HIGH TEMPERATURE THERMALLY STABLE MULTI-LAYER QUANTUM WELL FILMS

Award Information
Agency: Department of Energy
Branch: N/A
Contract: N/A
Agency Tracking Number: 27208
Amount: $725,417.00
Phase: Phase II
Program: SBIR
Awards Year: 1995
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
6373 Nancy Ridge Dr, San Diego, CA, 92121
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Mr Norbert B Elsner
 (619) 535-9343
Business Contact
Phone: () -
Research Institution
N/A
Abstract
AN ATTEMPT WILL BE MADE TO FABRICATE MULTI-LAYER QUANTUM WELL FILMS (ML-QWFS) THAT SHOULD HAVE AN EXCEPTIONALLY HIGH FIGURE OF MERIT (Z) FROM MATERIALS THAT EXHIBIT VERY LOW DIFFUSION RATES. SUCH MATERIALS PREVENT THE QUANTUM WELL AND BARRIER MATERIALS FROM INTERDIFFUSING, THEREBY DEGRADING THE MULTILAYER NANOSTRUCTURE RESPONSIBLE FOR THE IMPROVED PERFORMANCE. THE IMPROVED PERFORMANCE BELIEVED TO BE POSSIBLE WITH SUCH MATERIALS IS DUE TO THE CONFINED MOTION OF THE CHARGE CARRIERS AND THE TWO DIMENSIONAL QUANTUM WELL WHICH IS IN CONTRAST TO THEIR THREE DIMENSIONAL MOTION IN COMPARABLE BULK MATERIALS. THE LAYERING MAY ALSO DECREASE THE THERMAL CONDUCTIVITY. THE GOAL OF THIS EFFORT IS TO DEVELOP ML-QWFS THAT CAN OPERATE UP TO 1100 DEGREES CENTIGRADE FOR >10 YEARS. PARAMETERS SUCH AS LAYER THICKNESS, RESIDUAL STRAIN IN THE LAYERS, AND TYPE OF CRYSTAL STRUCTURE WILL ALL BE CONSIDERED IN THE SELECTION OF THE QUANTUM WELL AND BARRIER MATERIALS. DURING PHASE I VARIOUS BORIDE ALLOYS WILL BE ALTERNATELY DEPOSITED INTO QUANTUM LAYERS AND THEIR THERMOELECTRIC PROPERTIES CHARACTERIZED.

* Information listed above is at the time of submission. *

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