Nanoscale thermal transport
David G. Cahill,Wayne K. Ford,Kenneth E. Goodson,Gerald D. Mahan,Arun Majumdar,Humphrey J. Maris,Roberto Merlin,Simon R. Phillpot +7 more
Reads0
Chats0
TLDR
A review of the literature on thermal transport in nanoscale devices can be found in this article, where the authors highlight the recent developments in experiment, theory and computation that have occurred in the past ten years and summarizes the present status of the field.Abstract:
Rapid progress in the synthesis and processing of materials with structure on nanometer length scales has created a demand for greater scientific understanding of thermal transport in nanoscale devices, individual nanostructures, and nanostructured materials. This review emphasizes developments in experiment, theory, and computation that have occurred in the past ten years and summarizes the present status of the field. Interfaces between materials become increasingly important on small length scales. The thermal conductance of many solid–solid interfaces have been studied experimentally but the range of observed interface properties is much smaller than predicted by simple theory. Classical molecular dynamics simulations are emerging as a powerful tool for calculations of thermal conductance and phonon scattering, and may provide for a lively interplay of experiment and theory in the near term. Fundamental issues remain concerning the correct definitions of temperature in nonequilibrium nanoscale systems. Modern Si microelectronics are now firmly in the nanoscale regime—experiments have demonstrated that the close proximity of interfaces and the extremely small volume of heat dissipation strongly modifies thermal transport, thereby aggravating problems of thermal management. Microelectronic devices are too large to yield to atomic-level simulation in the foreseeable future and, therefore, calculations of thermal transport must rely on solutions of the Boltzmann transport equation; microscopic phonon scattering rates needed for predictive models are, even for Si, poorly known. Low-dimensional nanostructures, such as carbon nanotubes, are predicted to have novel transport properties; the first quantitative experiments of the thermal conductivity of nanotubes have recently been achieved using microfabricated measurement systems. Nanoscale porosity decreases the permittivity of amorphous dielectrics but porosity also strongly decreases the thermal conductivity. The promise of improved thermoelectric materials and problems of thermal management of optoelectronic devices have stimulated extensive studies of semiconductor superlattices; agreement between experiment and theory is generally poor. Advances in measurement methods, e.g., the 3ω method, time-domain thermoreflectance, sources of coherent phonons, microfabricated test structures, and the scanning thermal microscope, are enabling new capabilities for nanoscale thermal metrology.read more
Citations
More filters
Journal ArticleDOI
Three-terminal semiconductor junction thermoelectric devices: improving performance
Jian-Hua Jiang,Jian-Hua Jiang,Jian-Hua Jiang,Ora Entin-Wohlman,Ora Entin-Wohlman,Yoseph Imry +5 more
TL;DR: In this article, a three-terminal thermoelectric device based on a $p$-$i$-$n$ semiconductor junction is proposed, where the intrinsic region is mounted onto a, typically bosonic, thermal terminal.
Journal ArticleDOI
Dual-mode solid-state thermal rectification.
Ramesh Shrestha,Yuxuan Luan,Xiao Luo,Sunmi Shin,Teng Zhang,Phil M. Smith,Wei Gong,Michael R. Bockstaller,Tengfei Luo,Renkun Chen,Kedar Hippalgaonkar,Sheng Shen +11 more
TL;DR: An unusual dual-mode solid-state thermal rectification effect using a heterogeneous “irradiated-pristine” polyethylene nanofiber junction as a nanoscale thermal diode, in which heat flow can be rectified in both directions by changing the working temperature.
Journal ArticleDOI
Transient heat conduction analysis of a cracked half-plane using dual-phase-lag theory
K.Q. Hu,Zengtao Chen +1 more
TL;DR: In this article, the transient temperature field around a partially insulated crack in a halfplane is obtained by applying the dual-phase-lag heat conduction model and Fourier and Laplace transforms are applied.
Journal ArticleDOI
Phonon thermal conductivity of scandium nitride for thermoelectrics from first-principles calculations and thin-film growth
Sit Kerdsongpanya,Sit Kerdsongpanya,Olle Hellman,Olle Hellman,Bo Sun,Yee Kan Koh,Jun Lu,Ngo Van Nong,Sergei I. Simak,Björn Alling,Björn Alling,Per Eklund +11 more
TL;DR: In this article, a theoretical model for determining lattice thermal conductivity, which takes into account the effect of microstructure, is proposed, based on ab initio description that includes the temperature dependence of the interatomic force constants and treats anharmonic lattice vibrations.
Posted Content
Phonon Localization in Heat Conduction
Maria N. Luckyanova,Jonathan Mendoza,Hong Lu,Shengxi Huang,Jiawei Zhou,Mingda Li,Brian J. Kirby,Alexander J. Grutter,Alexander A. Puretzky,Mildred S. Dresselhaus,Arthur C. Gossard,Gang Chen +11 more
TL;DR: In this article, the authors reported localization behavior in phonon heat conduction due to multiple scattering and interference of phonon waves, observed through measurements of the thermal conductivities of GaAs/AlAs superlattices with ErAs nanodots randomly distributed at the interfaces.
References
More filters
Fast parallel algorithms for short-range molecular dynamics
TL;DR: Comparing the results to the fastest reported vectorized Cray Y-MP and C90 algorithm shows that the current generation of parallel machines is competitive with conventional vector supercomputers even for small problems.
Book
Conduction of Heat in Solids
H. S. Carslaw,John Conrad Jaeger +1 more
TL;DR: In this paper, a classic account describes the known exact solutions of problems of heat flow, with detailed discussion of all the most important boundary value problems, including boundary value maximization.
Journal ArticleDOI
Atomic force microscope
TL;DR: The atomic force microscope as mentioned in this paper is a combination of the principles of the scanning tunneling microscope and the stylus profilometer, which was proposed as a method to measure forces as small as 10-18 N. As one application for this concept, they introduce a new type of microscope capable of investigating surfaces of insulators on an atomic scale.
Book
The theory of polymer dynamics
Masao Doi,Sam F. Edwards +1 more
TL;DR: In this article, the viscoelasticity of polymeric liquids was studied in the context of rigid rod-like polymers and concentrated solutions of rigid rods like polymers.
Journal ArticleDOI
Vapor‐liquid‐solid mechanism of single crystal growth
R. S. Wagner,W. C. Ellis +1 more