Journal
APPLIED PHYSICS LETTERS
Volume 108, Issue 26, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4954739
Keywords
-
Categories
Funding
- National Science Foundation (USA) CAREER [1254931]
- National Science Foundation (USA) [CNS-0821794]
- University of Colorado Boulder
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [1254931] Funding Source: National Science Foundation
Ask authors/readers for more resources
Silicon membranes patterned by nanometer-scale pillars standing on the surface provide a practical platform for thermal conductivity reduction by resonance hybridizations. Using molecular simulations, we investigate the effects of nanopillar size, unit-cell size, and finite-structure size on the net capacity of the local resonators in reducing the thermal conductivity of the base membrane. The results indicate that the thermal conductivity reduction increases as the ratio of the volumetric size of a unit nanopillar to that of the base membrane is increased, and the intensity of this reduction varies with unit-cell size at a rate dependent on the volumetric ratio. Considering sample size, the resonance-induced thermal conductivity drop is shown to increase slightly with the number of unit cells until it would eventually level off. Published by AIP Publishing.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available