发光学报, 2012, 33 (2): 150, 网络出版: 2012-02-20
Eu3+和Tb3+掺杂硅酸钇纳米粉体的合成与表征
Synthesis and Characterization of Eu3+ and Tb3+ Doped Yttrium Silicate Nanopowders
摘要
采用溶胶-凝胶法合成了Y2SiO5∶Eu和Y2SiO5∶Tb纳米粉体，使用X射线衍射仪、扫描电镜等对粉体的结构、形貌和发光性能进行了分析，研究了Eu3+和Tb3+不同浓度掺杂硅酸钇纳米粉体的发光性能。在紫外光激发下，所获得的Y2SiO5∶Eu纳米粉体的主发射峰均位于612 nm，对应于Eu3+的5D0→7F2跃迁; Y2SiO5∶Tb纳米粉体的主发射峰均位于540 nm，对应于Tb3+的5D4→7F5跃迁。
Abstract
Y2SiO5∶Eu and Y2SiO5∶Tb nanopowders were prepared by sol-gel method. The structure, morphology and luminescent properties were analyzed by X-ray diffraction, scanning electron microscopy and so on. The luminescent properties of Eu3+ and Tb3+ doped yttrium silicate nanopowders with different concentration were investigated. The main emission peak of obtained Y2SiO5∶Eu nanopowders is at 612 nm excited by UV light, ascribed to the transition of5D0→7F2 of Eu3+. The main emission peak of Y2SiO5∶Tb nanopowders is at 540 nm, ascribed to the transition of5D4→7F5 of Tb3+.
张烨, 吴琳君, 秦来顺. Eu3+和Tb3+掺杂硅酸钇纳米粉体的合成与表征[J]. 发光学报, 2012, 33(2): 150. ZHANG Ye, WU Lin-jun, QIN Lai-shun. Synthesis and Characterization of Eu3+ and Tb3+ Doped Yttrium Silicate Nanopowders[J]. Chinese Journal of Luminescence, 2012, 33(2): 150.
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