NASA SBIR 2010 Solicitation


PROPOSAL NUMBER: 10-1 X8.04-9077
SUBTOPIC TITLE: Advanced Photovoltaic Systems
PROPOSAL TITLE: Dry Epitaxial Lift-Off for High Efficiency Solar Cells

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
OptiCOMP Networks
60 Phillips St. 3-2
Attleboro, MA 02703 - 6129
(401) 616-4176

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
John Farah
60 Phillips St. 3-2
Attleboro, MA 02703 - 6129
(401) 616-4176

Estimated Technology Readiness Level (TRL) at beginning and end of contract:
Begin: 2
End: 3

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
A new method of transferring epitaxially grown active films onto an inexpensive polymeric flexible carrier. Specifically, for making thin lightweight high efficiency (> 30%) IMM3J solar cells while reusing the GaAs or Ge base wafer. This will reduce the costs of fabricating high efficiency PV cells by 30% and will raise specific power to > 200W/kg. The method uses a thin strained layer under the epitaxially grown active layers without ion implantation or wet etching. A crack propagates in the strained layer splitting the epi-layers from the base wafer after bonding to polyimide wafer, hence dry epitaxial lift-off (DELO), due to the difference in thermal expansion coefficients between the semiconductor and flexible substrate without applying mechanical pressure. The base wafer is re-used to grow new epi-layers.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
Lighter, more flexible and more cost effective high efficiency PV cells for space applications (satellites, space stations, planetary missions, etc.)

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
Lighter, flexible, cost effective PV cells for powering mobile devices and for recharging batteries in combat/defense applications. Cheaper, more mobile PV systems for remote mobile use (with or w/o concentrators).

TECHNOLOGY TAXONOMY MAPPING (NASA's technology taxonomy has been developed by the SBIR-STTR program to disseminate awareness of proposed and awarded R/R&D in the agency. It is a listing of over 100 technologies, sorted into broad categories, of interest to NASA.)
Sources (Renewable, Nonrenewable)

Form Generated on 09-03-10 12:12