Investigation of phonon coherence and backscattering using silicon nanomeshes

Low thermal conductivities in nanomeshes have been attributed to both wave-like and particle-like behaviour of phonons. Here, the authors use periodicity-controlled silicon nanomeshes to show that the particle backscattering effect dominates for periodicities above 100 nm and temperatures above 14 K...

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Main Authors:	Jaeho Lee, Woochul Lee, Geoff Wehmeyer, Scott Dhuey, Deirdre L. Olynick, Stefano Cabrini, Chris Dames, Jeffrey J. Urban, Peidong Yang
Format:	Article
Language:	English
Published:	Nature Publishing Group 2017-01-01
Series:	Nature Communications
Online Access:	https://doi.org/10.1038/ncomms14054

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spelling	doaj-11fabd7f2d1b43879f517bb22cfd5bab2021-05-11T07:54:20ZengNature Publishing GroupNature Communications2041-17232017-01-01811810.1038/ncomms14054Investigation of phonon coherence and backscattering using silicon nanomeshesJaeho Lee0Woochul Lee1Geoff Wehmeyer2Scott Dhuey3Deirdre L. Olynick4Stefano Cabrini5Chris Dames6Jeffrey J. Urban7Peidong Yang8Department of Chemistry, University of CaliforniaDepartment of Chemistry, University of CaliforniaDepartment of Mechanical Engineering, University of CaliforniaMolecular Foundry, Lawrence Berkeley National LaboratoryMolecular Foundry, Lawrence Berkeley National LaboratoryMolecular Foundry, Lawrence Berkeley National LaboratoryDepartment of Mechanical Engineering, University of CaliforniaMolecular Foundry, Lawrence Berkeley National LaboratoryDepartment of Chemistry, University of CaliforniaLow thermal conductivities in nanomeshes have been attributed to both wave-like and particle-like behaviour of phonons. Here, the authors use periodicity-controlled silicon nanomeshes to show that the particle backscattering effect dominates for periodicities above 100 nm and temperatures above 14 K.https://doi.org/10.1038/ncomms14054
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Jaeho Lee Woochul Lee Geoff Wehmeyer Scott Dhuey Deirdre L. Olynick Stefano Cabrini Chris Dames Jeffrey J. Urban Peidong Yang
spellingShingle	Jaeho Lee Woochul Lee Geoff Wehmeyer Scott Dhuey Deirdre L. Olynick Stefano Cabrini Chris Dames Jeffrey J. Urban Peidong Yang Investigation of phonon coherence and backscattering using silicon nanomeshes Nature Communications
author_facet	Jaeho Lee Woochul Lee Geoff Wehmeyer Scott Dhuey Deirdre L. Olynick Stefano Cabrini Chris Dames Jeffrey J. Urban Peidong Yang
author_sort	Jaeho Lee
title	Investigation of phonon coherence and backscattering using silicon nanomeshes
title_short	Investigation of phonon coherence and backscattering using silicon nanomeshes
title_full	Investigation of phonon coherence and backscattering using silicon nanomeshes
title_fullStr	Investigation of phonon coherence and backscattering using silicon nanomeshes
title_full_unstemmed	Investigation of phonon coherence and backscattering using silicon nanomeshes
title_sort	investigation of phonon coherence and backscattering using silicon nanomeshes
publisher	Nature Publishing Group
series	Nature Communications
issn	2041-1723
publishDate	2017-01-01
description	Low thermal conductivities in nanomeshes have been attributed to both wave-like and particle-like behaviour of phonons. Here, the authors use periodicity-controlled silicon nanomeshes to show that the particle backscattering effect dominates for periodicities above 100 nm and temperatures above 14 K.
url	https://doi.org/10.1038/ncomms14054
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Investigation of phonon coherence and backscattering using silicon nanomeshes

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