Photovoltaic Cells for Very High Altitude Very Long Endurance Solar Aircraft

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: W31P4Q-09-C-0079
Agency Tracking Number: 07SB2-0623
Amount: $749,936.00
Phase: Phase II
Program: SBIR
Awards Year: 2009
Solicitation Year: 2007
Solicitation Topic Code: SB072-043
Solicitation Number: 2007.2
Small Business Information
6457 Howard Street, Niles, IL, 60714
DUNS: 135553472
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Noren Pan
 (847) 588-3001
Business Contact
 Noren Pan
Title: President
Phone: (847) 588-3001
Research Institution
The significance of the innovation in this Phase II SBIR is the development of a low cost, lightweight epitaxial lift-off (ELO) process for large improvements in the power/weight ratio in solar cell devices. This effort will advance solar cell development by decreasing the weight while maintaining the efficiency performance of the solar cell. The innovation of this work is based upon the complete removal of the GaAs substrate from the epitaxial layers while maintaining the performance of the solar cell device and the re-usage of the GaAs substrate. Development efforts will focus on the manufacturability of the ELO process towards increasing the throughput and device yield. This effort will concentrate on the development of large scale plating which plays a critical role in the ELO process. Initial work will be on 4-inch GaAs substrates and will be subsequently transferred to 6-inch GaAs substrates since this provides a significant increase in throughput for material growth and device processing. The goal is to achieve an overall solar cell device yield of at least 85%.

* Information listed above is at the time of submission. *

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