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Vish Prasad (open in a new tab) Department of Mechanical Engineering, University of North Texas, Denton, Texas 76207, USA
Yogesh Jaluria (open in a new tab) Department of Mechanical and Aerospace Engineering, Rutgers-New Brunswick, The State University of New Jersey, Piscataway, NJ 08854, USA
Zhuomin M. Zhang (open in a new tab) George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA

ISSN Print: 1049-0787

ISSN Online: 2375-0294

SJR: 0.363 SNIP: 0.21 CiteScore™:: 1.8

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THERMAL TRANSPORT IN LOW-DIMENSIONAL NANOSTRUCTURES

pages 103-127
DOI: 10.1615/AnnualRevHeatTransfer.v14.110
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摘要

Thermal transport in low-dimensional nanostructures is important for next-generation microelectronic cooling techniques, novel solid-state energy conversion devices, and micro-nanoscale sensors and actuators. Thermal transport caused by lattice vibrations or phonons in nanostructures is very complicated due to the comparable phonon mean-free-path, phonon wavelength, and characteristic size of nanostructures. The comparable length scales lead to novel transport phenomena that do not exist in bulk materials. Significant progress has been made both theoretically and experimentally in understanding the thermal transport in nanostructures during last decade. In this paper, we first reviewed the fundamental theory of phonon transport and the size confinement effects on phonon transport. Recent work on thermal transport in multilayers and superlattices were then summarized with emphasis on the understanding of underlying physics. The effects of acoustic mismatch, interface roughness, interface defects and dislocations, phonon mini-bandgaps, and dispersion mismatch were discussed. Finally, recent studies on thermal transport in nanowires and nanotubes were reviewed. Boundary scattering, phonon dispersion modification, and quantum confinement on phonon energy states were discussed based on available experimental results.

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