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材料研究学报  2011, Vol. 25 Issue (5): 545-549    
  研究论文 本期目录 | 过刊浏览 |
共掺Na+(K+)/Er3+50SiO2--30PbO-20PbF2--0.8ErF3玻璃陶瓷的上转换光谱性质
邱先念1,2, 任国仲1,2, 林乐静1,2, 陈敏鹏1,2, 杨奇斌1,2
1.湘潭大学现代物理研究所 湘潭 411105
2.湘潭大学低维材料及其应用技术教育部重点实验室 湘潭 411105
Upconversion Spectroscopic Properties of Na+ (K+)/Er Codoped 50SiO2–30PbO–20PbF2–0.80ErF3 Glasses and Glass Ceramics
QIU Xiannian1,2,  REN Guozhong1,2,  LIN Lejing1,2,  CHEN Minpeng1,2,  YANG Qibin1,2
1.Faculty of Materials, Institute of Modern Physics, Xiangtan University, Xiangtan 411105
2.Key Laboratory of Low Dimensional Materials & Application Technology of Ministry of Education, Xiangtan University, Xiangtan 411105
引用本文:

邱先念 任国仲 林乐静 陈敏鹏 杨奇斌 . 共掺Na+(K+)/Er3+50SiO2--30PbO-20PbF2--0.8ErF3玻璃陶瓷的上转换光谱性质[J]. 材料研究学报, 2011, 25(5): 545-549.
. Upconversion Spectroscopic Properties of Na+ (K+)/Er Codoped 50SiO2–30PbO–20PbF2–0.80ErF3 Glasses and Glass Ceramics[J]. Chin J Mater Res, 2011, 25(5): 545-549.

全文: PDF(1002 KB)  
摘要: 研究掺入少量的碱金属离子Na+、K+后, 50SiO2--30PbO--20PbF2--0.8ErF3玻璃及玻璃陶瓷的热稳定性质和光谱性质。应用Judd--Ofelt理论和吸收光谱计算了Er3+
离子的J--O参数Ωλ(λ=2、4、6)。上转换光谱分析表明: 在520、545和650 nm处有较强的绿光和红光发射, 在412 nm处有微弱的紫光发射, 分别对应2H11/2→4I15/2, 4S3/2→4I15/2, 4F9/2→4I15/2, 2H9/2→4I15/2的跃迁。碱金属离子K+、Na+的加入均有利于掺Er3+硅酸盐玻璃和玻璃陶瓷的上转换发光增强, 添加Na+的样品尤其明显。XRD、吸收光谱以及上转换荧光光谱结果表明, 掺入Na+离子后, 在50SiO2--30PbO--20PbF2--0.8ErF3--0.5NaF中有部分Er3+:β--PbF2微晶。
关键词 无机非金属材料共掺杂稀土掺杂玻璃陶瓷上转换碱金属离子    
Abstract:The upconversion spectroscopic properties of Na+(K+)/Er codoped 50SiO2–30PbO–20PbF2–0.80ErF3 glasses and glass ceramics were studied. Three major glasses were prepared by sintering method according to the following molar composition: 50SiO2–30PbO–20PbF2–0.8ErF3 (EG), 50SiO2–30PbO–20PbF2–0.5KO1/2–0.8ErF3 (KG), 50SiO2–30PbO–20PbF2–0.5NaF–0.8ErF3 (NaG). Er3+: β–PbF2 nano–crystallites grew in whole glasses, after heating treatment at the temperature 30oC higher than Tg. However, there existed small amount of Er3+ : β–PbF2 nano–crystallite in the NaG even before heating treatment. J–O parameters, Ω2, Ω4, Ω6, were calculated from absorption spectrum according to J–O theory. The glass ceramics emitted more intensive red, green and blue upconersion luminescence than that of the glasses under exitation of 980 nm laser diode.
Key wordsinorganic non-metallic materials    codoped    rare earth ion doped glass ceramics    upconversion    alkali metals ion
收稿日期: 2011-06-20     
ZTFLH: 

O482

 
基金资助:

单颗粒生物大分子原子分辨三维重构的理论基础研究

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