Abstract
Nickel doped tin oxide (Sn 1− x Ni x O 2, where x = 0, 0.05, 0.07 and 0.09) nanoparticles with sub-5 nm size were synthesized using sol–gel method. The structural and compositional analyses were carried out using XRD, FESEM and EDAX. Electrical properties were studied using dielectric and impedance spectroscopy at room temperature. XRD analysis indicated the formation of single phase rutile structure of all the samples. The particle size was observed to vary from 5 nm to 2 nm as the nickel content was increased. The XRD and EDAX results corroborated the successful doping of Ni in the SnO 2 matrix. The dielectric constant ɛ′, ɛ″, loss tangent tan δ and ac conductivity σ ac were studied as a function of frequency and composition and the behaviour has been explained on the basis of Maxwell–Wagner model. Complex impedance analysis which was used to separate the grain and grain boundary contributions to the system suggests the dominance of grain boundary resistance in the doped samples.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.