High Performance Dual Band Photodetector Arrays for MWIR/LWIR Imaging

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$599,371.00
Award Year:
2008
Program:
SBIR
Phase:
Phase II
Contract:
NNL08AA13C
Agency Tracking Number:
067317
Solicitation Year:
2006
Solicitation Topic Code:
S6.01
Solicitation Number:
n/a
Small Business Information
SVT Associates
7620 Executive Drive, Eden Prairie, MN, 55344-3677
Hubzone Owned:
N
Socially and Economically Disadvantaged:
Y
Woman Owned:
N
Duns:
876868647
Principal Investigator:
Yiqiao Chen
Principal Investigator
(952) 934-2100
chen@svta.com
Business Contact:
Leslie Price
Contract Administrator
(952) 934-2100
price@svta.com
Research Institution:
n/a
Abstract
This proposed Phase II program seeks to create dual-band pixel-collocated MWIR/LWIR photodetector arrays based on III-V semiconductor materials in a Type-II superlattice structure. The Type-II superlattice offers a customizable cutoff wavelength while maintaining a lattice-matched condition to the host substrate. This superlattice also has lower Auger-recombination, which reduces dark current noise, than HgCdTe solutions, and is sensitive to normal incidence radiation, in contrast to QWIP approaches. The Phase I efforts successfully designed, fabricated and characterized a Type-II dual band IR photodetector. The superlattice material growth will be further optimized in the Phase II, along with modifying the fabrication steps required to realize dual-band photodetector arrays.

* information listed above is at the time of submission.

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