Photonic Band Gap Structures for Solar Energy Generation

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: W31P4Q-11-C-0237
Agency Tracking Number: 09SB2-0024
Amount: $736,316.00
Phase: Phase II
Program: SBIR
Awards Year: 2011
Solicitation Year: 2011
Solicitation Topic Code: SB092-002
Solicitation Number: 2011.2
Small Business Information
410 Jan Davis Drive, Huntsville, AL, -
DUNS: 625694500
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Milan Buncick
 Chief Scientist
 (256) 922-0802
Business Contact
 Georgina Chapman
Title: Business Development Anal
Phone: (256) 922-0802
Research Institution
The demand for renewable energy is motivating R & D efforts toward the development of novel photovoltaic (PV) technology. Efficient and low cost solar cells will have an important role in defense applications particularly powering portable electronic de-vices. Current solar cells based on single crystal silicon are still not at a level to be cost effective when compared to other forms of electrical generation. The path forward is the development of new concepts in both materials and design that enables the fabri-cation of high-efficiency, cost-effective solar cells. A new approach to improving PV efficiency is to concentrate the light in such a way that the density of photons hitting the cell is substantially increased. This can be achieved by fabricating a plasmonic resonance cavity as part of each cell. The plasmonic structures make use of local field enhancement to concentrate photons at the PV junction. These junctions can then be stacked, as has been demonstrated previously, to convert photons over the full solar spectrum. The wideband PV devices with plasmonic concentrators can be built using thin-film technology, which will provide a low-cost and highly efficient solar energy source. AEgis will model, design, fabricate and test wideband PV devices with plas-monic resonance cavities.

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

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