Hydrothermal synthesis and luminescence properties of Yb3+ doped rare earth stannates

被引：27

作者：

Jin, Dalai ^{[1
,2
]}

Yu, Xiaojing ^{[2
]}

Yang, Hong ^{[2
]}

Zhu, Hongliang ^{[2
]}

Wang, Lina ^{[2
]}

Zheng, Yifan ^{[1
]}

机构：

[1] Zhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou 310014, Zhejiang, Peoples R China

[2] Xiasha Univ Town, Zhejiang Sci Tech Univ, Ctr Mat Engn, Hangzhou 310018, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 474卷 / 1-2期

关键词：

Rare earth alloys and compounds; Nanostructured materials; Luminescence; CHARGE-TRANSFER LUMINESCENCE; SCINTILLATION PROPERTIES; SINGLE-CRYSTALS; NANOCRYSTALS; TEMPERATURE; ALUMINATE; VANADATE; GROWTH; OXIDES; IONS;

D O I：

10.1016/j.jallcom.2008.06.159

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：

Yb3+ doped rare earth stannate [Ln(2)Sn(2)O(7) (Ln = La, Y, Lu, Gd)] nanocrystals were successfully prepared by a simple hydrothermal method. All the products were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM), which revealed that they are pyrochlore-type rare earth stannate nanocrystals with the diameter of about 15 run. Room temperature photoluminescence spectra showed that the Y2Sn2O7:Yb3+ and Lu2Sn2O7:Yb3+ nanocrystals exhibited strong broad emission bands centered at about 532 and 500 nm which was reported for the first time, while no obvious luminescence properties were found in the La2Sn2O7:Yb3+ and Gd2Sn2O7:Yb3+ nanocrystals. It was also found that the room temperature quenching concentrations of the Y2Sn2O7:Yb3+ and Lu2Sn2O7:Yb3+ nanocrystals were 3% and 2%, respectively. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：557 / 560

页数：4

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