Infrared imaging using uncooled focal plane arrays of unreticulated 10- mu m potassium tantalum niobate films

Infrared imaging using uncooled focal plane arrays of unreticulated 10- mu m potassium tantalum niobate films

Potassium tantalum niobate (KTN) films, 10- mu m thick, with a nominal Curie temperature of -20 degrees C were formed on polished platinum-coated sacrificial yttria substrates by metalorganic deposition (MOD). These KTN films were used to fabricate focal plane arrays consisting of 128*128 pixels wit...

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Veröffentlicht in:IEEE transactions on electron devices 1993-02, Vol.40 (2), p.320-324
Hauptverfasser: Mantese, J.V., Micheli, A.L., Schubring, N.W., Catalan, A.B., Soch, K.L., Ng, K., Klapper, S.H., Lopez, R.J., Lung, G.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Electronics
Exact sciences and technology
Ferroelectric materials
Infrared detectors
Infrared imaging
Niobium compounds
Optical films
Optical imaging
Optoelectronic devices
Permittivity
Phase change materials
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Sensor arrays
Temperature
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Zusammenfassung:Potassium tantalum niobate (KTN) films, 10- mu m thick, with a nominal Curie temperature of -20 degrees C were formed on polished platinum-coated sacrificial yttria substrates by metalorganic deposition (MOD). These KTN films were used to fabricate focal plane arrays consisting of 128*128 pixels with each pixel on 50- mu m centers and 50- mu m/sup 2/. Using f/1 optics and a 2.5-V/ mu m/sup 2/ detector bias, a noise equivalent temperature (NE Delta T) of 0.65 degrees C was obtained for the best 1% of the pixels when the detector and blackbody source operated at 25 degrees C.< >
ISSN:0018-9383
1557-9646
DOI:10.1109/16.182508