Originally published January 25 2005
New solar cell spray is capable of harnessing the sun's energy, even in the dark
by Mike Adams, the Health Ranger, NaturalNews Editor
Now you don't have to be MacGyver to charge a battery using nothing but a t-shirt. Scientists have invented a way to harvest solar power through plastic cells capable of being sprayed onto objects or woven into clothing. The material can capture the sun's energy in the infrared spectrum, allowing it to work without light. Experts predict that with advances, the material could harness more than three times the amount of radiant energy than current solar cells.
Scientists have invented a plastic solar cell that can turn the sun's power into electrical energy, even on a cloudy day.
The plastic material uses nanotechnology and contains the first solar cells able to harness the sun's invisible, infrared rays.
The breakthrough has led theorists to predict that plastic solar cells could one day become five times more efficient than current solar cell technology.
Like paint, the composite can be sprayed onto other materials and used as portable electricity.
A sweater coated in the material could power a cell phone or other wireless devices.
A hydrogen-powered car painted with the film could potentially convert enough energy into electricity to continually recharge the car's battery.
The researchers envision that one day "solar farms" consisting of the plastic material could be rolled across deserts to generate enough clean energy to supply the entire planet's power needs.
"The sun that reaches the Earth's surface delivers 10,000 times more energy than we consume," said Ted Sargent, an electrical and computer engineering professor at the University of Toronto.
While half of the sun's power lies in the visible spectrum, the other half lies in the infrared spectrum.
Even people and animals give off heat," Sargent said.
He said the plastic coating could be woven into a shirt or sweater and used to charge an item like a cell phone.
In Japan, the world's largest solar-power market, the government expects that 50 percent of residential power supply will come from solar power by 2030, up from a fraction of a percent today.
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