Journal
APPLIED PHYSICS LETTERS
Volume 103, Issue 21, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.4832057
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Funding
- Department of Energy [DE-FG02-06ER46343]
- National Science Foundation [CBET-1235975]
- Directorate For Engineering
- Div Of Chem, Bioeng, Env, & Transp Sys [1235975] Funding Source: National Science Foundation
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The near-field radiative heat transfer for two hyperbolic metamaterials, namely, graphite and vertically aligned carbon nanotubes (CNTs), is investigated. Graphite is a naturally existing uniaxial medium, while CNT arrays can be modeled as an effective anisotropic medium. Different hyperbolic modes can be separately supported by these materials in certain infrared regions, resulting in a strong enhancement in near-field heat transfer. It is predicted that the heat flux between two CNT arrays can exceed that between SiC plates at any vacuum gap distance and is about 10 times higher with a 10 nm gap. (C) 2013 AIP Publishing LLC.
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