Thermoelectric materials can directly convert heat into electricity as well as electricity into heat. Here is an interesting article review that briefly explains how researchers at RPI developed an easy and inexpensive process to make these materials using clever chemistry and nanostructured components. The full explanation of this work was published in a paper in Nature Materials. In addition to being easier and more cost effective, the new process can also result in higher energy conversion efficiencies. Thermoelectric materials can for example be used to recuperate energy lost in the form of heat (car exhaust for instance) back into useful electrical energy.
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