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

Author

Mantese, Joseph V. ; Micheli, Adolph L. ; Schubring, Norman W. ; Catalan, Antonio B. ; Soch, Kevin L. ; Ng, Kim ; Klapper, Stuart H. ; Lopez, Richard J. ; Lung, Gerald

Author_Institution

General Motors Res. Lab., Warren, MI, USA

Volume

40

Issue

2

fYear

1993

fDate

2/1/1993 12:00:00 AM

Firstpage

320

Lastpage

324

Abstract

Potassium tantalum niobate (KTN) films, 10-μm thick, with a nominal Curie temperature of -20°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-μm centers and 50-μm². Using f/1 optics and a 2.5-V/μm ² detector bias, a noise equivalent temperature (NEΔT) of 0.65°C was obtained for the best 1% of the pixels when the detector and blackbody source operated at 25°C

Keywords

ferroelectric devices; ferroelectric thin films; image sensors; infrared imaging; military equipment; potassium compounds; 128 pixel; 16384 pixel; 25 degC; Curie temperature; IR imaging; KTaO₃NbO₃; Pt-Y₂O₃; Y₂O₃ substrate; metalorganic deposition; military thermal imaging; noise equivalent temperature; uncooled focal plane arrays; Ferroelectric materials; Infrared detectors; Infrared imaging; Niobium compounds; Optical films; Optical imaging; Permittivity; Phase change materials; Sensor arrays; Temperature;

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/16.182508

Filename

182508