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Proceedings Paper

Performance of InAsSb-based infrared detectors with nBn design
Author(s): S. A. Myers; A. Khoshakhlagh; J. Mailfert; P. Wanninkhof; E. Plis; M. N. Kutty; H. S. Kim; N. Gautam; B. Klein; E. P. G. Smith; S. Krishna
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Paper Abstract

Our group is investigating nBn detectors based on bulk InAs(1-x)Sb(x) absorber (n) and contacts (n) with an AlAs(1-x)Sb(x) barrier (B). The wide-band-gap barrier material exhibits a large conduction band offset and small valence band offset with respect to the narrow-band-gap absorber material. An important matter to explore in this design is the barrier parameters (material, composition and doping concentration) and how they effect the operation of the device. This paper investigates AlAs(1-x)Sb(x) barriers with different compositions and doping levels and their effect on detector characteristics, in particular, dark current density, responsivity and specific detectivity.

Paper Details

Date Published: 28 August 2010
PDF: 9 pages
Proc. SPIE 7808, Infrared Remote Sensing and Instrumentation XVIII, 780805 (28 August 2010); doi: 10.1117/12.862295
Show Author Affiliations
S. A. Myers, Ctr. for High Technology Materials, Univ. of New Mexico (United States)
A. Khoshakhlagh, Ctr. for High Technology Materials, Univ. of New Mexico (United States)
J. Mailfert, National Institute of Applied Sciences (France)
P. Wanninkhof, Univ. of Florida (United States)
E. Plis, Ctr. for High Technology Materials, Univ. of New Mexico (United States)
M. N. Kutty, Ctr. for High Technology Materials, Univ. of New Mexico (United States)
H. S. Kim, Ctr. for High Technology Materials, Univ. of New Mexico (United States)
N. Gautam, Ctr. for High Technology Materials, Univ. of New Mexico (United States)
B. Klein, Ctr. for High Technology Materials, Univ. of New Mexico (United States)
E. P. G. Smith, Raytheon Vision Systems (United States)
S. Krishna, Ctr. for High Technology Materials, Univ. of New Mexico (United States)


Published in SPIE Proceedings Vol. 7808:
Infrared Remote Sensing and Instrumentation XVIII
Marija Strojnik; Gonzalo Paez, Editor(s)

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