Journal
APPLIED PHYSICS LETTERS
Volume 96, Issue 2, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3292203
Keywords
carbon nanotubes; contact resistance; filled polymers; molecular dynamics method; nanocomposites; nanotechnology; thermal conductivity; thermal resistance
Categories
Funding
- Lockheed Martin Corporate
- U.S. National Science Foundation [0800306]
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [0800366] Funding Source: National Science Foundation
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [0800306] Funding Source: National Science Foundation
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We report on experimental measurements of contact thermal resistance between individual carbon nanotubes. Results indicate that the contact thermal conductance can increase by nearly two orders of magnitude (from 10(-8) to 10(-6) W/K) as the contact area increases from a cross contact to an aligned contact. Normalization with respect to the contact area leads to normalized contact thermal resistance on the order of 10(-9) m(2) K/W at room temperature, one order of magnitude lower than that from a molecular dynamics simulation in literature. These results should have important implications in the design of carbon nanotube-polymer composites for tunable thermal properties.
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