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Photonic Band Gap Structures for Solar Energy Generation

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: W31P4Q-11-C-0238
Agency Tracking Number: 09SB2-0045
Amount: $747,106.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: SB092-002
Solicitation Number: 2009.2
Solicitation Year: 2009
Award Year: 2011
Award Start Date (Proposal Award Date): 2011-06-10
Award End Date (Contract End Date): N/A
Small Business Information
12 Desbrosses Street
New York, NY -
United States
DUNS: 145785528
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Michael Crouse
 (845) 519-7463
Business Contact
 Thomas James
Title: CEO
Phone: (703) 795-7218
Research Institution

The objective of proposed Phase II project is to develop multi-junction Graetzel cells using a cost effective, single layer metamaterial light harvesting template into which, up to four different sets of wavelength-selective ruthenium dye complexes are deposited. The light harvesting template performs three roles: (1) spectral band splitting of the incident solar spectrum into different cavities into which different wavelength specific ruthenium compounds have been electrodeposited, (2) light concentration, and (3) serves as a heat sink to avoid the harmful effects of high temperatures. These three improvements to the traditional Graetzel cell are expected to increase the efficiency to 42% compared to ~11% for traditional Graetzel cells, resulting in a predicted module cost of 95/Watt. Certain untested aspects of our device may increase the efficiency to as high as 60%, resulting in a cost reduction to 66/Watt.

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

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