Uncooled Radiation Hard SiC Schottky VUV Detectors Capable of Single Photon Sensing

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNG04CA74C
Agency Tracking Number: 033612
Amount: $70,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2004
Solicitation Year: 2003
Solicitation Topic Code: S2.06
Solicitation Number: N/A
Small Business Information
UNITED SILICON CARBIDE, INC.
100 Jersey Ave., Building A, New Brunswick, NJ, 08901-3200
DUNS: 042068101
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 George Lin
 Principal Investigator
 (732) 565-9500
 uscglin@unitedsic.com
Business Contact
 George Lin
Title: Business Official
Phone: (732) 565-9500
Email: uscglin@unitedsic.com
Research Institution
N/A
Abstract
This project seeks to design, fabricate, characterize and commercialize very large area, uncooled and radiative hard 4H-SiC VUV detectors capable of near single photon sensing. The detector design and advanced processing technologies combined with the unique material property of 4H-SiC are expected to lead to significant improvements to the performance of large area solid state detectors including much lower noise due to the wide bandgap and substantially improved lifetime due to the greatly increased radiation tolerance in comparison to state-of-the-art based on Si UV technologies. In Phase I, detectors with optical window up to 1cmx1cm will be designed and fabricated. Two batches will be fabricated with different semitransparent metal thicknesses. Concentration will be focused on achieving very low dark current and high quantum efficiency. The fabricated detectors with different optical window sizes will be characterized, including dark current, forward current ideality factor, quantum efficiency. The dominant source and mechanism of the dark current will be investigated to help identify approaches to further reduce the dark current in Phase II which will be concentrating on pushing up the quantum efficiency over a wider spectrum range, further reducing the dark currents, and characterizing reliability and lifetime.

* information listed above is at the time of submission.

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