Saturday, September 20, 2008

Thallium-doped lead telluride can turn waste heat into electricity

... twice as efficient as the second most efficient material used in thermoelectric power. The lead telluride creates electric power like a conventional heat engine coupled to an electric generator, but uses electrons as the working fluid instead of water or gas. Additionally, it creates electricity directly. Most importantly, the material is most effective between 450 and 950° Fahrenheit. This is a typical temperature range for many power systems, including car engines.

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