Dielectric and pyroelectric studies of lead calcium titanate thin films

被引：0
|
作者：
Chopra, S [1 ]
Sharma, S [1 ]
Goel, TC [1 ]
Mendiratta, RG [1 ]
机构：
[1] Indian Inst Technol, Dept Phys, Adv Ceram Lab, New Delhi 110016, India
来源：
PROCEEDINGS OF THE 7TH INTERNATIONAL CONFERENCE ON PROPERTIES AND APPLICATIONS OF DIELECTRIC MATERIALS, VOLS 1-3 | 2003年
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D O I：
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中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Thin ferroelectric films of calcium modified lead titanate (Pb1-xCaxTiO3) have been prepared by sol gel spin coating process on ITO coated coming glass 7059 substrates. The values of x in our study are 0.20, 0.24 and 0.28. Characterization of these films by x-ray diffraction shows that the films exhibit tetragonal phase with perovskite structure. Dielectric, pyroelectric and ferroelectric studies carried out on these films have been reported and discussed. Dielectric constant of these films at room temperature varies from 78 to 90 while pyroelectric coefficient varies from 33 to 46 nC/cm(2)K. High pyroelectric figure of merit of PCT films have potential applications as pyroelectric sensor materials.
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页码：539 / 542
页数：4
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