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Heat transfer in extreme near-field regime – NEARHEAT

Submission summary

Radiative heat transfer in the near field (micron and sub-micron distances) can dramatically overcome the far-field blackbody limit, by means of photon tunneling. Even though in the extreme near field (sub-nanometric distances) electrons and phonons represent two important channels contributing to heat exchange, no complete theoretical framework has been proposed to tackle this multi-channel energy transfer so far. In this project we aim to develop such a general theory to describe the three contributions (photonic, electronic and phononic) to heat transfer by exploiting fluctuational electrodynamics for photons, and at the same time mesoscopic and ab-initio atomistic approaches for electrons and phonons. This will allow to improve significantly the efficiency of several energy-conversion techniques, such as thermoelectricity and near-field thermophotovoltaics, as well as of methods of contact-less cooling.

Project coordination

Riccardo Messina (Laboratoire Charles Fabry)

The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.


LCF Laboratoire Charles Fabry

Help of the ANR 297,000 euros
Beginning and duration of the scientific project: February 2021 - 36 Months

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