Reconstructing phonon mean-free-path contributions to thermal conductivity using nanoscale membranes
Knowledge of the mean-free-path distribution of heat-carrying phonons is key to understanding phonon-mediated thermal transport. We demonstrate that thermal conductivity measurements of thin membranes spanning a wide thickness range can be used to characterize how bulk thermal conductivity is distri...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2015
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| Online Access: | http://hdl.handle.net/1721.1/97463 https://orcid.org/0000-0002-3968-8530 https://orcid.org/0000-0001-7804-5418 https://orcid.org/0000-0001-9157-6491 |
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| author | Cuffe, John Collins, Kimberlee C. Shchepetov, Andrey Prunnila, Mika Ahopelto, Jouni Sotomayor Torres, Clivia M. Chen, Gang Eliason, Jeffrey Kristian Maznev, Alexei Johnson, Jeremiah A. Nelson, Keith Adam |
| author2 | Massachusetts Institute of Technology. Department of Chemistry |
| author_facet | Massachusetts Institute of Technology. Department of Chemistry Cuffe, John Collins, Kimberlee C. Shchepetov, Andrey Prunnila, Mika Ahopelto, Jouni Sotomayor Torres, Clivia M. Chen, Gang Eliason, Jeffrey Kristian Maznev, Alexei Johnson, Jeremiah A. Nelson, Keith Adam |
| author_sort | Cuffe, John |
| collection | MIT |
| description | Knowledge of the mean-free-path distribution of heat-carrying phonons is key to understanding phonon-mediated thermal transport. We demonstrate that thermal conductivity measurements of thin membranes spanning a wide thickness range can be used to characterize how bulk thermal conductivity is distributed over phonon mean free paths. A noncontact transient thermal grating technique was used to measure the thermal conductivity of suspended Si membranes ranging from 15–1500 nm in thickness. A decrease in the thermal conductivity from 74–13% of the bulk value is observed over this thickness range, which is attributed to diffuse phonon boundary scattering. Due to the well-defined relation between the membrane thickness and phonon mean-free-path suppression, combined with the range and accuracy of the measurements, we can reconstruct the bulk thermal conductivity accumulation vs. phonon mean free path, and compare with theoretical models. |
| first_indexed | 2024-09-23T17:05:35Z |
| format | Article |
| id | mit-1721.1/97463 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T17:05:35Z |
| publishDate | 2015 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/974632022-10-03T10:20:05Z Reconstructing phonon mean-free-path contributions to thermal conductivity using nanoscale membranes Cuffe, John Collins, Kimberlee C. Shchepetov, Andrey Prunnila, Mika Ahopelto, Jouni Sotomayor Torres, Clivia M. Chen, Gang Eliason, Jeffrey Kristian Maznev, Alexei Johnson, Jeremiah A. Nelson, Keith Adam Massachusetts Institute of Technology. Department of Chemistry Massachusetts Institute of Technology. Department of Mechanical Engineering Cuffe, John Eliason, Jeffrey Kristian Maznev, Alexei Collins, Kimberlee C. Johnson, Jeremiah A. Chen, Gang Nelson, Keith Adam Knowledge of the mean-free-path distribution of heat-carrying phonons is key to understanding phonon-mediated thermal transport. We demonstrate that thermal conductivity measurements of thin membranes spanning a wide thickness range can be used to characterize how bulk thermal conductivity is distributed over phonon mean free paths. A noncontact transient thermal grating technique was used to measure the thermal conductivity of suspended Si membranes ranging from 15–1500 nm in thickness. A decrease in the thermal conductivity from 74–13% of the bulk value is observed over this thickness range, which is attributed to diffuse phonon boundary scattering. Due to the well-defined relation between the membrane thickness and phonon mean-free-path suppression, combined with the range and accuracy of the measurements, we can reconstruct the bulk thermal conductivity accumulation vs. phonon mean free path, and compare with theoretical models. United States. Dept. of Energy. Office of Science (Solid-State Solar-Thermal Energy Conversion Center Grant DE-SC0001299/DE-FG02-09ER46577) Academy of Finland (Grant 252598) Seventh Framework Programme (European Commission) (ENERGY FET Project MERGING Grant 309150) Spanish Plan Nacional project TAPHOR (MAT-2012-31392) 2015-06-18T13:40:48Z 2015-06-18T13:40:48Z 2015-06 2014-08 2015-06-17T22:00:03Z Article http://purl.org/eprint/type/JournalArticle 1098-0121 1550-235X http://hdl.handle.net/1721.1/97463 Cuffe, John, Jeffrey K. Eliason, A. A. Maznev, Kimberlee C. Collins, Jeremy A. Johnson, Andrey Shchepetov, Mika Prunnila, et al. “Reconstructing Phonon Mean-Free-Path Contributions to Thermal Conductivity Using Nanoscale Membranes.” Phys. Rev. B 91, no. 24 (June 2015). © 2015 American Physical Society https://orcid.org/0000-0002-3968-8530 https://orcid.org/0000-0001-7804-5418 https://orcid.org/0000-0001-9157-6491 en http://dx.doi.org/10.1103/PhysRevB.91.245423 Physical Review B Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Cuffe, John Collins, Kimberlee C. Shchepetov, Andrey Prunnila, Mika Ahopelto, Jouni Sotomayor Torres, Clivia M. Chen, Gang Eliason, Jeffrey Kristian Maznev, Alexei Johnson, Jeremiah A. Nelson, Keith Adam Reconstructing phonon mean-free-path contributions to thermal conductivity using nanoscale membranes |
| title | Reconstructing phonon mean-free-path contributions to thermal conductivity using nanoscale membranes |
| title_full | Reconstructing phonon mean-free-path contributions to thermal conductivity using nanoscale membranes |
| title_fullStr | Reconstructing phonon mean-free-path contributions to thermal conductivity using nanoscale membranes |
| title_full_unstemmed | Reconstructing phonon mean-free-path contributions to thermal conductivity using nanoscale membranes |
| title_short | Reconstructing phonon mean-free-path contributions to thermal conductivity using nanoscale membranes |
| title_sort | reconstructing phonon mean free path contributions to thermal conductivity using nanoscale membranes |
| url | http://hdl.handle.net/1721.1/97463 https://orcid.org/0000-0002-3968-8530 https://orcid.org/0000-0001-7804-5418 https://orcid.org/0000-0001-9157-6491 |
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