High Efficiency Solar Cell on Low Cost Metal Foil Substrate

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNC04CA60C
Agency Tracking Number: 034337
Amount: $70,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2004
Solicitation Year: 2003
Solicitation Topic Code: E2.07
Solicitation Number: N/A
Small Business Information
5024 Campbell Blvd., Suite E, Baltimore, MD, 21236-4968
DUNS: 06489
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Gomath Jagannathan
 Principal Investigator
 (410) 668-5800
Business Contact
 Diane Murray
Title: Business Official
Phone: (410) 931-7200
Email: dibrim@aol.com
Research Institution
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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