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Near-Field Heat Transfer in Composite Media Based on Uniformely Dispersed Nanoparticles

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Near-field radiative heat transfer is investigated in composite media including nanoparticles. By modeling pair interactions only, the effective thermal conductivity due to near field radiation is calculated based on a thermal nodes model. We highlight the onset of a near-field percolation occurring much earlier than the mechanical percolation at critical volume fraction f = 0.033. This mechanism drastically increases the thermal conductivity even at low volume fractions. It also indicates a simple experimental protocol to prove near-field contact.


Document Type: Research Article


Publication date: 2006-08-01

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  • Journal of Nanoelectronics and Optoelectronics (JNO) is an international and cross-disciplinary peer reviewed journal to consolidate emerging experimental and theoretical research activities in the areas of nanoscale electronic and optoelectronic materials and devices into a single and unique reference source. JNO aims to facilitate the dissemination of interdisciplinary research results in the inter-related and converging fields of nanoelectronics and optoelectronics.
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