Hydrothermal synthesis and luminescence properties of hierarchical SrF2 and SrF2:Ln3+ (Ln = Er, Nd, Yb, Eu, Tb) micro/nanocomposite architectures

被引：26

作者：

Peng, Jing ^{[1
]}

Hou, Suying ^{[1
]}

Liu, Xianchun ^{[1
]}

Feng, Jing ^{[2
]}

Yu, Xiaodan ^{[1
]}

Xing, Yan ^{[1
]}

Su, Zhongmin ^{[1
]}

机构：

[1] NE Normal Univ, Coll Chem, Changchun 130024, 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：

MATERIALS RESEARCH BULLETIN | 2012年 / 47卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Fluorides; Chemical synthesis; Electron microscopy; Luminescence; DIRECTED SYNTHESIS; MICROSPHERES; FLUORIDE; NANOCRYSTALS; CAF2; BAF2; TEMPERATURE; FABRICATION; CONVERSION; NANOTUBES;

D O I：

10.1016/j.materresbull.2011.11.030

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Highly uniform SrF2 and SrF(2)Ln(3+) (Ln = Er, Nd, Yb, Eu, Tb) hierarchical microspheres assembled by 2D nanoplates have been successfully synthesized by a facile and friendly hydrothermal route. X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and photoluminescence (PL) spectra were used to characterize the samples. The experimental results indicate that reaction time and chelating reagent play a key role in forming the hierarchical microspheres. The formation mechanism was proposed based on the evolution of this morphology as a function of hydrothermal time. The near-infrared luminescence of lanthanide ions (Er, Nd, and Yb) doped SrF2 microspheres were discussed in detail. In addition, the as-obtained SrF2:Eu3+ sample exhibits orange-red emission centered at 590 nm under excitation at 393 nm, while the SrF2:Tb3+ exhibits a strong green emission at 540 nm. The as-synthesized SrF2:Ln(3+) luminescent microspheres might find some potential applications in areas of photoluminescence, telecommunication and laser emission. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：328 / 332

页数：5

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