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Most generally a class of materials that are neither insulators or conductors in their natural state, but which can be manipulated via doping or electric fields to change their conduction state. Silicon, Germanium, and GaAs are some usual materials. The term is also used to speak about devices that are made from such materials, for example, a processor from Intel can be called a semiconductor.

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Fixing hot plate and the heat sink, which thermoelectric module would produce more power?

Thermoelectric coolers (TECs) are typically used to generate temperature difference. Thermoelectric generators (TEGs), however, are used for power generation. While TECs are much cheaper than TEGs, th …
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