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

被引：0
作者：
Jianming Zhong
Weiren Zhao
机构：
[1] Guangdong University of Technology,School of Physics and Optoelectronic Engineering
来源：
Journal of Sol-Gel Science and Technology | 2015年 / 73卷
关键词：
Luminescence; LaVO; :Eu; Nanocrystals; Hydrothermal method;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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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页码：133 / 140
页数：7
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