Lead Doping of Wet-Chem. PZT 95/5 for Enhanced Electrical Performance in Ferroelectric Power Supply Applications

Stephen D.G. Charles; James D.S. Evans; David H. Bennett

doi:10.4028/www.scientific.net/AST.45.2400

Paper Titles

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Investigation of ZnO Based Thin Films as Resistance Materials with Small Temperature Coefficients
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Gate Materials and Fabrication-Processes of Metal-Ferroelectric-Insulator-Semiconductor Memory FETs with Long Data Retention
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Nanoscale Ferroelectrics
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Lead Doping of Wet-Chem. PZT 95/5 for Enhanced Electrical Performance in Ferroelectric Power Supply Applications
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Fabrication, Microstructure and Mechanical Properties Relations of Ferroelectric Barium Titanate Reinforced with Alumina Micro/Nano Particulates
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Relaxor Single Crystals with Giant k₃₁ Mode
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Electromechanical Properties of Ferroelectric Thin Films for Piezoelectric MEMS Applications
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Piezoelectric Ceramics Based on Perovskite Solid Solutions with MPB - Mechanochemical Activation and Texturing for High Sensitivity and Power
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HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 45Lead Doping of Wet-Chem. PZT 95/5 for Enhanced...

Lead Doping of Wet-Chem. PZT 95/5 for Enhanced Electrical Performance in Ferroelectric Power Supply Applications

Abstract:

Wet chemistry produced niobium modified PZT 95/5 was synthesised and processed for use in a ferroelectric power supply. The electrical performance of ferroelectric power supply components can be characterised by the remnant polarisation for the material, which is found to follow closely with density. The effects of doping the wet chemistry derived oxide powder with additional PbO via a traditional mixed oxide route were assessed as a function of density and remnant polarisation. The results have shown a gradual improvement followed by a sharp deterioration in density and electrical properties as PbO additions increase and exceed a certain level. As a result of lead volatilisation during subsequent processing steps, the actual lead content for the optimum PbO dopant level was in the region of theoretical stoichiometry, which in part concludes the findings of this study. Further conclusions are made in reference to the effect of excessive PbO on the material’s processing characteristics.