Enhanced near-field radiative heat transfer between core-shell nanoparticles through surface modes hybridization

Hu, Yang; Liu, Haotuo; Yang, Bing; Shi, Kezhang; Antezza, Mauro; Wu, Xiaohu; Sun, Yasong

doi:10.1016/j.fmre.2023.03.021

Fundamental Research

2023

DOI: 10.1016/j.fmre.2023.03.021

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Enhanced near-field radiative heat transfer between core-shell nanoparticles through surface modes hybridization

Yang Hu,

Haotuo Liu,

Bing Yang

et al.

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2024

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Cited by 3 publications

References 57 publications

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The potential of hyperbolic films for radiative heat transfer in micro/nanoscale

Wu,

Hu,

Liu

et al. 2024

DeCarbon

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The potential of hyperbolic films for radiative heat transfer in micro/nanoscale

Wu,

Hu,

Liu

et al. 2024

DeCarbon

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Radiative heat transfer between biaxial hyperbolic film in the far-field and near-field

Wu,

Hu,

Liu

et al. 2024

Materials Today Communications

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Control of the near-field radiative heat transfer between graphene-coated nanoparticle metasurfaces

Castillo-López,

Cortés-López,

Castillo-López

2024

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The control of near-field radiative heat transfer (NFRHT) between two metasurfaces can be achieved by manipulating the geometric and dielectric parameters of their components. Based on a 2D effective medium approximation, we describe the dielectric response of each metasurface composed of graphene-coated nanoparticles (GCNPs) on a 2D square lattice as a homogeneous uniaxial film. Wrapping Drude-like nanoparticles (NPs) with graphene enhances the effective plasmonic response of metasurfaces by significantly broadening the frequency range in which surface and hyperbolic waves can be excited by thermal photons. Consequently, the NFRHT between GCNP metasurfaces improves that observed between uncoated Drude-like nanoparticle arrays. We found that the heat flux (Q) grows with increasing metasurface packing fraction (PF) and is also sensitive to GCNP size. By tuning the graphene chemical potential , Q reaches a maximum improvement of for eV with cores made of Drude-like material, while using cores made of the polar dielectric SiC, Q increases up to for eV. Our results show that, in addition to the geometric control achieved with uncoated NP arrays, the tunable optical properties of the graphene shell allow dynamic control of the heat flux, expanding the possibilities for NFRHT engineering offered by GCNP metasurfaces.

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Enhanced near-field radiative heat transfer between core-shell nanoparticles through surface modes hybridization

Cited by 3 publications

References 57 publications

The potential of hyperbolic films for radiative heat transfer in micro/nanoscale

The potential of hyperbolic films for radiative heat transfer in micro/nanoscale

Radiative heat transfer between biaxial hyperbolic film in the far-field and near-field

Control of the near-field radiative heat transfer between graphene-coated nanoparticle metasurfaces

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