Hydrothermal Synthesis of GdVO4:Eu 3+ Phosphors by Optimizing its Preparation Conditions

Ying Lin Yan; Yun Hua Xu; Juan Wang; Zhen Xing Luan

doi:10.4028/www.scientific.net/AMR.287-290.1360

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 287-290Hydrothermal Synthesis of GdVO4:Eu 3+ Phosphors by...

Hydrothermal Synthesis of GdVO₄:Eu ³⁺ Phosphors by Optimizing its Preparation Conditions

Abstract:

Eu³⁺ -doped GdVO₄ powders have been synthesized via a novel hydrothermal method using commercially available Gd₂O₃, NH₄VO₃ and Eu₂O₃ as the reacting precursors. The influences of several important parameters, such as hydrothermal temperature, reaction time and pH value, of the experiment were investigated. The obtained samples were characterized by X-ray powder diffraction (XRD), field emission scanning electron microscopy (FESEM), and photo-luminescence spectroscopy (PL). The experimental results showed that the optimal reaction condition was processed at 180°C for 12 h and adjusted pH value to 4. The morphology of products was uniform pseudo-octahedron with a little conglomeration. All the phosphors exhibit the characteristic dominant red emission of Eu³⁺ ion (⁵D₀ → ⁷F₂) at 618nm.

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Advanced Materials Research (Volumes 287-290)

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1360-1364

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https://doi.org/10.4028/www.scientific.net/AMR.287-290.1360

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July 2011

Authors:

Ying Lin Yan, Yun Hua Xu, Juan Wang, Zhen Xing Luan

Keywords:

GdVO₄, Hydrothermal, Phosphor, Rare Earth (RE)

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