Near-field thermal radiation between hyperbolic metamaterials: Graphite and carbon nanotubes

Journal Article · Mon Nov 18 00:00:00 EST 2013 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4832057· OSTI ID:22254034

Liu, X. L.; Zhang, R. Z.

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.

• OSTI ID: 22254034
• Journal Information: Applied Physics Letters, Vol. 103, Issue 21; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANISOTROPY
CARBON NANOTUBES
GRAPHITE
HEAT FLUX
HEAT TRANSFER
SILICON CARBIDES
THERMAL RADIATION