2002•Piezoelectrics and AcoustoopticsRequires access

The Latest Research Progress of PLCT Series Pyroelectric Thin Films

Yuan Xiao

Abstract

Pyroelectric infrared detectors widely used in the fields of radiant thermometer,infrared spectrum measurement,secure protection,infrared thermal imaging and so on.Doped lead titanate(PT) is such a pyroelectric thin films that hold excellent property and comprehensive application.In this paper,the properties of lanthanum and calcium modified PT thin films were summarized.The preparation method,crystalline,ferroelectrical,pyroelectrical and permittivity properties of PCT,PLT,PLCT ferroelectric thin films for different composition were compared.The application potential fields of PLCT series pyroelectric thin films were also discussed.

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Key concepts: Pyroelectricity, Pyroelectric crystal, Materials science, Thin film, Infrared, Lead titanate, Optoelectronics, Ferroelectricity