Architectures of YF3:Eu3+ solid and hollow sub-microspheres: a facile arginine-assisted hydrothermal synthesis and luminescence properties

作者：Liu Guixia^*; Li Xia; Dong Xiangting; Wang Jinxian

来源：Journal of Nanoparticle Research, 2011, 13(9): 4025-4034.

DOI：10.1007/s11051-011-0332-0

• YF3:Eu3+
• Hollow spheres
• Arginine
• Luminescence materials
• Nanocomposite

Solid and hollow YF3:Eu3+ spheres assembled by nanorods have been successfully synthesized via a facile arginine-assisted hydrothermal method and followed by a subsequent heat-treatment process. The experimental results reveal that the as-prepared YF3:Eu3+ spheres are composed of the nanorods with a diameter of 20-50 nm and a length of 200-500 nm, the morphologies of YF3:Eu3+ have been changed from solid to hollow spheres assembled by nanorods. With increase of hydrothermal temperature and time, the diameter of YF3:Eu3+ spheres can be controlled from 300 to 800 nm. The solid and hollow spheres show an intense orange red emission peak near 595 nm, corresponding to the D-5(0) -> F-7(1) transition of Eu3+. The possible formation mechanism for the hollow spheres has been presented in detail. This amine acid-assisted method is very simple, economic and environmental friendly for organic-free solvent, which would be potentially used in synthesizing other hollow materials.

• 出版日期2011-9
• 单位长春理工大学