| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Lacroix, David
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Topics
Publications (14/14 displayed)
- 2023Thermal properties of nanoporous materials, large scale modelling with the use of Monte Carlo phonon transport autocorrelationcitations
- 2023Thermal properties of nanoporous materials, large scale modelling with the use of Monte Carlo phonon transport autocorrelationcitations
- 2023Tuning the physico-chemical properties of SnSe films by pulse electrodepositioncitations
- 2023Thermal transport properties of porous silicon filled by ionic liquid nanocomposite systemcitations
- 2021Features of thermal transport in "porous matrix/liquid" nanocomposite system
- 2020Thermal transport enhancement of hybrid nanocomposites; impact of confined water inside nanoporous siliconcitations
- 2019Nanowire forest of pnictogen-chalcogenide alloys for thermoelectricitycitations
- 2019Thermal conductivity of “porous silicon – water” nanocomposite with molecular dynamics
- 2018Influence of amorphous layers on the thermal conductivity of phononic crystalscitations
- 2018Enhanced thermal conductivity in percolating nanocomposites: a molecular dynamics investigationcitations
- 2017Ballistic versus diffusive transport in the thermal conductivity of a two-phase nanocomposite material
- 2017Spherical and Cylindrical Pores with Amorphous Shells, Impact on the Thermal Transport
- 2017Effect of the amorphization around spherical nano-pores on the thermal conductivity of nano-porous Siliconcitations
- 2016Crystalline-amorphous silicon nano-composites: Nano-pores and nano-inclusions impact on the thermal conductivitycitations
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article
Influence of amorphous layers on the thermal conductivity of phononic crystals
Abstract
The impact of amorphous phases around the holes and at the upper and lower free surfaces on thermal transport in silicon phononic membranes is studied. By means of molecular dynamics and Monte Carlo simulations, we explore the impact of the amorphous phase (oxidation and amorphous silicon), surfaces roughness, and a series of geometric parameters on thermal transport. We show that the crystalline phase drives the phenomena; the two main parameters are (i) the crystalline fraction between two holes and (ii) the crystalline thickness of the membranes. We reveal the hierarchical impact of nanostructurations on the thermal conductivity, namely, from the most resistive to the less resistive: the creation of holes, the amorphous phase around them, and the amorphization of the membranes edges. The surfaces or interfaces perpendicular to the heat flow hinder the thermal conductivity to a much greater extent than those parallel to the heat flow.