Structural and optical properties of Tb3+ doped Y2O3 nanoparticles

被引：0
作者：
J. El Ghoul
L. El Mir
机构：
[1] Gabes University,Laboratory of Physics of Materials and Nanomaterials Applied at Environment (LaPhyMNE), Faculty of Sciences of Gabes
[2] Al Imam Mohammad Ibn Saud Islamic University (IMISU),Department of Physics, College of Sciences
来源：
Journal of Materials Science: Materials in Electronics | 2017年 / 28卷
关键词：
Differential Thermal Analyser; Y2O3; Terbium; Yttrium Oxide; Defect Content;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Y2O3 luminescent nanoparticles were synthesized via new protocol of sol–gel method combined with a furnace firing in air, using metal salt as precursor and an epoxide for hydrolysis. Effects of rare earth (Tb3+) doping on structural and luminescence properties of the produced nanophosphors have been investigated. The obtained nanopowders were characterized by various techniques such as thermogravimetric analyser (TGA), differential thermal analyser (DTA), transmission electron microscopy (TEM), X-ray diffraction (XRD), photoluminescence spectroscopy (PL) and photoluminescence excitation (PLE). After thermal treatment at different temperatures in air, the powder with an average particle size of 50 nm presents a green luminescence band in the visible range (544 nm). The intensity of the obtained PL band increases with of thermal treatment temperature and the PLE spectra present an intensive band in UV-range corresponding to Y2O3 band-gap. Different origins of this evolution will be discussed.
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页码：9066 / 9071
页数：5
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