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Quantum Nanocrystal Sensor

Award Information

Agency:
Department of Defense
Branch:
Missile Defense Agency
Award ID:
26224
Program Year/Program:
1994 / SBIR
Agency Tracking Number:
26224
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Structured Materials Industries
201 Circle Drive North Unit # 102 Piscataway, NJ 08854-3723
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1994
Title: Quantum Nanocrystal Sensor
Agency / Branch: DOD / MDA
Contract: N/A
Award Amount: $49,997.00
 

Abstract:

RECENT OBSERVATION OF LIGHT EMISSION FROM MATERIALS CONTAINING SILICON NANOPARTICLES (INCLUDING POROUS SILICON) HAS DEMONSTRATED THAT THE OPTICAL PROPERTIES OF SILICON CAN BE DRASTICALLY ALTERED BY QUANTUM SIZE EFFECTS. IN RECENT WORK AIMED AT THE DEVELOPMENT OF LIGHT EMITTING DEVICES IN SUCH MATERIAL SYSTEMS, WE HAVE DEMONSTRATED PHOTOLUMINESCENCE RANGING FROM IR, THROUGH THE VISIBLE, TO UV, AS WELL AS THE NARROWEST PL EMISSION THAT HAS SO FAR BENN OBSERVED IN ANY Si BASED MATERIAL, INCLUDING POROUS SILICON. OUR MATERIAL CONSISTS OF Si AND Ge QUANTUM NANOCRYSTALS (QNCs) EMBEDDED IN A SILICON DIOXIDE (SiO2) MATRIX AND IS MUCH MORE RUGGED, CHEMICALLY INERT AND COMPATIBLE WITH IC PROCESSING THAN POROUS SILICON. THE Si/Ge QNC FILMS WERE FORMED BY ANNEALING SILICON DIOXIDE CONTAINING EXCESS Si OR Ge AND TEM AND RAMAN SPECTROSCOPY REVEALED THE PRESENCE OF CRYSTALLITES IN THE QUANTUM SIZE RANGE. WE NOW PROPOSE TO DEVELOP DETECTORS BASED ON THESE FILMS AS WELL AS RADIATION ABSORPTION LAYERS FOR STEALTH AND SHIELDING APPLICATIONS. SINCE THE BANDGAP OF THE SILICON NANOPARTICLES, AND THEREFORE THEIR ABSORPTION PROPERTIES CAN BE ADJUSTED BY CHANGING THE PARTICLE SIZE, THESE FILMS ARE IDEALLY SUITED FOR SOLAR CELLS, RADIATION DETECTION OR "STEALTH" TYPE APPLICATIONS. IN PHASE I, WE WILL FABRICATE MIS PHOTODETECTORS AND DETERMINE THE RELATIONSHIP BETWEEN THE QNC SIZE AND ABSORPTION COEFFICIENT.

Principal Investigator:

Gang Sun
2014713589

Business Contact:

Small Business Information at Submission:

Structured Materials
240 Martin Luther King Blvd. Newark, NJ 07102

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No