Boosting Thermal Conductivity by Surface Plasmon Polaritons Propagating along a Thin Ti Film.
Phys Rev Lett
; 130(17): 176302, 2023 Apr 28.
Article
em En
| MEDLINE
| ID: mdl-37172259
ABSTRACT
We experimentally demonstrate boosted in-plane thermal conduction by surface plasmon polaritons (SPPs) propagating along a thin Ti film on a glass substrate. Due to the lossy nature of metal, SPPs can propagate over centimeter-scale distances even along a supported metal film, and the resulting ballistic heat conduction can be quantitatively validated. Further, for a 100-nm-thick Ti film on a glass substrate, a significant enhancement of in-plane thermal conductivity compared to bulk value (â¼25%) is experimentally shown. This Letter will provide a new avenue to employ SPPs for heat dissipation along a supported thin film, which can be readily applied to mitigate hot-spot issues in microelectronics.
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MEDLINE
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En
Ano de publicação:
2023
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Article