{"project":{"acronym":"","projectId":89538,"title":"Hydrogenation of Very Long Wavelength Infrared Focal Plane Arrays Based on Type II Superlattices","primaryTaxonomyNodes":[{"taxonomyNodeId":10741,"taxonomyRootId":8816,"parentNodeId":10740,"level":3,"code":"TX08.1.1","title":"Detectors and Focal Planes","definition":"Detectors, focal planes and readout integrated circuits provide large-format array technologies that require high quantum efficiency (QE); low noise, high resolution, uniform, and stable response; low power and cost; and high reliability. These technologies include low-noise, high-speed, low-power and radiation hardened readout integrated circuit (ROIC) electronics; superconducting sensors; spectral detectors; polarization-sensitive detectors; radiation-hardened detectors; and micro-Kelvin and sub-Kelvin high sensitivity detectors that cover the spectrum from submillimeter wave (Far-IR) to X-ray.","exampleTechnologies":"Backshort Undergrid bolometer arrays, Mercury Cadmium Telluride and Strained Superlattice Arrays, charge coupled devices, sidecar readout integrated circuits, radiometric calibration and abnormality correction algorithms (e.g. non-uniformity)","hasChildren":false,"hasInteriorContent":true}],"startTrl":3,"currentTrl":5,"endTrl":5,"benefits":"Large format VLWIR FPAs will be a valuable asset for a variety of Earth, planetary and astrophysics science experiments that require infrared imaging. The fabrication of large format VLWIR FPAs with high quantum efficiency, broad spectral response extending to 14 microns, and low noise will greatly increase the imaging capability of Discovery 13/14, New Frontiers 4, Europa Jupiter System, Mars 2018 and other space exploration missions. These detectors can also be used on Earth-based systems, such as in NASA?s Aqua satellite for meteorological infrared weather tracking of storm systems, the hyperspectral infrared imager (HYSPIRI), or the climate absolute radiance and refractivity observatory (CLARREO). Another potential application of the proposed technology is the Triangulation and LIDAR Automated Rendezvous and Docking (TriDAR) system that integrates a thermal imager used by NASA for real-time guidance during rendezvous and docking of the International Space Station.
Single detector and small arrays sensitive to VLWIR radiation have a wide range of commercial applications, such as spectrometry, thermometry, highâend industrial manufacturing, and hotspot detection. Low cost arrays with lightweight characteristics will meet various requirements in meteorology, geophysics, geology, law enforcement, remote environmental sensing, search and rescue, and emergency response including firefighting. If operating temperatures can be enhanced, the product would also have applications in medical systems, commercial airlines, and ground transportation.","description":"We propose to advance the Ga-free InAs/InAsSb type II superlattice (T2SL) materials technology for very long wavelength infrared (VLWIR) focal plane arrays (FPAs) by passivating lifetime-limiting defects with hydrogen from inductively coupled plasma (ICP) H2-plasmas. In Phase II, 1k x 1k detector arrays will be fabricated and hybridized to matching read-out integrated circuits for implementation in future Earth and Planetary science infrared imaging instruments and become part of future space missions. Larger format FPAs (2k x 2k) will be realized as part of follow-up developments extending beyond Phase II. In Phase I, we will compute and optimize the electronic band structures, optical properties, Auger coefficients and ideal diffusion-limited dark currents of InAs/InAsSb T2SL absorber materials. The operating temperatures and overall thickness will be used as part of a trade-off study designed to achieve the quantum efficiency and dark current program goals. Shockley-Read-Hall minority carrier lifetimes of T2SLs are predicted to increase due to hydrogen-passivation, leading to larger signal-to-noise ratios for improved range of detection, enhanced discrimination capabilities, or operation at higher temperatures. Reducing the electrical activity of defects by passivating them with hydrogen is equivalent to lowering their density, and has proven successful in other semiconductor systems. The proposed hydrogenation technique makes use of the same dry-etch equipment employed during FPA manufacturing, making it easy to implement. In addition to the potential to remove the deleterious effects of bulk material defects, ICP hydrogenation also improves the detector's surface passivation quality. Smaller pixels, reduced integration times, and