New Solar Converter Five Times More Efficient Than Traditional Means  

Posted by Big Gav

Researchers at the University of Toronot have developed a more efficient solar conversion technology. It utilises infra-red wavelengths as well as regular light, and the material can apparently be sprayed (or painted) on.

Sargent and other researchers combined specially-designed minute particles called quantum dots, three to four nanometres across, with a polymer to make a plastic that can detect energy in the infrared.

Infrared light is not visible to the naked eye but it is what most remote controls emit, in small amounts, to control devices such as TVs and DVD players.

It also contains a huge untapped resource -- despite the surge in popularity of solar cells in the 1990s, we still miss half of the sun's power, Sargent said.

"In fact, there's enough power from the sun hitting the Earth every day to supply all the world's needs for energy 10,000 times over,'' Sargent said in a phone interview Sunday from Boston. He is currently a visiting professor of nanotechnology at the Massachusetts Institute of Technology.

Sargent said the new plastic composite is, in layman's terms, a layer of film that "catches'' solar energy. He said the film can be applied to any device, much like paint is coated on a wall.

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