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An electrochemical thermal transistor
The ability to actively regulate heat flow at the nanoscale could be a game changer for applications in thermal management and energy harvesting. Such a breakthrough could also enable the control of heat flow using thermal circuits, in a manner analogous to electronic circuits. Here we demonstrate s...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6207649/ https://www.ncbi.nlm.nih.gov/pubmed/30375375 http://dx.doi.org/10.1038/s41467-018-06760-7 |
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author | Sood, Aditya Xiong, Feng Chen, Shunda Wang, Haotian Selli, Daniele Zhang, Jinsong McClellan, Connor J. Sun, Jie Donadio, Davide Cui, Yi Pop, Eric Goodson, Kenneth E. |
author_facet | Sood, Aditya Xiong, Feng Chen, Shunda Wang, Haotian Selli, Daniele Zhang, Jinsong McClellan, Connor J. Sun, Jie Donadio, Davide Cui, Yi Pop, Eric Goodson, Kenneth E. |
author_sort | Sood, Aditya |
collection | PubMed |
description | The ability to actively regulate heat flow at the nanoscale could be a game changer for applications in thermal management and energy harvesting. Such a breakthrough could also enable the control of heat flow using thermal circuits, in a manner analogous to electronic circuits. Here we demonstrate switchable thermal transistors with an order of magnitude thermal on/off ratio, based on reversible electrochemical lithium intercalation in MoS(2) thin films. We use spatially-resolved time-domain thermoreflectance to map the lithium ion distribution during device operation, and atomic force microscopy to show that the lithiated state correlates with increased thickness and surface roughness. First principles calculations reveal that the thermal conductance modulation is due to phonon scattering by lithium rattler modes, c-axis strain, and stacking disorder. This study lays the foundation for electrochemically-driven nanoscale thermal regulators, and establishes thermal metrology as a useful probe of spatio-temporal intercalant dynamics in nanomaterials. |
format | Online Article Text |
id | pubmed-6207649 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-62076492018-10-31 An electrochemical thermal transistor Sood, Aditya Xiong, Feng Chen, Shunda Wang, Haotian Selli, Daniele Zhang, Jinsong McClellan, Connor J. Sun, Jie Donadio, Davide Cui, Yi Pop, Eric Goodson, Kenneth E. Nat Commun Article The ability to actively regulate heat flow at the nanoscale could be a game changer for applications in thermal management and energy harvesting. Such a breakthrough could also enable the control of heat flow using thermal circuits, in a manner analogous to electronic circuits. Here we demonstrate switchable thermal transistors with an order of magnitude thermal on/off ratio, based on reversible electrochemical lithium intercalation in MoS(2) thin films. We use spatially-resolved time-domain thermoreflectance to map the lithium ion distribution during device operation, and atomic force microscopy to show that the lithiated state correlates with increased thickness and surface roughness. First principles calculations reveal that the thermal conductance modulation is due to phonon scattering by lithium rattler modes, c-axis strain, and stacking disorder. This study lays the foundation for electrochemically-driven nanoscale thermal regulators, and establishes thermal metrology as a useful probe of spatio-temporal intercalant dynamics in nanomaterials. Nature Publishing Group UK 2018-10-30 /pmc/articles/PMC6207649/ /pubmed/30375375 http://dx.doi.org/10.1038/s41467-018-06760-7 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Sood, Aditya Xiong, Feng Chen, Shunda Wang, Haotian Selli, Daniele Zhang, Jinsong McClellan, Connor J. Sun, Jie Donadio, Davide Cui, Yi Pop, Eric Goodson, Kenneth E. An electrochemical thermal transistor |
title | An electrochemical thermal transistor |
title_full | An electrochemical thermal transistor |
title_fullStr | An electrochemical thermal transistor |
title_full_unstemmed | An electrochemical thermal transistor |
title_short | An electrochemical thermal transistor |
title_sort | electrochemical thermal transistor |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6207649/ https://www.ncbi.nlm.nih.gov/pubmed/30375375 http://dx.doi.org/10.1038/s41467-018-06760-7 |
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