Photoluminescence Properties of NaYF4:Tb3+,Ce3+ under VUV/UV Excitation

被引：3
|
作者：
Yu, Xue [1 ]
Wang, Yuhua [1 ]
Liu, Jidi [1 ]
机构：
[1] Lanzhou Univ, Sch Phys Sci & Technol, Dept Mat Sci, Lanzhou 730000, Peoples R China
来源：
ELECTROCHEMICAL AND SOLID STATE LETTERS | 2010年 / 13卷 / 03期
基金：
中国国家自然科学基金;
关键词：
cerium; crystal growth from solution; photoluminescence; sodium compounds; terbium; ultraviolet spectra; yttrium compounds; SOL-GEL SYNTHESIS; UP-CONVERSION; ENERGY-TRANSFER; LUMINESCENCE; PHASE; NANOCRYSTALS; EMISSION; CE3+; TB3+; INTENSITIES;
D O I：
10.1149/1.3274804
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
NaYF4 doped with Ce3+ or Tb3+ or double-doped with Ce3+ and Tb3+ was prepared by the hydrothermal method. With the increasing reduction temperature, the hexagonal NaYF4 was gradually replaced by cubic NaYF4 (alpha-NaYF4). Tb3+-doped alpha-NaYF4 exhibited an intensive green photoluminescence under vacuum ultraviolet (VUV) or UV excitation. Although the energy transfer between Ce3+ and Tb3+ was not observed in the VUV region, the green emission of Tb3+ in alpha-NaYF4 was greatly improved with Ce3+ co-doped due to the energy-transfer procedure under UV excitation.
引用
收藏
页码：J18 / J20
页数：3
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