LIGHTWEIGHT, LIGHT-TRAPPED, THIN GAAS SOLAR CELL FOR SPACECRAFT APPLICATIONS

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$582,073.00
Award Year:
1993
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
17966
Agency Tracking Number:
17966
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Solar Park, Newark, DE, 19716
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Margaret H. Hannon
(302) 366-0400
Business Contact:
() -
Research Institute:
n/a
Abstract
ASTROPOWER IS PROPOSING THE DEVELOPMENT OF AN ULTRA-LIGHTWEIGHT, HIGH PERFORMANCE, THIN LIGHT TRAPPING GAAS SOLAR CELL FOR ADVANCED SPACE POWER SYSTEMS. A THIN DEVICE LEADS TO HIGHER PERFORMANCE IN TERMS OF OPEN CIRCUIT VOLTAGE, RADIATION RESISTANCE, AND SPECIFIC POWER. IN A THIN DEVICE, THE INCORPORATION OF LIGHT TRAPPING TO EXTEND THE OPTICAL PATH LENGTH PERMITS GREATER CURRENT GENERATIC THAN CAN BE EXPEDITED FROM A CONVENTIONAL, THICK GAAS SOLAR CELL. THE USE OF AN OPTICAL REFLECTOR INCREASES THE SHORT CIRCUIT CURRENT AND REDUCES THE BULK RECOMBINATION. THE INNOVATIVE DESIGN PROPOSED FOR HIS PHASE I PROGRAM COMBINES A ULTRA-THIN GAAS SOLAR CELL WITH THE OPTIMUM LIGHT TRAPPING TECHNOLOGY, WHILE OFFERING THE ADDED BENEFITS OF DURABILITY AND LOW COST UTILIZING ASTROPOERS'S LIQUID PHASE EPITAXY TECHNOLOGIES. THE GOAL IS A 1.64 MICRON THICK SPACE SURVIVABLE GAAS SOLAR CELL OFFERING 24.5% EFFICIENCY (AMO, 1X), CORRESPONDING TO 2906 W/KG. THE DEVLOPMENT OF THIS THECNOLOGY CAN RESULT IN A REVOLUTIONARY IMPROVEMENT IN HIGH SURVIVABILITY LIGHTWEIGHT GAAS SOLAR CELL PRODUCTS FOR SPACE.

* information listed above is at the time of submission.

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