Cited by 576Thermal properties of materialsThermal Radiation and Cooling TechnologiesThermography and Photoacoustic Techniques

Thermal conductance of interfaces between highly dissimilar materials

Lyeo, Ho-Ki, Cahill, David G.·2006·Physical Review B

Abstract

The thermal conductance of interfaces between materials with low Debye temperatures (Pb or Bi) and dielectrics or semiconductors with high Debye temperatures (hydrogen-terminated Si, $\mathrm{Si}{\mathrm{O}}_{2}$, the native oxide of Be, sapphire, or hydrogen-terminated diamond) is measured using time-domain thermoreflectance. The interface thermal conductance $G$ for these combinations of materials falls within a relatively narrow range, $8<G<30\phantom{\rule{0.3em}{0ex}}\mathrm{MW}\phantom{\rule{0.2em}{0ex}}{\mathrm{m}}^{\ensuremath{-}2}\phantom{\rule{0.2em}{0ex}}{\mathrm{K}}^{\ensuremath{-}1}$, at room temperature. Because the thermal conductance of interfaces with Bi, a semimetal, and interfaces with Pb, a metal, are similar, we conclude that the coupling of electrons in a metal to phonons in a dielectric substrate does not contribute significantly to the thermal transport at interfaces. For Pb or Bi on hydrogen-terminated diamond, the measured conductance greatly exceeds the radiation limit and decreases approximately linearly with decreasing temperature, suggesting that anharmonic processes dominate the transfer of thermal energy across interfaces between materials with highly dissimilar spectra of lattice vibrations.

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Crossref · 10.1103/physrevb.73.144301

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Authors
Lyeo, H.-K., & Cahill, D. G.
Affiliations
University of Illinois Urbana-Champaign (US)
Venue
Physical Review B
Published
2006-04-03
Volume
73
Issue
14
ISSN
  • 1098-0121 (ISSN-L)
  • 1550-235X
OpenAlex
W2004164487
Cited by
576
References
28
Citations by year
2026: 19 · 2025: 33 · 2024: 26 · 2023: 19 · 2022: 38 · 2021: 34 · 2020: 31 · 2019: 47 · 2018: 48 · 2017: 31 · 2016: 34 · 2015: 31 · 2014: 26 · 2013: 30 · 2012: 26
FWCI
9.83
Type
journal article
Language
en
Open access
closed
Locations
Physical Review B (publishedVersion)
Funders
  • National Science Foundation
  • U.S. Department of Energy
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Thermal properties of materials
  • Physical Sciences › Engineering › Civil and Structural Engineering › Thermal Radiation and Cooling Technologies
  • Physical Sciences › Engineering › Mechanics of Materials › Thermography and Photoacoustic Techniques
Keywords
interface thermal conductance, metal-dielectric interface, lead, bismuth, hydrogen-terminated diamond, hydrogen-terminated silicon, silica, beryllium oxide, sapphire, electron-phonon coupling, radiation dose limits, lattice vibrations, time-domain thermoreflectance

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