| 二价碱土金属氟化物对Er3+/Tm3+/Yb3+共掺氟氧锗酸盐玻璃热稳定性和光谱特性影响的研究 |
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| 作者姓名： | Hu YB Zhang XN Zhou DL Jiao Q Wang RF Huang JF Long XB Qiu JB |
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| 作者单位： | 昆明理工大学材料科学与工程学院;昆明冶金高等专科学校材料工程研究所;四川大学材料科学与工程学院 |
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| 基金项目： | 国家自然科学基金项目(50772045);云南省自然科学重点基金项目(2009CC009)资助 |
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| 摘 要： | 制备了分别含有MgF2,CaF2,SrF2或BaF2的Er3+/Tm3+/Yb3+共掺氟氧锗酸盐玻璃试样和包含BaF2纳米晶的玻璃陶瓷试样,所制备试样均具有良好的透光性。对试样的热稳定性和上转换发光特性进行了研究。通过分析试样的吸收光谱发现,随着所含二价阳离子原子量的增大,试样的紫外吸收截止波长明显向短波方向移动。结果显示:通过改变所含二价碱土金属离子的种类能够对激发光的颜色进行调节,特别值得关注的是Mg2+的影响;结果证实:通过对包含二价碱土金属的玻璃进行微晶化处理或者增加二价碱土金属的含量均能提高上转换发光的强度。
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| 关 键 词： | 上转换发光 氟氧锗酸盐玻璃 二价碱土金属氟化物 Er3+/Tm3+/Yb3+共掺 |
Effect of bivalent alkaline earth fluorides introduction on thermal stability and spectroscopic properties of Er3+/Tm3+ /Yb3+ co-doped oxyfluorogermanate glasses |
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| Hu YB,Zhang XN,Zhou DL,Jiao Q,Wang RF,Huang JF,Long XB,Qiu JB.Effect of bivalent alkaline earth fluorides introduction on thermal stability and spectroscopic properties of Er3+/Tm3+ /Yb3+ co-doped oxyfluorogermanate glasses[J].Spectroscopy and Spectral Analysis,2012,32(1):56-60. |
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| Authors: | Hu Yue-bo Zhang Xin-na Zhou Da-li Jiao Qing Wang Rong-fei Huang Jin-feng Long Xiao-bo Qiu Jian-bei |
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| Institution: | School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China. boyuehu@qq.com |
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| Abstract: | Transparent Er3+/Tm3+ /Yb3+ co-doped oxyfluorogermanate glasses alone containing MgF2, CaF2, SrF2 or BaF2 and nano-glass-ceramics only containing BaF2 were prepared. The thermal stabilities and the up-conversion emission properties of the samples were investigated. Analyses of absorbance spectra reveal that the UV cutoff band moves slightly to shortwave band with the doping bivalent cation mass increasing. The results show that the emission color can be adjusted by changing the alkaline earth cation species in the glass matrixes, especially as Mg2+ is concerned, and the emission intensity can increase notably by heating the glass containing alkaline-earth fluoride into glass ceramic containing alkaline-earth fluoride nanocrystals or increasing the content of bivalent alkaline earth fluorides. |
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| Keywords: | Up-conversion luminescence Oxyfluorogermanate glasses Alkaline earth fluoride Er3+/Tm3+/Yb3+ co-doped |
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