Silicone-Resin Free Standing High-Temperature Films for Monolithically-Integrated CIGS Devices

Award Information
Agency:
Department of Defense
Branch:
Air Force
Amount:
$1,476,018.00
Award Year:
2003
Program:
SBIR
Phase:
Phase II
Contract:
F29601-03-C-0028
Agency Tracking Number:
021NM-1056
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
ITN ENERGY SYSTEMS, INC.
8130 Shaffer Pkwy, Littleton, CO, 80127
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
040245305
Principal Investigator
 Lawrence Woods
 Senior Scientist
 (303) 285-5135
 lwoods@itnes.com
Business Contact
 Janet Casteel
Title: Director, Business Relati
Phone: (303) 285-5111
Email: jcasteel@itnes.com
Research Institution
N/A
Abstract
ITN Energy Systems, Inc. is developing a space photovoltaic (PV) product based on our commercialization partner, Global Solar Energy, Inc.'s (GSE) flexible thin-film polycrystalline copper-indium-gallium-diselenide (CIGS) technology. These devices arebeing made as discrete cells on metallic foil substrates, as well as a monolithically integrated device on a polymeric substrate. While we have demonstrated a cell efficiency over 11% on a polyimide (PI) substrate, the record efficiency of 18.8% asmeasured at the National Renewable Energy Laboratory (NREL) was deposited on a rigid glass substrate, and approaching 18% on a flexible stainless steel foil substrate. The polyimide substrate has limited high temperature capability, and consequentlyrestricts CIGS PV material quality, while the stainless steel foils are a source of impurities, have rough surfaces, and do not enable space saving monolithic integration. ITN has teamed with Dow Chemical Corp. to develop insulating substrates based onSi-resin compounds. These substrates can achieve processing temperatures above 500¿C while providing an electrically insulated substrate to facilitate monolithic integration. ITN is developing two potential substrate schemes: Si-resin based insulators onmetal foil, and free-standing Si-resin based insulator films. The best performing substrates will be utilized in Phase 2 to demonstrate monolithically-integrated PV modules and scale-up.

* information listed above is at the time of submission.

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