Current methods of pyroelectric composite production are incompatible with microelectronics fabrication techniques. Thin-film (l-5μm) inorganic/polymer composites have been produced using a spin-coating method. In the thickness range attainable a quarter-wave cavity for the enhanced absorption of infra-red radiation may be formed. Barium titanate, lead titanate, PZT and lithium tantalate have been incorporated as inorganic dispersoids. A vinylidene fluoride/trifluoroethylene copolymer acts as the host matrix. After the requisite poling procedure the thin film composite materials exhibit pyroelectric coefficients significantly greater than that of 70:30mol% vinylidene fluoride:trifluoroethylene copolymer. They also possess low values of relative permittivity due to the low volume percentages of inorganic material incorporated. As a result the dielectric noise figure of merit is greatly enhanced over conventional polymer pyroelectric materials. These materials are therefore suitable candidates for use in an integrated thermal imaging device.
No takes yet. Share an insight, caveat, or question.
Murphy et al. (1992) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: