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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-474-8

ISBN Online: 978-1-56700-473-1

International Heat Transfer Conference 16
August, 10-15, 2018, Beijing, China

NEAR-FIELD THERMAL RADIATION IN MANY-BODY SYSTEMS COMPOSED OF CORE-SHELL NANOPARTICLES

Get access (open in a dialog) DOI: 10.1615/IHTC16.rti.022393
pages 8233-8242

Résumé

Thermal Radiative transfer is enhanced significantly when the distance of the radiation sources decreases to micro-nanoscales, which is smaller than the characteristic wavelength of thermal radiation. However, most of former researches solve the thermal radiation between two or three nanoparticles while few works have been done on many-body systems composed of core-shell nanoparticles. In this work, we describe a theoretical investigation of the near-field thermal radiative transfer between the core-shell nanoparticles. And the effect of mutual interaction on thermal radiative transfer in many body systems are also investigated. Silicon carbide and n-type germanium are chosen as two constituent materials of the core-shell nanoparticle. The numerical results demonstrate that the spectrum of thermal radiative transfer exhibits novel features due to the core-shell structure and mutual interaction. The core-shell nanoparticles exhibit spectral features similar to features found in the spectra of their components. And by changing the radius of the core, the spectral features will make corresponding changes. Moreover, the results show that mutual interaction has a disadvantage effect on enhancing the thermal radiative transfer in such a many-body system.