Importance

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Abstract

Thermoelectric devices comprising at least a first conductive material, a first semiconductive material, a second conductive material, and a third conductive material. The second conductive material may be contacting, disposed within, or operably connected to the first semiconductive material. Semiconductive materials may be depleted, undoped, p-doped, or n-doped, nanotubes, nanowires, and others. Conductive materials may be metals, alloys, conductive materials, nanotubes, nanowires, and others. The effective electrical resistance between the first conductive material and the third conductive materials is reduced below the series electrical resistance of the first semiconductive material by design, reducing the associated Joule heating. Peltier cooling and Peltier heating counteract each other within the second conductive material as electrical current flows. Heat exchanged between the first conductive material and the third conductive material creates a temperature differential therebetween. Thermoelectric devices can reversibly heat or cool, and use the Seebeck effect to generate electrical power from thermal energy.

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First Claim