期刊
PHYSICA B-CONDENSED MATTER
卷 504, 期 -, 页码 63-68出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physb.2016.10.011
关键词
NiO nanoparticles; Electrical properties; Dielectric properties
Nickel oxide nanoparticles were synthesized using low cost sol-gel method. The structure of as prepared NiO nanoparticles has been confirmed from X-ray diffraction (XRD), scanning electron microscope with energy dispersive X-ray (SEM and EDX) spectroscopic analysis. The electrical and dielectric properties were characterized by complex impedance spectroscopy as a function of frequency at different temperatures. To study the dielectric behavior of the nanoparticles different plots like Nyquist plot, modulus plot and Bode plot were used. Also the frequency dependent ac conductivity is analyzed and the activation energy is calculated. The dielectric constant and dielectric loss as a function of frequency at various temperatures are also studied.
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