Structural, dielectric relaxation and electrical conductivity behavior in MgO powders synthesized by sol-gel

被引：23
|
作者：
Mbarki, R. [1 ]
Mnif, A. [1 ]
Hamzaoui, A. H. [1 ]
机构：
[1] Ctr Natl Rech Sci Mat, LVMU, Tunis 8027, Tunisia
来源：
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING | 2015年 / 29卷
关键词：
MgO; Sol-gel; Dielectric; Electrical conductivity; MAGNESIUM-OXIDE NANOCRYSTALS; THIN-FILMS; OPTICAL-PROPERTIES; IONIC-CONDUCTION; GROWTH; ADSORPTION; SIZE;
D O I：
10.1016/j.mssp.2014.05.036
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Magnesium oxide powders (MgO) were synthesized via a sol-gel process (SG). The crystalline structure, particle size, and roughness weight loss were investigated through X-ray diffraction, atomic force microscopy, Differential Thermal Analysis (DTA) and Thermal Gravimetric Analysis (TGA). X-ray diffraction patterns revealed that MgO powders obtained were crystallized. The crystallite size of the obtained MgO powders is equal to 79.8 nm. The morphology is displayed as granular and porous. The RMS value is determined as 0.3158 nm whereas the weight loss is around 0.70%. Complex impedance spectroscopy was used to examine electrical properties. The dielectric phenomena and electrical conductivity properties of MgO powders were studied to improve the conductivity. The activation energy of the MgO powders in the temperature study was found to be 0.178 eV. (C) 2014 Elsevier Ltd. All rights reserved,
引用
收藏
页码：300 / 306
页数：7
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