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Ultrahigh thermal isolation across heterogeneously layered two-dimensional materials
Heterogeneous integration of nanomaterials has enabled advanced electronics and photonics applications. However, similar progress has been challenging for thermal applications, in part due to shorter wavelengths of heat carriers (phonons) compared to electrons and photons. Here, we demonstrate unusu...
Autores principales: | , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Association for the Advancement of Science
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6697438/ https://www.ncbi.nlm.nih.gov/pubmed/31453337 http://dx.doi.org/10.1126/sciadv.aax1325 |
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author | Vaziri, Sam Yalon, Eilam Muñoz Rojo, Miguel Suryavanshi, Saurabh V. Zhang, Huairuo McClellan, Connor J. Bailey, Connor S. Smithe, Kirby K. H. Gabourie, Alexander J. Chen, Victoria Deshmukh, Sanchit Bendersky, Leonid Davydov, Albert V. Pop, Eric |
author_facet | Vaziri, Sam Yalon, Eilam Muñoz Rojo, Miguel Suryavanshi, Saurabh V. Zhang, Huairuo McClellan, Connor J. Bailey, Connor S. Smithe, Kirby K. H. Gabourie, Alexander J. Chen, Victoria Deshmukh, Sanchit Bendersky, Leonid Davydov, Albert V. Pop, Eric |
author_sort | Vaziri, Sam |
collection | PubMed |
description | Heterogeneous integration of nanomaterials has enabled advanced electronics and photonics applications. However, similar progress has been challenging for thermal applications, in part due to shorter wavelengths of heat carriers (phonons) compared to electrons and photons. Here, we demonstrate unusually high thermal isolation across ultrathin heterostructures, achieved by layering atomically thin two-dimensional (2D) materials. We realize artificial stacks of monolayer graphene, MoS(2), and WSe(2) with thermal resistance greater than 100 times thicker SiO(2) and effective thermal conductivity lower than air at room temperature. Using Raman thermometry, we simultaneously identify the thermal resistance between any 2D monolayers in the stack. Ultrahigh thermal isolation is achieved through the mismatch in mass density and phonon density of states between the 2D layers. These thermal metamaterials are an example in the emerging field of phononics and could find applications where ultrathin thermal insulation is desired, in thermal energy harvesting, or for routing heat in ultracompact geometries. |
format | Online Article Text |
id | pubmed-6697438 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-66974382019-08-26 Ultrahigh thermal isolation across heterogeneously layered two-dimensional materials Vaziri, Sam Yalon, Eilam Muñoz Rojo, Miguel Suryavanshi, Saurabh V. Zhang, Huairuo McClellan, Connor J. Bailey, Connor S. Smithe, Kirby K. H. Gabourie, Alexander J. Chen, Victoria Deshmukh, Sanchit Bendersky, Leonid Davydov, Albert V. Pop, Eric Sci Adv Research Articles Heterogeneous integration of nanomaterials has enabled advanced electronics and photonics applications. However, similar progress has been challenging for thermal applications, in part due to shorter wavelengths of heat carriers (phonons) compared to electrons and photons. Here, we demonstrate unusually high thermal isolation across ultrathin heterostructures, achieved by layering atomically thin two-dimensional (2D) materials. We realize artificial stacks of monolayer graphene, MoS(2), and WSe(2) with thermal resistance greater than 100 times thicker SiO(2) and effective thermal conductivity lower than air at room temperature. Using Raman thermometry, we simultaneously identify the thermal resistance between any 2D monolayers in the stack. Ultrahigh thermal isolation is achieved through the mismatch in mass density and phonon density of states between the 2D layers. These thermal metamaterials are an example in the emerging field of phononics and could find applications where ultrathin thermal insulation is desired, in thermal energy harvesting, or for routing heat in ultracompact geometries. American Association for the Advancement of Science 2019-08-16 /pmc/articles/PMC6697438/ /pubmed/31453337 http://dx.doi.org/10.1126/sciadv.aax1325 Text en Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (http://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. |
spellingShingle | Research Articles Vaziri, Sam Yalon, Eilam Muñoz Rojo, Miguel Suryavanshi, Saurabh V. Zhang, Huairuo McClellan, Connor J. Bailey, Connor S. Smithe, Kirby K. H. Gabourie, Alexander J. Chen, Victoria Deshmukh, Sanchit Bendersky, Leonid Davydov, Albert V. Pop, Eric Ultrahigh thermal isolation across heterogeneously layered two-dimensional materials |
title | Ultrahigh thermal isolation across heterogeneously layered two-dimensional materials |
title_full | Ultrahigh thermal isolation across heterogeneously layered two-dimensional materials |
title_fullStr | Ultrahigh thermal isolation across heterogeneously layered two-dimensional materials |
title_full_unstemmed | Ultrahigh thermal isolation across heterogeneously layered two-dimensional materials |
title_short | Ultrahigh thermal isolation across heterogeneously layered two-dimensional materials |
title_sort | ultrahigh thermal isolation across heterogeneously layered two-dimensional materials |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6697438/ https://www.ncbi.nlm.nih.gov/pubmed/31453337 http://dx.doi.org/10.1126/sciadv.aax1325 |
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