Exploring the dielectric behavior of Co doped ZnO nanoparticles synthesized by wet chemical route using impedance spectroscopy

被引：67

作者：

Arshad, Mohd ^{[1
]}

Ahmed, Arham S. ^{[1
]}

Azam, Ameer ^{[1
,2
]}

Naqvi, A. H. ^{[1
]}

机构：

[1] Aligarh Muslim Univ, Dept Appl Phys, Ctr Excellence Mat Sci Nanomat, Aligarh, Uttar Pradesh, India

[2] King Abdulaziz Univ, Ctr Nanotechnol, Jeddah 21413, Saudi Arabia

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2013年 / 577卷

关键词：

Oxide materials; Sol-gel process; X-ray diffraction; Dielectric response; PULSED-LASER-DEPOSITION; ZINC-OXIDE FILMS; MAGNETIC-PROPERTIES; SNO2; NANOPARTICLES; OPTICAL-PROPERTIES; TEMPERATURE; NANOSTRUCTURES; IONS;

D O I：

10.1016/j.jallcom.2013.06.035

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In the present investigation, we report the synthesis of Co doped ZnO nanoparticles by wet chemical method with dopant content varying from 0% to 5%. The structural and dielectric properties of the samples were studied. Crystallite sizes were calculated from the X-ray diffraction (XRD) patterns, which were found to decrease with the increase in Co content. The XRD analysis also ensures that ZnO has a hexagonal (wurtzite) crystal structure and Co2+ ions were successfully incorporated into the lattice sites of Zn2+ ions. Dielectric constant was found to decrease with frequency and dopant concentration. Loss tangent results show the decrease in the hopping frequency of charge carriers between metal ions with doping. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：469 / 474

页数：6

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