Publication
Heat-transfer at the interface between a metal and a non-metal: influence of ultra-thin interlayers, interface chemistry and atomic order
Related publications (97)
Unearthing the foundational role of anharmonicity in heat transport in glasses
The time-honored Allen -Feldman theory of heat transport in glasses is generally assumed to predict a finite value for the thermal conductivity, even if it neglects the anharmonic broadening of vibrational normal modes. We demonstrate that the harmonic app ...
Amer Physical Soc2024Near-junction microfluidic cooling for high power-density GaN-on-Si electronics: A wafer, device, packaging, and system-level investigation
Remco Franciscus Peter van Erp
Electrification of the energy section, from generation to end-use, plays an essential role in reducing global CO2 emission. Innovations in power electronics are required to increase conversion efficiency and power density. Gallium nitride (GaN) transistors ...
EPFL2022Conductive Heat Transfer in Partially Saturated Gas Diffusion Layers with Evaporative Cooling
Sophia Haussener, Felix N. Büchi, Mirco Magnini
Heat transport is an important, though often neglected function of gas diffusion layers (GDLs) of polymer electrolyte membrane fuel cells. Thermal conductivity is a key property, especially in partially water saturated GDLs and when the phase change of wat ...
2022Wigner Formulation of Thermal Transport in Solids
Nicola Marzari, Michele Simoncelli
Two different heat-transport mechanisms are discussed in solids. In crystals, heat carriers propagate and scatter particlelike as described by Peierls's formulation of the Boltzmann transport equation for phonon wave packets. In glasses, instead, carriers ...
AMER PHYSICAL SOC2022Atomic doping & coating for Electrocatalysis & Li-ion batteries
Albert Claude Jean-Pierre Daubry
molybdenum atomic-doping on bio-waste derived nitrogen-doped conductive carbon electrocatalyst was synthesized and investigated for the dinitrogen reduction to ammonia in alkaline media. The assessment of the catalytic activity was found to be non-trivial ...
EPFL2022Thermal transport beyond Fourier, and beyond Boltzmann
Crystals and glasses exhibit fundamentally different heat conduction mechanisms: the periodicity of crystals allows for the excitation of propagating vibrational waves that carry heat, as first discussed by Peierls in 1929, while in glasses the lack of per ...
EPFL2021