Hyperbolic phonon polariton emission from graphene on hBN, especially in the Zener tunneling regime, can cool graphene electronics far more efficiently than blackbody radiation.
hot" electrons (dotted black line) in the former, dropping toward a linear dependence characteristic of
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Hyperbolic Phonon Polariton Electroluminescence as an Electronic Cooling Pathway
Hyperbolic phonon polariton emission from graphene on hBN, especially in the Zener tunneling regime, can cool graphene electronics far more efficiently than blackbody radiation.