Ferroelectric oxide ceramics have been investigated as possible alternatives to highly sensitive triglycine
sulfate (TGS) crystals for their use in room temperature infrared detectors. In this paper dielectric and
pyroelectric properties of some ceramics based on modified lead titanate and others are presented. The
figures-of-merit of these ceramics calculated using the measured dielectric and pyroelectric data are
presented. The relative advantages and disadvantages of the principal ceramic systems are also compared
with existing materials reported in the literature.
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