HgCdTe photovoltaic linear array for the Cassini infrared spectrometer

Details HgCdTe photovoltaic linear array for the Cassini infrared spectrometer HgCdTe photovoltaic linear array for the Cassini infrared spectrometer

Jul 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994spie.2225..360b&link_type=abstract

Proc. SPIE Vol. 2225, p. 360-368, Infrared Detectors and Focal Plane Arrays III, Eustace L. Dereniak; Robert E. Sampson; Eds.

Computer Science

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Scientific paper

For the Cassini probe, focal plane number four of the Composite IR Spectrometer is equipped with a HgCdTe photovoltaic linear array. This 10 X 1 array detects in the 1100 to 1400 cm(superscript -1) wavenumber range with 200 X 200 micrometers (superscript 2) diodes at a pitch of 215 micrometers . Although background flux is near zero, peak detectivity, which is set by intrinsic diode noise, reaches 7.2 10(superscript 11) cmHz(superscript .5)W(superscript -1) at -30 mV bias whereas the theoretical limit is 7.8 10(superscript 11) cmHz(superscript .5)W(superscript -1). These performances are obtained by a simple ion implanted n/p planar technology on a liquid phase HgCdTe epilayer grown on lattice matched CdZnTe substrate.

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