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-08-C-0057
Agency Tracking Number: 07SB2-0615
Amount: $99,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2007
Solicitation Year: 2007
Solicitation Topic Code: SB072-043
Solicitation Number: 2007.2
Small Business Information
2953 Bunker Hill Lane, Suite 400, Santa Clara, CA, 95054
DUNS: 125981485
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: Y
Principal Investigator
 Achyut Dutta
 Chief Technology Officer/ President
 (408) 282-3628
Business Contact
 Achyut Dutta
Title: President/ CTO
Phone: (408) 282-3501
Research Institution
For next decadal space appalications, space-borne systems require power system with long life capability and high reliability and offering significant mass and volume savings and significantly improved conversion efficiency compared to the state of art devices. Photovoltaic cell (a.k.a.“Solar Cell”) where light is converted into electric power, has been prevailing in a wide range of application fields such as consumer electronics, industrial electronics and space exploration. High-efficiency solar cell are required for various ground-based, air-borne, space-borne, and commercial systems, including remote sensing, surface topography, range detection, security, communication, and real-time monitoring of biological systems etc. The existing solar cells especially for space applications, are currently limited in efficiency by the complexity of adding more junctions to increase absorption of the solar spectrum. It is highly desirable to develop solar cell that has higher conversion efficiency (>40%) and cost-effective for numerous applications. The proposed project overcomes the limitations of achieving efficiency and can provides an affordable, power rich environment utilizing the conventional material and process technology. A goal of Phase I is to design and optimize solar cell structure for conversion efficiency of > 40%, utilizing the standard material such as CdS-CdTe for space application. Also, other goal is to fabricate the test structure to achieve conversion efficiency over 30% and comparing with the standard cell. The design, performance simulation, and also physical parameters optimization will also be carried out as a part of the Phase I activity.

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

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government