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Pyroelectric infrared Lithium tantalite [(LiTaO3), LT] ceramic particles and silver nanoparticles have
been incorporated into a polyvinylidene fluoride-trifluoroethylene [P(VDF-TrFE) 70/30 mol%]
copolymer matrix to form composite films. The films were prepared using solvent casting method.
Electrical properties such as the dielectric constant, dielectric loss, and pyroelectric coefficient have been
measured as a function of temperature. In addition, materials' figures-of-merit have also been calculated
to assess their use in infrared detectors. The results show that the fabricated silver nanoparticles
incorporated lithium tantalite: polyvinylidene
fluoride-trifluoroethylene composite films may have a good
potential for uncooled infrared sensor applications.
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A. K. Batra, John Corda, Padmaja Guggilla, M. D. Aggarwal, M. E. Edwards, "Electrical properties of silver nanoparticles reinforced LiTaO3:P(VDF-TrFE) composite films," Proc. SPIE 7419, Infrared Systems and Photoelectronic Technology IV, 741904 (27 August 2009); https://doi.org/10.1117/12.824384