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Owing to their superior ferroelectric properties, the lead family of ferroelectric perovskites is widely considered as candidates in capacitor and memory applications. This work studies the synthesis of lead zirconate titanate (PZT) thin film by organic metallic chemical vapor deposition, with the emphasis on chemical reaction kinetics in deposition process. The synthesis is carried out, using tetraethyl lead, tetra isopropyl titanate,tetra isobutyl zirconate as precursors .Plantinum(Pt/Ti/SiO2/Si) is used as substrate. The deposition temperature is set between 590-640℃. Single perovskite phase of PZT thin film can be synthesized at 590℃. The composition study of thin film, under a fixed reactant ratio and different deposition temperatures, reveals that lead oxide and titanium dioxide deposition rate increase with deposition temperature , zirconium oxide deposition rate remain unchanged. The activation energy for lead oxide is 8 kcal/mol, and 7~10 kcal/mol for titanium dioxide. The PbO excess increases with deposition temperature. Coupling of deposition temperature increase and titanium content in the feed stream results in converting PbO into PbTiO3.
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