Abstract
Zinc stannate (Zn 2SnO 4) powders were synthesized by chemical co-precipitation method using stannic chloride pentahydrate (SnCl 4·5H 2O) and zinc acetate (Zn(CH 3COO) 3·4H 2O) as precursors in aqueous medium. The influence of sintering temperatures on the structural, compositional, dielectric, electrical and impedance properties has been studied. X-ray diffraction study reveals that samples sintered at 400–1200 °C show combined phases viz. ZnO, SnO 2, Zn 2SnO 4. The observed binding energies of Sn 3d 5/2, Zn 2p 3/2 and O 1s reveal that Sn and Zn are present in oxidized state (Sn–O–Zn). We studied interparticle interactions like grains, grain boundary effects using complex impedance spectroscopy.
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