%0 Journal Article
%T Ultrahigh-rectification near-field radiative thermal diode using infrared-transparent film backsided phase-transition metasurface
%+ Northeastern University [Boston]
%+ Laboratoire Charles Coulomb (L2C)
%+ Théorie du rayonnement matière et phénomènes quantiques
%A Liu, Yang
%A Tian, Yanpei
%A Chen, Fangqi
%A Andrew, Caratenuto
%A Xiaojie, Liu
%A Antezza, Mauro
%A Zheng, Yi
%< avec comité de lecture
%Z L2C:21-097
%@ 0003-6951
%J Applied Physics Letters
%I American Institute of Physics
%V 119
%N 12
%P 123101
%8 2021
%D 2021
%R 10.1063/5.0058779
%Z Physics [physics]/Quantum Physics [quant-ph]
%Z Physics [physics]/Condensed Matter [cond-mat]/Quantum Gases [cond-mat.quant-gas]
%Z Physics [physics]/Physics [physics]/Atomic and Molecular Clusters [physics.atm-clus]
%Z Physics [physics]/Physics [physics]/Atomic Physics [physics.atom-ph]
%Z Physics [physics]/Physics [physics]/Optics [physics.optics]Journal articles
%X We present a theoretical study of near-field radiative thermal rectification combining phase-transition and high-infrared-transmittance materials. The phase-transition material vanadium dioxide (VO2), with a metal–insulator transition near 341 K, is utilized under a reasonable temperature. Four types of high-infrared-transmittance materials, including potassium bromide, sodium chloride, polyethylene, andmagnesium fluoride, are introduced as thin film substrates under a VO2 grating on one side of the near-field rectifier. We explore the effects of various high-infrared-transmittance thin-film substrates and relevant geometric parameters on the thermal rectification of the device. The results show that thermal rectification can be greatly enhanced by using a one-dimensional VO2 grating backed with a high-infraredtransmittance thin-film substrate. With the introduction of a high-infrared-transmittance substrate, the rectification ratio is dramatically boosted due to the enhancement of the substrate transmittance. This work predicts a remarkable rectification ratio as high as 161—greater than the recently reported peak values for comparable near-field radiative thermal rectification. The results outlined herein will shed light on the rapidly expanding fields of nanoscale thermal harvesting, conversion, and management.
%G English
%2 https://hal.science/hal-03350625/document
%2 https://hal.science/hal-03350625/file/Liu2020.pdf
%L hal-03350625
%U https://hal.science/hal-03350625
%~ CNRS
%~ L2C
%~ MIPS
%~ UNIV-MONTPELLIER
%~ UM-2015-2021