Effect of Co doping on the structural and dielectric properties of ZnO nanoparticles

Journal Article · Mon May 23 04:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4947758· OSTI ID:22606336

Ram, Mast; Bala, Kanchan; Sharma, Hakikat; Negi, N. S. ^[1]

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1. Himachal Pradesh University Summehill Shimla (India)

This paper reports on the synthesis of Co doped Zn{sub 1-x}Co{sub x}O (x= 0.0, 0.01, 0.02, 0.03 and 0.05) nanoparticles by solution combustion method using urea as a fuel. The Structural and dielectric properties of the samples were studied. Crystallite sizes were obtained from X-ray diffraction (XRD) patterns whose values decreased with increase in Co concentration. The XRD study reveals that Co{sup 2+} ions substitute the Zn{sup 2+} ion without changing the wurtzite structure of pristine ZnO up to Co concentrations of 5%. The dielectric constants, dielectric loss (tanδ) and ac conductivity (σ{sub ac}) were studied as the function of frequency and composition, which have been explained by Maxwell-Wagner type interfacial polarization and discussed Koops phenomenological theory.

• OSTI ID: 22606336
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1731; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
COBALT ADDITIONS
CONCENTRATION RATIO
DIELECTRIC MATERIALS
DOPED MATERIALS
FREQUENCY DEPENDENCE
NANOPARTICLES
PERMITTIVITY
POLARIZATION
SYNTHESIS
X-RAY DIFFRACTION
ZINC IONS
ZINC OXIDES