Affiliation of Author(s):

机电工程学院

Journal:

Solid State Sciences

Key Words:

中文关键字：发光，英文关键字：Europium

Abstract:

Hollow europium-doped yttrium orthovanadate (YVO4:Eu3þ) microspheres were fabricated via a sodium dodecyl sulfate (SDS)epolyethylene glycol (PEG)-assisted hydrothermal technique. The as-synthesized hollow YVO4:Eu3þ microspheres were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and photoluminescence spectroscopy (PL). The obtained results showed that the morphology and size of the hollow microspheres have a strong dependence on the hydrothermal reaction time of the YVO4:Eu3þ powders. It is believed that the SDSePEG clusters perform a function of dual soft-template that results in a unique template-induced secondary assembly in the one-pot synthesis of hollow YVO4:Eu3þ microspheres. The photoluminescence measurement revealed that the YVO4:Eu3þ powders with a spherical hollow shape have better red luminescence compared to the YVO4:Eu3þ solid microspheres. As a result, the controlled synthesis of hollow YVO4:Eu3þ microspheres not only has a great theoretical significance in studying the three-dimensional control and selective synthesis of inorganic materials but also benefits the potential applications based on hollow YVO4:Eu3þ microspheres owing to reducing the usage of expensive rare-earth elements.

Note:

王娟

First Author:

caianjiang,ruanxiaoguang,许云华,wangjuan

Indexed by:

Journal paper

Volume:

卷：14

Issue:

期：

Page Number:

页：1018e1022

Translation or Not:

no

Date of Publication:

2012-09-01