and yellow emissions has emerged in the glasses, which allows the observation of white light when the glasses are excited by the ultraviolet light. The emission intensity of Dy³⁺ is influenced by the system ionicity, while the intensity ratio of yellow to blue emissions from Dy³⁺ can be tuned by varying both the concentration of Tm³⁺ ion and the glass matrix composition.