![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
Pb(Zr0.70Ti0.30)O3 (PZT)/PbTiO3 (PT) and Pb(Zr0.70Ti0.30)O3(PZT)/BaTiO3 (BT) multilayer films were prepared on Pt/Ti/SiO2/Si substrates using metallorganic sol-gel processing. The effect of the thickness of BT or PT layers on microstructure and dielectric and ferroelectric properties are studied. An appreciable increase in the breakdown field strength (EB), decrease in coercive field (EC) and leakage current (IL), and great improvements in the fatigue behavior with increasing number of BT or PT layers, are observed. The improvements of dielectric and ferroelectric properties of PZT/BT and PZT/PT multilayer films indicated the important role of BT or PT interlayer for PZT capacitors. Furthermore the relationship between microstructure and dielectric properties is also discussed.