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Gadolinium gallium garnet (GGG) polycrystalline powders doped with Nd,Yb were prepared by coprecipitation method. The structure, phase and properties of powders were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDS) and fluorescence spectroscopy. XRD analysis indicated that the crystallization of Nd,Yb:GGG powders occur at 900 ℃. SEM analysis showed that the morphology of the powders was irregular and the average radius is 68.74 nm. FTIR analysis manifested that pure Nd,Yb:GGG powders were formed at 900 ℃. The fluorescence spectrum revealed that the most strong emission of Nd,Yb:GGG powders was 1030 nm, which was attributed to 2F5/22F7/2 of Yb3+. The possible formation mechanism of Nd,Yb:GGG powders were preliminarily discussed.


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Preparation and properties of Nd,Yb:GGG polycrystalline nanopowders

Show Author's information Yanmin DONGJing SUN*( )Wensheng YUWeihang LIFei TENG
School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, China

Abstract

Gadolinium gallium garnet (GGG) polycrystalline powders doped with Nd,Yb were prepared by coprecipitation method. The structure, phase and properties of powders were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDS) and fluorescence spectroscopy. XRD analysis indicated that the crystallization of Nd,Yb:GGG powders occur at 900 ℃. SEM analysis showed that the morphology of the powders was irregular and the average radius is 68.74 nm. FTIR analysis manifested that pure Nd,Yb:GGG powders were formed at 900 ℃. The fluorescence spectrum revealed that the most strong emission of Nd,Yb:GGG powders was 1030 nm, which was attributed to 2F5/22F7/2 of Yb3+. The possible formation mechanism of Nd,Yb:GGG powders were preliminarily discussed.

Keywords: Nd,Yb:GGG, co-precipitation method, fluorescence

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Publication history

Received: 26 September 2012
Revised: 29 November 2012
Accepted: 01 December 2012
Published: 09 January 2013
Issue date: December 2012

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