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February 1st, 2005
Plastic chips tap IR, solar power
Development of a low-cost plastic infrared photovoltaic material by a group at the University of Toronto could herald a major step forward for solar power, its creators believe, by enabling solar-powered systems to also harvest infrared emissions.
The material embeds various-size nanoparticles-or quantum dots-in a polymer suspension. "We have designed a plastic device that is physically flexible-you could even paint it onto things by putting it in a solution," said Toronto EE professor Ted Sargent. "However you deposit it, after drying you have a nice, thin, smooth film that provides the basis for an electronic device."
University of Toronto
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