Synthesis and photoluminescent properties of Gd3O4Br:Er3+ phosphors prepared by solid-state reaction method

被引：5
作者：
Zhang, Xinbo [1 ]
Wang, Xiaofeng [1 ]
Qiao, Yanmin [1 ]
Guo, Hai [1 ]
机构：
[1] Zhejiang Normal Univ, Dept Phys, Jinhua 321004, Zhejiang, Peoples R China
来源：
OPTICAL MATERIALS | 2009年 / 32卷 / 01期
关键词：
Gd3O4Br:Er3+; Raman spectra; Upconversion; UP-CONVERSION LUMINESCENCE; ER3+-ZRO2 NANOCRYSTALS; EMISSION PROPERTIES; ZRO2; NANOCRYSTALS; Y2O3; FLUORESCENCE; BLUE; RED; GREEN; IONS;
D O I：
10.1016/j.optmat.2009.07.013
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Pure orthorhombic Gd3O4Br:Er3+ upconversion phosphors were synthesized by a solid-state reaction method and the structural properties of Gd3O4Br:Er3+ were investigated by X-ray diffraction; field emission scanning electron microscopy, Raman spectroscopy and Fourier transform infrared spectroscopy. The results show that Gd3O4Br has low phonon cutoff energy, indicating that Gd3O4Br:Er3+ may have high luminescent efficiency. Intense green (514-582 nm) and strong red (645-692 nm) upconverted luminescence of Gd3O4Br:Er3+ were observed under 980 nm laser excitation. The bright green emission is visible to the naked eyes even for 1 mW of the pump power (980 nm) for Gd3O4Br:Er3+ (0.1%) samples, indicating that Gd3O4Br:Er3+ may be used as upconversion phosphors. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：216 / 220
页数：5
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