Advances in large-area Hg1-xCdxTe photovoltaic detectors for remote sensing applications

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

doi:10.1117/12.448180

12 November 2001 Advances in large-area Hg_1-xCd_xTe photovoltaic detectors for remote sensing applications

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

Author Affiliations +

Proceedings Volume 4454, Materials for Infrared Detectors; (2001) https://doi.org/10.1117/12.448180
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

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.

Citation Download Citation

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, and Fergus E. Moore "Advances in large-area Hg_1-xCd_xTe photovoltaic detectors for remote sensing applications", Proc. SPIE 4454, Materials for Infrared Detectors, (12 November 2001); https://doi.org/10.1117/12.448180

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