High Efficiency Solar Cell on Low Cost Metal Foil Substrate

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$70,000.00
Award Year:
2004
Program:
SBIR
Phase:
Phase I
Contract:
NNC04CA60C
Agency Tracking Number:
034337
Solicitation Year:
2003
Solicitation Topic Code:
E2.07
Solicitation Number:
n/a
Small Business Information
Brimrose Corporation of America
5024 Campbell Blvd., Suite E, Baltimore, MD, 21236-4968
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
06489
Principal Investigator:
Gomath Jagannathan
Principal Investigator
(410) 668-5800
gnathan@brimrose.com
Business Contact:
Diane Murray
Business Official
(410) 931-7200
dibrim@aol.com
Research Institution:
n/a
Abstract
Future space missions will require Solar cell arrays having specific power ratings in excess of 1000 W/kg. Conventional crystalline photovoltaic technology comprised of epitaxial photovoltaic semiconductor materials grown on single crystal semiconductor substrates, cannot provide these specific ratings. We propose to synthesize nano-precursors of solar cell materials of uniform size by Solvo-thermal process. These nano-precursors will be deposited as nano-thin film on low cot and flexible metal foil substrate by Electrophoretic technique. Through subsequent , insitu annealing, thin films with grain size >50 microns will be produced. GaAs, Ge and InP will be investigated to determine which material can be deposited as high quality large grain thin film without contamination. The synthesized nano-precursors, electrphoretically deposited nano-thin film and large grain thin film produced after annealing will be fully characterized. A combination of crystalline thin film photovoltaic layers having an efficiency of just 25% fabricated on low cost, light weight flexible substrate such as a metal foil, would yield a specific power rating of >1200 W/kg. During Phase II multi-junction solar cell will be grown on the large grain thin film produced during Phase I on flexible/low cost metal foil substrate.

* information listed above is at the time of submission.

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