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Proceedings Paper

Advances in large-area Hg1-xCdxTe photovoltaic detectors for remote sensing applications
Author(s): Priyalal S. Wijewarnasuriya; Majid Zandian; Jamie D. Phillips; Dennis E. Edwall; Roger E. DeWames; Gernot Hildebrandt; Jagmohan Bajaj; Jose M. Arias; Arvind I. D'Souza; Fergus E. Moore
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Paper Abstract

State-of-the-art large area photovoltaic detectors fabricated in HgCdTe grown by Molecular Beam Epitaxy have been demonstrated for the Crosstrack Infrared Sounder instrument. Large area devices (1 mm in diameter) yielded excellent electrical and optical performance operating at 81K for LWIR band and at 98K for MW and SWIR bands. LWIR and MWIR detectors have near-theoretical electrical performance, and AR-coated quantum efficiency is greater than 0.70. Measured average RoA at 98K is 2.0E7 W-cm2 and near-theoretical quantum efficiencies greater than 0.90 were obtained on SWIR detectors. These state-of-the-art large area photovoltaic detector results reflect high quality HgCdTe grown by Molecular Beam Epitaxy on CdZnTe substrates in all three spectral bands of interest.

Paper Details

Date Published: 12 November 2001
PDF: 9 pages
Proc. SPIE 4454, Materials for Infrared Detectors, (12 November 2001); doi: 10.1117/12.448180
Show Author Affiliations
Priyalal S. Wijewarnasuriya, Rockwell Science Ctr. (United States)
Majid Zandian, Rockwell Science Ctr. (United States)
Jamie D. Phillips, Rockwell Science Ctr. (United States)
Dennis E. Edwall, Rockwell Science Ctr. (United States)
Roger E. DeWames, Rockwell Science Ctr. (United States)
Gernot Hildebrandt, Rockwell Science Ctr. (United States)
Jagmohan Bajaj, Rockwell Science Ctr. (United States)
Jose M. Arias, Rockwell Science Ctr. (United States)
Arvind I. D'Souza, Boeing Co. (United States)
Fergus E. Moore, ITT Aerospace Communications (United States)

Published in SPIE Proceedings Vol. 4454:
Materials for Infrared Detectors
Randolph E. Longshore, Editor(s)

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