Solar PV Foil Targets Air, Space Applications

[RenewableEnergyAccess.com] – Product News – New York-based DayStar Technologies unveiled a new solar product specifically targeting military and homeland security applications such as high altitude airships, winged unmanned aerial vehicles and orbital applications for next generation satellite craft. DayStar believes their product meets the low weight, high power, and form flexibility metrics required by onboard power generation systems for these weight sensitive applications. Called “LightFoil,” the companies product consists of high efficiency CIGS (copper-indium-gallium-diselenide) solar cells deposited on thin titanium foil. Less than the thickness of common household aluminum foil, LightFoil’s design allows for high power production from sunlight without excessive weight, according to the company. DayStar’s product has achieved a specific power level of 1440 W/kg (15.2 percent AM0 efficiency) in the laboratory setting, which is approximately 50 percent more energy dense and 60 percent lighter than all known thin film alternatives, according to the company. LightFoil is also flexible both physically and in form factors. The product molds to curved surfaces and can be cut to shape to conform to complex geometric requirements. Engineering samples should be available in 2Q 2005.
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