MAGNETIC BEHAVIOR OF Ni-DOPED CuO NANOPARTICLES SYNTHESIZED BY MICROWAVE IRRADIATION METHOD

C. Thangamani, M. Ponnar, P. Priyadharshini, P. Monisha, S. S. Gomathi and K. Pushpanathan
Additional contact information
C. Thangamani: Nanomaterials Research Laboratory, Department of Physics, Government Arts College (Autonomous), Karur 639 005, India
M. Ponnar: Nanomaterials Research Laboratory, Department of Physics, Government Arts College (Autonomous), Karur 639 005, India
P. Priyadharshini: Nanomaterials Research Laboratory, Department of Physics, Government Arts College (Autonomous), Karur 639 005, India
P. Monisha: #x2020;PG & Research Department of Physics, Sri Sarada College for Women (Autonomous), Salem 636 016, India
S. S. Gomathi: #x2020;PG & Research Department of Physics, Sri Sarada College for Women (Autonomous), Salem 636 016, India
K. Pushpanathan: Nanomaterials Research Laboratory, Department of Physics, Government Arts College (Autonomous), Karur 639 005, India

Surface Review and Letters (SRL), 2019, vol. 26, issue 05, 1-11

Abstract: Nickel-substituted copper oxide nanoparticles at various concentrations were synthesized by the microwave irradiation technique. The consequence of nickel doping on crystal structure, optical properties, and magnetic properties was examined by means of X-ray diffractometer, ultraviolet-visible spectrometer, Fourier transform infrared (FT-IR) spectrometer, transmission electron microscope, and vibrating sample magnetometer (VSM). X-ray diffraction analysis shows that the samples are monoclinic and their crystallite size varies from 25nm to 42nm, and lattice constant significantly increases with nickel concentration. Additional increase of nickel content (7%) decreases the lattice constant. TEM micrograph witnessed that the prepared nanoparticles were sphere-shaped and the particle distribution is in the range between 20 and 40nm. Bandgap measurement reveals that both undoped and nickel-doped copper oxides are direct bandgap semiconductor materials with bandgaps of 3.21 and 3.10eV, respectively, FT-IR spectra of the synthesized samples confirmed the nickel doping. VSM studies confirmed the ferromagnetic behavior of the synthesized samples at room temperature. The results revealed that the nickel-doped copper oxide nanoparticles synthesized via the microwave irradiation method exhibit better magnetic properties than the undoped copper oxide.

Keywords: CuO nanoparticles; energy gap; microstructure; magnetic moment; crystalline size (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X18501846
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:26:y:2019:i:05:n:s0218625x18501846

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0218625X18501846

Access Statistics for this article

Surface Review and Letters (SRL) is currently edited by S Y Tong

More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().