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Novel dumbbell-like LaVO4:Eu3+ nanocrystals and effect of Ba2+ codoping on luminescence properties of LaVO4:Eu3+ nanocrystals

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Abstract

LaVO4:Eu3+ nanocrystals with different morphologies were synthesized via a simple hydrothermal method in a wide pH range. The as-synthesized samples were characterized by X-ray powder diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, and photoluminescence spectroscopy. The results showed that the pH value of the solution played a key role in the formation of the products with various morphologies, including micro-spheres, nanowires, dumbbell-like nanocrystals composed of nanowires. The photoluminescence measurement revealed that the luminescent properties of the samples were changed by varying their morphologies. The emission intensity of t-LaVO4:Eu3+ decreased with the Ba2+ doping concentration and that of m-LaVO4:Eu3+ increased with the Ba2+ doping concentration.

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Acknowledgments

Financial supported from the Cooperation Project in Industry, Education and Research of Guangdong Province and Ministry of Education of China (No. 2010B090400021) is highly acknowledged.

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  1. School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou, 510006, China

    Jianming Zhong & Weiren Zhao

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  1. Jianming Zhong
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Correspondence to Weiren Zhao.

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Zhong, J., Zhao, W. Novel dumbbell-like LaVO4:Eu3+ nanocrystals and effect of Ba2+ codoping on luminescence properties of LaVO4:Eu3+ nanocrystals. J Sol-Gel Sci Technol 73, 133–140 (2015). https://doi.org/10.1007/s10971-014-3504-4

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