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Title: Near-field radiative thermal transfer between a nanostructured periodic material and a planar substrate

Abstract

This paper provides a method based on rigorous coupled wave analysis for the calculation of the radiative thermal conductance between a layer that is patterned with arbitrary, periodically repeating features and a planar substrate. This method is applied to study the transfer from an array of beams with a rectangular cross section. Herein the impact of the structure size and spacing on the thermal conductance are investigated. These calculations are compared to an effective medium theory, which becomes increasingly accurate as the structure sizes fall well below the relevant resonance wavelengths of materials and structures. Moreover, comparisons are made with a modified proximity approximation and the far-field approximation, which become valid for small and large spacings, respectively. Results show that new levels of control over the magnitude and spectral contributions to thermal conductance can be achieved with corrugated structures relative to planar ones. Specifically, we show for SiC arrays with rectangular cross sections and with the same filling fraction, that the use of a smaller periodicity leads to a lowered far-field thermal transfer and an increased near-field thermal transfer.

Authors:
 [1];  [2];  [1]
  1. Stanford Univ., CA (United States). Geballe Lab. for Advanced Materials
  2. Technion-Israel Inst. of Technology, Haifa (Israel)
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Light-Material Interactions in Energy Conversion (LMI)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1387273
Alternate Identifier(s):
OSTI ID: 1180291
Grant/Contract Number:  
SC0001293
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 91; Journal Issue: 1; Related Information: LMI partners with California Institute of Technology (lead); Harvard University; University of Illinois, Urbana-Champaign; Lawrence Berkeley National Laboratory; Journal ID: ISSN 1098-0121
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; solar (photovoltaic); solid state lighting; phonons; thermal conductivity; electrodes - solar; materials and chemistry by design; optics; synthesis (novel materials); synthesis (self-assembly)

Citation Formats

Chalabi, Hamidreza, Hasman, Erez, and Brongersma, Mark L. Near-field radiative thermal transfer between a nanostructured periodic material and a planar substrate. United States: N. p., 2015. Web. doi:10.1103/PhysRevB.91.014302.
Chalabi, Hamidreza, Hasman, Erez, & Brongersma, Mark L. Near-field radiative thermal transfer between a nanostructured periodic material and a planar substrate. United States. https://doi.org/10.1103/PhysRevB.91.014302
Chalabi, Hamidreza, Hasman, Erez, and Brongersma, Mark L. 2015. "Near-field radiative thermal transfer between a nanostructured periodic material and a planar substrate". United States. https://doi.org/10.1103/PhysRevB.91.014302. https://www.osti.gov/servlets/purl/1387273.
@article{osti_1387273,
title = {Near-field radiative thermal transfer between a nanostructured periodic material and a planar substrate},
author = {Chalabi, Hamidreza and Hasman, Erez and Brongersma, Mark L.},
abstractNote = {This paper provides a method based on rigorous coupled wave analysis for the calculation of the radiative thermal conductance between a layer that is patterned with arbitrary, periodically repeating features and a planar substrate. This method is applied to study the transfer from an array of beams with a rectangular cross section. Herein the impact of the structure size and spacing on the thermal conductance are investigated. These calculations are compared to an effective medium theory, which becomes increasingly accurate as the structure sizes fall well below the relevant resonance wavelengths of materials and structures. Moreover, comparisons are made with a modified proximity approximation and the far-field approximation, which become valid for small and large spacings, respectively. Results show that new levels of control over the magnitude and spectral contributions to thermal conductance can be achieved with corrugated structures relative to planar ones. Specifically, we show for SiC arrays with rectangular cross sections and with the same filling fraction, that the use of a smaller periodicity leads to a lowered far-field thermal transfer and an increased near-field thermal transfer.},
doi = {10.1103/PhysRevB.91.014302},
url = {https://www.osti.gov/biblio/1387273}, journal = {Physical Review. B, Condensed Matter and Materials Physics},
issn = {1098-0121},
number = 1,
volume = 91,
place = {United States},
year = {Tue Jan 06 00:00:00 EST 2015},
month = {Tue Jan 06 00:00:00 EST 2015}
}

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Cited by: 29 works
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Works referencing / citing this record: