In Italy the first superconducting circuit be able to generate electricity from heat. For the first time, this technology, which is being considered theoretically, has been experimentally demonstrated, paving the way for new applications in the field of superconducting quantum technologies and the search for new materials toenergy efficiency.
The phenomenon demonstrated is called bipolar thermoelectricity, or the ability of materials to convert a temperature difference into electrical energy in the form of current or voltage. The result is due toInstitute of Nanosciences from the National Research Council (Cnr-Nano) and was published in the journal Nature Nanotechnology.
In superconducting metals, thermoelectricity has until now been considered negligible and only recently it has become possible to generate thermoelectric phenomena by coupling superconductors to other materials.
The device we have created is capable of spontaneously generating a voltage or an electric current, once two superconductors are coupled to a simple junction exposed to a strong temperature difference.
It is now possible to design a generation of innovative thermoelectric devices for quantum technologies, quantum computation and in the field of radiation sensors; last but not least, it opens up the search for new materials that can produce electrical energy from dissipated heat.
Francesco Giazotto, from the CNR-Nano, responsible for the experiment
Source: Lega Nerd
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