We propose a thermal management technique using metamaterials, which enables the gathering and release of thermal energy from the surrounding environment. A metamaterial is an artificial material that works as an antenna that absorbs thermal radiation emitted from the surrounding medium and a transducer that converts the absorbed energy into local heating. Thanks to its high absorption coefficient, metamaterials can efficiently gather electromagnetic waves. By utilizing this technology, we have demonstrated metamaterial thermoelectric conversion, which can generate electricity even in an environment with a uniform temperature distribution. Additionally, we propose a non-radiative cooling technique, which operates as the reverse process of metamaterial thermoelectric conversion.
|