Cairo University

MTPR Journal

 

STUDY OF THE ELECTRICAL PROPERTIES AND THE MICROSTRUCTURE OF ZnO DOPED WITH CuO AND Na3BiO3

2016-12-17
M. M. Saadeldin1, Osama A. Desouky2, Mai M. Younis3, and Marwan M. Ahmed4
1. Prof. of solid state physics, Faculty of Science, Cairo
Univ.
2. Bibis Higher Institute of Engineering (BHIE), Sharqia.
3. Science Specialist, Micro Analytical Center, Faculty of Science,
Cairo Univ
4. Colonel eng., Faculty member, air defense col

Vol./Issue: 16 , id: 218

Mixtures of ZnO doped with CuO and Na3BiO3 as additive were prepared by solid state reaction from the calcined oxides. SEM and AFM revealed the presence of inter-granular phase. Additives present in grain boundaries between ZnO grains.XRD showed that no binary compound was formed and there are increase in dislocation density with additives. The conductivity and the dielectric constant are highly dependent on the microstructure of conducting grains surrounded by this insulating oxide barrier. The amounts of additives affect the coefficient of non-linearity and breakdown voltage. Microstructure had been studied with SEM and AFM.