Pyroelectric infrared sensors made of La-modified PbTiO<sub>3</sub> thin films and their applications

Kamada, Takeshi; Takayama, Ryoichi; Fujii, Satoru; Deguchi, Takashi; Hirao, Takashi

doi:10.1080/10584589508013575

Cited by 12 publications

(1 citation statement)

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“…The optimal polymer thickness for the membrane structure was 1 pm and was relatively independent of frequency, whereas there was a strong frequency dependence for frequency (Hz) the thermal insulating layer structure. The best calculated specific detectivities were almost as high as those experimentally achieved with La-modified PbTiOB thin film detectors by Kamada et al [148].…”

Section: Detectors With Silicon Substratessupporting

confidence: 63%

Pyroelectric polymer electrets

Bauer

Lang

1996

IEEE Trans. Dielect. Electr. Insul.

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Pyroelectricity is the electrical response of a material to a change in temperature. It exists in polymers which contain spontaneous or frozen polarization resulting from oriented dipoles. This review describes the physical basis for the existence of the pyroelectric effect and discusses its behavior in a number of amorphous, semicrystalline, crystalline and liquid crystalline polymers. Some of the techniques for measurement of the pyroelectric effect are presented and its use in pyroelectric relaxation spectroscopy and thermal analysis is described. The spatial distribution of polarization and space charge through the thickness of polymer films can be determined by several thermal pyroelectric techniques. Recent developments in the integration of pyroelectric polymer infrared detectors with solid-state silicon devices are described. One of the most important recent applications of polymers is in photopyroelectric spectroscopy which can be used for the determination of a number of thermal and optical properties of materials. Finally, some miscellaneous applications in physics, chemistry and biology are presented.Polar liquid crystals (LC) seem to,be very interesting materials for pyroelectric applications, due to the strong orientation of

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Section: Detectors With Silicon Substratessupporting

confidence: 63%

Pyroelectric polymer electrets

Bauer

Lang

1996

IEEE Trans. Dielect. Electr. Insul.

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Thin Films

Wasa¹,

Setsune²

1999

Wiley Encyclopedia of Electrical and Electronics Engineering

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Thin Films

Wasa¹,

Setsune²

2005

Encyclopedia of RF and Microwave Engineering

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Thin film ferroelectric materials and hexagonal piezoelectric materials are essential for fabrication of electronic and/or photonic devices. Ferroelectric materials are dielectrics that have a spontaneous polarization with nonlinear hysteretic properties and show several unique properties including high dielectric permittivity, high piezoelectricity, high pyroelectricity, and high electrooptic characteristics. Thin film ferroelectric materials have a high potential for miniaturization and/or integration with the semiconductive devices. Thin films are also important to the understanding of ferroelectricity. Thin films are commonly fabricated by depositing individual atoms on a substrate. The film thickness is typically less than several micrometers.

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Pyroelectric infrared sensors made of La-modified PbTiO₃ thin films and their applications

Cited by 12 publications

References 5 publications

Pyroelectric polymer electrets

Pyroelectric polymer electrets

Thin Films

Thin Films

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Pyroelectric infrared sensors made of La-modified PbTiO3 thin films and their applications

Cited by 12 publications

References 5 publications

Pyroelectric polymer electrets

Pyroelectric polymer electrets

Thin Films

Thin Films

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Product

Resources

About

Pyroelectric infrared sensors made of La-modified PbTiO₃ thin films and their applications