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Thin Film Blows Hot and Cold

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Hank Hogan

Some like it hot, some like it cold, but everybody likes it efficient. That's why a new thin-film thermoelectric material is attracting attention. It responds 23,000 times faster than the material in bulk and offers hundreds of times the cooling power density. The thin film is more than twice as effective at pumping heat as any known substance: A 1-cm2 device based on the material would offer 700 W of cooling at a temperature gradient of 58 °F. That could lead to thin-film thermoelectric devices with applications in photonics, communications and computing, including spot cooling or heating...Read full article

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    Published: February 2002
    CommunicationsConsumerResearch & TechnologyTech Pulse

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