Study of the physical properties of amorphous Zr doped Al2O3 powders

被引：3

作者：

Kadari, Ahmed ^{[1
,2
]}

Mahi, Khaled ^{[3
]}

Faria, Luiz Oliveira ^{[2
]}

Saoula, Belkacem ^{[4
]}

Adila, Bouziane ^{[4
]}

机构：

[1] Ibn Khaldoun Univ Tiaret, Fac Sci Matter, Dept Chem, BP P 78 Zaaroura, Tiaret, Algeria

[2] Ctr Desenvolvimento Tecnol Nucl, Ave Antonio Carlos 6627,CP 941, BR-31270901 Belo Horizonte, MG, Brazil

[3] Univ Sci & Technol Mohamed Boudiaf, Plasma Phys Lab Conduct Mat & Their Applicat, BP 1505, Oran 31000, El Mnaouar, Algeria

[4] Ibn Khaldoun Univ Tiaret, Dept Phys, Engn Phys Lab, BP P 78 Zaaroura, Tiaret, Algeria

来源：

CHINESE JOURNAL OF PHYSICS | 2017年 / 55卷 / 01期

关键词：

Alumina; Sol-gel process; XRD; Optical properties; Doping; BAND-GAP; THERMOLUMINESCENCE; NANOPARTICLES; OXIDE;

D O I：

10.1016/j.cjph.2016.10.012

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Alumina (Al2O3) powders doped with different amounts of zirconium (Zr) ions were synthesized by the sol-gel process. The Zr concentration was changed from 0 to 3%. Here we attempted to fabricate Zr doped Al2O3 samples and characterized them for their optical and structural properties. Ultraviolet-Visible analysis (UV-Vis), infrared spectroscopy (FT-IR) and powder X-ray diffraction (XRD) have been used to characterize the optical properties, phase evolution and crystallinity of the obtained samples. X-ray diffraction patterns revealed that all the Al2O3 powders obtained were completely amorphous. An optical study was employed to determine the band gap of the samples. The transmittance had decreased from 90 to 86% and the band gap of pure Al2O3 was found to be 4.116 eV, and it was shifted to 4.038 eV for 3% Zr doped Al2O3. The results obtained in this study are discussed comparatively with those cited in the literature. (C) 2016 The Physical Society of the Republic of China (Taiwan). Published by Elsevier B.V. All rights reserved.

引用

页码：127 / 132

页数：6

共 20 条

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