Abstract
Pb1−xCaxTiO3 thin films with x = 0−0.3 for pyroelectric applications were deposited on platinized silicon wafers by chemical solution processing. Ca-substitution for Pb in PbTiO3 results in a reduced c/a ratio of the unit cell, which, in turn, leads to better pyroelectric properties. Control of nucleation and growth during rapid thermal annealing to 650 °C allowed the formation of either highly porous or dense (111) oriented films. The inclusion of pores creates a matrix-void composite with the low permittivity desired for pyroelectric applications, resulting in a high figure of merit. The growth mechanisms for the microstructural evolution of both dense and porous films were analyzed by x-ray diffraction, transmission electron microscopy, scanning electron microscopy, and Rutherford backscattering spectrometry and allowed establishment of microstructure/property relationships.
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Dates
Type | When |
---|---|
Created | 17 years, 6 months ago (March 5, 2008, 9:26 p.m.) |
Deposited | 4 years, 6 months ago (Feb. 24, 2021, 5:10 p.m.) |
Indexed | 1 month, 4 weeks ago (July 7, 2025, 9:07 a.m.) |
Issued | 26 years, 4 months ago (May 1, 1999) |
Published | 26 years, 4 months ago (May 1, 1999) |
Published Online | 14 years, 7 months ago (Jan. 31, 2011) |
Published Print | 26 years, 4 months ago (May 1, 1999) |
@article{Seifert_1999, title={Microstructural evolution of dense and porous pyroelectric Pb1−xCaxTiO3 thin films}, volume={14}, ISSN={2044-5326}, url={http://dx.doi.org/10.1557/jmr.1999.0272}, DOI={10.1557/jmr.1999.0272}, number={5}, journal={Journal of Materials Research}, publisher={Springer Science and Business Media LLC}, author={Seifert, Andreas and Sagalowicz, Laurent and Muralt, Paul and Setter, Nava}, year={1999}, month=may, pages={2012–2022} }