DOPED ZINC ALUMINATE SPINEL SYNTHESIZED BY HYDROTHERMAL METHOD

被引：0
|
作者：
Miron, I. [1 ]
Enache, C. [2 ]
Grozescu, I. [1 ]
机构：
[1] Politehn Univ Timisoara, Timisoara 300006, Romania
[2] Romanian Acad, Inst Chem Timisoara, Timisoara 300223, Romania
来源：
DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES | 2012年 / 7卷 / 03期
关键词：
Zinc aluminate; Hydrothermal method; Europium; Spinel; ZNAL2O4; NANOCRYSTALS; PHOTOLUMINESCENCE; COPRECIPITATION; EU3+;
D O I：
暂无
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
ZnAl2O4 spinel doped with Eu3+ ions was prepared by hydrothermal method. After hydrothermal treatment the sample was heated at 1000 degrees C. X-ray diffraction analysis confirmed the high crystallinity and purity of the sample and the average crystallite size calculated from the pattern was smaller then 40 nm. Optical properties of ZnAl2-xO4: Eu-x spinel were also determined. The band gap of ZnAl2-xO4:Eu-x spinel was found to be around 3.89 eV. The PLE measurements monitored at two excitation wavelengths (253 nm and 395 nm) confirmed the high luminescent properties of the sample prepared by hydrothermal method and heated at 1000 degrees C. The D-5(0)-> F-7(2) red emission centered at 617 nm was the most intense one.
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页码：967 / 972
页数：6
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