Professor Kazuhiko Hirakawa and his colleagues at the Institute of Industrial Science (IIS) have succeeded in developing a highly efficient device cooling element based on a new principle using semiconductor heterostructures. The device is based on the control of thermionic emission and resonant tunneling effects, and is expected to have a cooling capacity 10 times higher than that of conventional Peltier devices. The paper was published in Nature Communications on 3 October.
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