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The structure and luminescence properties of Mn2+ /Eu2+ /Er3+ -doped MgO-Ga2 O3 -SiO2 glasses and glass-ceramics.
Luminescence ( IF 2.9 ) Pub Date : 2019-07-21 , DOI: 10.1002/bio.3678
Zhenyu Gao 1 , Lixin Yu 1 , Xiaoqin Man 1 , Jianlin Zhong 1 , Qihuang Guo 1 , Yingxuan Zou 1
Affiliation  

The MgO-Ga2 O3 -SiO2 glasses and glass-ceramics samples doped with Eu2+ /Mn2+ /Er3+ and heated in reductive atmosphere were prepared by the sol-gel method. The structure, morphology and the luminescence properties were studied using X-ray diffraction, high-resolution transmission electron microscope, fluorescence spectra, and up-conversion emission. The luminescence characteristics of doped ions could be influenced by temperature and matrix component. The characteristic emission of Mn2+ , Eu2+ and Er3+ were seen and the energy transfer efficiency from Eu2+ to Mn2+ was enhanced as Mn2+ concentration was increased. In addition, the two-photon process was determined for the Er3+ -doped samples.

中文翻译:

掺杂Mn2 + / Eu2 + / Er3 +的MgO-Ga2 O3 -SiO2玻璃和微晶玻璃的结构和发光性能。

采用溶胶-凝胶法制备了掺有Eu2 + / Mn2 + / Er3 +的MgO-Ga2 O3 -SiO2玻璃和玻璃陶瓷样品,并在还原性气氛中加热。使用X射线衍射,高分辨率透射电子显微镜,荧光光谱和上转换发射研究了结构,形态和发光特性。掺杂离子的发光特性可能受温度和基质成分的影响。观察到Mn2 +,Eu2 +和Er3 +的特征发射,并且随着Mn2 +浓度的增加,从Eu2 +到Mn2 +的能量转移效率提高。另外,确定了掺Er 3+的样品的双光子过程。
更新日期:2019-12-11
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