systems with larger fields-of-view will be realized, allowing the imaging of fast changing scenes over long ranges.","startYear":2016,"startMonth":6,"endYear":2016,"endMonth":12,"statusDescription":"Completed","principalInvestigators":[{"contactId":367820,"canUserEdit":false,"firstName":"Paul","lastName":"Boieriu","fullName":"Paul Boieriu","fullNameInverted":"Boieriu, Paul","primaryEmail":"Contracts@Sivananthanlabs.Us","publicEmail":true,"nacontact":false}],"programDirectors":[{"contactId":206378,"canUserEdit":false,"firstName":"Jason","lastName":"Kessler","fullName":"Jason L Kessler","fullNameInverted":"Kessler, Jason L","middleInitial":"L","primaryEmail":"jason.l.kessler@nasa.gov","publicEmail":true,"nacontact":false}],"programExecutives":[{"contactId":215154,"canUserEdit":false,"firstName":"Jennifer","lastName":"Gustetic","fullName":"Jennifer L Gustetic","fullNameInverted":"Gustetic, Jennifer L","middleInitial":"L","primaryEmail":"jennifer.l.gustetic@nasa.gov","publicEmail":true,"nacontact":false}],"programManagers":[{"contactId":62051,"canUserEdit":false,"firstName":"Carlos","lastName":"Torrez","fullName":"Carlos Torrez","fullNameInverted":"Torrez, Carlos","primaryEmail":"carlos.torrez@nasa.gov","publicEmail":true,"nacontact":false}],"projectManagers":[{"contactId":3163995,"canUserEdit":false,"firstName":"Robert","lastName":"Jones","fullName":"Robert Jones","fullNameInverted":"Jones, Robert","primaryEmail":"Robert.A.Jones@nasa.gov","publicEmail":true,"nacontact":false},{"contactId":461333,"canUserEdit":false,"firstName":"Theresa","lastName":"Stanley","fullName":"Theresa M Stanley","fullNameInverted":"Stanley, Theresa M","middleInitial":"M","primaryEmail":"theresa.m.stanley@nasa.gov","publicEmail":true,"nacontact":false}],"website":"","libraryItems":[{"file":{"fileExtension":"pdf","fileId":295630,"fileName":"SBIR_2016_1_BC_S1.03-7414","fileSize":49600,"objectId":292158,"objectType":{"lkuCodeId":889,"code":"LIBRARY_ITEMS","description":"Library Items","lkuCodeTypeId":182,"lkuCodeType":{"codeType":"OBJECT_TYPE","description":"Object Type"}},"objectTypeId":889,"fileSizeString":"48.4 KB"},"files":[{"fileExtension":"pdf","fileId":295630,"fileName":"SBIR_2016_1_BC_S1.03-7414","fileSize":49600,"objectId":292158,"objectType":{"lkuCodeId":889,"code":"LIBRARY_ITEMS","description":"Library Items","lkuCodeTypeId":182,"lkuCodeType":{"codeType":"OBJECT_TYPE","description":"Object Type"}},"objectTypeId":889,"fileSizeString":"48.4 KB"}],"id":292158,"title":"Briefing Chart","description":"Hydrogenation of Very Long Wavelength Infrared Focal Plane Arrays Based on Type II Superlattices, Phase I Briefing 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Directorate"},"program":{"acronym":"SBIR/STTR","active":true,"description":"
The NASA SBIR and STTR programs fund the research, development, and demonstration of innovative technologies that fulfill NASA needs as described in the annual Solicitations and have significant potential for successful commercialization. If you are a small business concern (SBC) with 500 or fewer employees or a non-profit RI such as a university or a research laboratory with ties to an SBC, then NASA encourages you to learn more about the SBIR and STTR programs as a potential source of seed funding for the development of your innovations.
The SBIR and STTR programs have 3 phases:
The SBIR and STTR Phase I contracts last for 6 months with a maximum funding of $125,000, and Phase II contracts last for 24 months with a maximum funding of $750,000 - $1.5 million.
Opportunity for Continued Technology Development Post-Phase II:
The NASA SBIR/STTR Program currently has in place two initiatives for supporting its small business partners past the basic Phase I and Phase II elements of the program that emphasize opportunities for commercialization. Specifically, the NASA SBIR/STTR Program has the Phase II Enhancement (Phase II-E) and Phase II eXpanded (Phase II-X) contract options.
Please review the links below to obtain more information on the SBIR/STTR programs.
Provides an overview of the SBIR and STTR programs as implemented by NASA
Provides access to the annual SBIR/STTR Solicitations containing detailed information on the program eligibility requirements, proposal instructions and research topics and subtopics
Schedule and links for the SBIR/STTR solicitations and selection announcements
Federal and non-Federal sources of assistance for small business
Search our complete archive of awarded project abstracts to learn about what NASA has funded
Still have questions? Visit the program FAQs
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