DOME FRESNEL LENS/GALLIUM ARSENIDE PHOTOVOLTAIC CONCENTRATOR ARRAY WITH AN AMO OPERATIONAL ARRAY EFFICIENCY GREATER THAN 20%

Award Information
Agency:
Department of Defense
Amount:
$482,000.00
Program:
SBIR
Contract:
N/A
Solitcitation Year:
N/A
Solicitation Number:
N/A
Branch:
Missile Defense Agency
Award Year:
1988
Phase:
Phase II
Agency Tracking Number:
3889
Solicitation Topic Code:
N/A
Small Business Information
Entech Inc.
P.o. Box 612246, Dal-ft. Wor. Arpt, TX, 75261
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
N/A
Principal Investigator
 Mark J. O'neill
 (214) 456-0900
Business Contact
Phone: () -
Research Institution
N/A
Abstract
ENTECH IS PLEASED TO PROPOSE TO THE STRATEGIC DEFENSE INITIATIVE ORGANIZATION THE DESIGN DEVELOPMENT OF AN INNOVATIVE DOME FRESNEL LENS/GALLIUM ARSENIDE PHOTOVOLTAIC CONCENTRATOR ARRAY, CAPABLE OF ACHIEVING AN AMO OPERATIONAL ARRAY EFFICIENCY OF 20.4% IN THE SPACE ENVIRONMENT. THE PROPOSED SYSTEM WILL UTILIZE THREE HIGHLY INNOVATIVE FEATURES: (I) A DOME FRESNEL LENS CONCENTRATOR WHICH WILL PROVIDE 95% OPTICAL EFFICIENCY AT 100X CONCENTRATION; (II) A PRISMATIC CELL COVER WHICH WILL MINIMIZE CELL FRONT SURFACE REFLECTION LOSSES AND ELIMINATE GRIDLINE OBSCURATION LOSSES; AND (III) STATE-OFTHE-ART GALLIUM ARSENIDE CONCENTRATOR CELLS WHICH WILL PROVIDE 23.3% OPERATIONAL CELL EFFICIENCY. THESE THREE INNOVATIVE FEATURES WILL BE INTEGRATED INTO AN ARRAY CONFIGURATION WHICH WILL PROVIDE AN AMO OPERATIONAL POWER OUTPUT OF 275 WATTS PER SQUARE METER OF ARRAY AREA, ABOUT TWICE AS HIGH AS FOR CURRENT PLANAR SILICON PHOTOVOLTAIC ARRAYS AND ABOUT ONE AND ONE-HALF TIMES HIGHER THAN THE MOST PROMISING REFLECTIVE CONCENTRATOR ARRAY. THE INCREASED PERFORMANCE LEVEL WILL DRAMATICALLY REDUCE ARRAY AREA, ARRAY MASS, AND ARRAY COST FOR FUTURE SPACE POWER SYSTEMS. BASED ON OUR PAST NINE YEARS OF SUCCESSFULLY DEVELOPIG THE NEW ARRAY DESIGN.

* information listed above is at the time of submission.

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