Open AccessNear-field radiative heat transfer in multilayered graphene system considering equilibrium temperature distribution
Author(s) -
Ming-Jian He,
Hong Qi,
Yifei Wang,
Ya-Tao Ren,
Weihua Cai,
Liming Ruan
Publication year - 2019
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.00a953
Subject(s) - materials science , heat transfer , heat flux , heat transfer coefficient , radiative transfer , graphene , thermal radiation , thermal conductivity , film temperature , thermodynamics , mechanics , condensed matter physics , physics , optics , nusselt number , nanotechnology , turbulence , reynolds number , composite material
In the present work, the near-field radiative heat transfer of a multilayered graphene system is investigated within the framework of the many-body theory. For the first time, the temperature distribution corresponding to the steady state of the system is investigated. Unique temperature steps are observed near both boundaries of the system, especially in the strong near-field regime. By utilizing the effective radiative thermal conductance, the thermal freedom of heat flux in different regions of the system is analyzed quantitatively, and the cause of various temperature distributions is explained accordingly. To characterize the heat transfer ability of the whole system, we evaluate the system with two heat transfer coefficients (HTC), transient heat transfer coefficient (THTC), and steady heat transfer coefficient (SHTC). A unique many-body enhancement is observed, which causes a red-shift of resonance peak corresponding to graphene surface plasmon polaritons. Furthermore, a three-body enhancement of SHTC emerges thanks to the relay effect and the complexity of the system. The regime of heat transport can be tuned by changing the chemical potentials of graphene and undergoes a transition from diffusive to quasi-ballistic transport in the strong near-field regime.