3D Hierarchical Architectures of Sodium Lanthanide Sulfates: Hydrothermal Synthesis, Formation Mechanisms, and Luminescence Properties

被引：21
作者：
Song, Yanhua [1 ]
Zou, Haifeng [1 ]
Sheng, Ye [1 ]
Zheng, Keyan [1 ]
You, Hongpeng [2 ]
机构：
[1] Jilin Univ, Coll Chem, Changchun 130026, Peoples R China
[2] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resource Utilizat, Changchun 130022, Peoples R China
来源：
JOURNAL OF PHYSICAL CHEMISTRY C | 2011年 / 115卷 / 40期
基金：
中国国家自然科学基金;
关键词：
FACILE SYNTHESIS; BUILDING-BLOCKS; ENERGY-TRANSFER; GROWTH;
D O I：
10.1021/jp203903b
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Sodium lanthanide sulfate NaLn(SO4)(2)center dot H2O (Ln = Y, La to Yb) nano/microcrystals with multiform morphologies were successfully synthesized by a facile and effective hydrothermal method. The photoluminescence properties of the Ce3+ and Tb3+ single-doped as well as the Ce3+-Tb3+ codoped NaY-(SO4)(2)center dot H2O microsheaves were characterized. The results reveal that the existence of the Ce3+ ions can dramatically enhance the emission intensity of the Tb3+ ions, due to an efficient energy transfer from the Ce3+ to the Tb3+ ions. The critical energy-transfer distance between the Ce3+ and the Tb3+ ions was calculated by methods of concentration quenching and spectral overlapping. Analysis and calculation reveal that the dipole-quadrupole interaction should be mainly responsible for the energy transfer.
引用
收藏
页码：19463 / 19469
页数：7
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