Controllable thermal radiation from twisted bilayer graphen
arXiv:2201.09504 · doi:10.1016/j.ijheatmasstransfer.2022.123076
Abstract
The presence of interlayer interactions in twisted bilayer graphene (TBG) enhances several characteristics, including the optical and electrical properties. We theoretically investigate the magic angle of TBG according to the vanishing of Fermi velocity and find double magic angles in a series. The thermal radiation from TBG can be tuned to the far infrared range by changing twist angles. The peculiar radiation spectrum is out of atmospheric window, which can be of great use in invisibility and keeping warm. The total radiation of TBG is slightly more than twice of a single layer graphene.
13 pages, 9 figures
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- Near-field radiative heat transfer between shifted graphene gratings
- Effect of graphene grating coating on near-field radiative heat transfer
- Non-equilibrium Green's function formalism for radiative heat transfer