Accelerated discovery of a large family of quaternary chalcogenides with very low lattice thermal conductivity

Low lattice thermal conductivity of stanene

A fundamental understanding of phonon transport in stanene is crucial to predict the thermal performance in potential stanene-based devices. By combining first-principle calculation and phonon Boltzmann transport equation, we obtain the lattice thermal conductivity of stanene. A much lower thermal conductivity (11.6 W/mK) is observed in stanene, which indicates higher thermoelectric efficiency ...

Enhanced thermoelectric performance in the very low thermal conductivity Ag2Se0.5Te0.5

Resonant bonding leads to low lattice thermal conductivity.

Understanding the lattice dynamics and low thermal conductivities of IV-VI, V2-VI3 and V materials is critical to the development of better thermoelectric and phase-change materials. Here we provide a link between chemical bonding and low thermal conductivity. Our first-principles calculations reveal that long-ranged interaction along the 〈100〉 direction of the rocksalt structure exist in lead ...

Lattice thermal conductivity of graphene with conventionally isotopic defects.

The thermal conductivity of doped graphene flake of finite size is investigated with emphasis on the influence of the mass of the substituting atoms on this property. It is shown that graphene doping by small concentrations of relatively heavy atoms results in a disproportionately large drop in lattice thermal conductivity.

Experimental Investigation of the Alumina/Paraffin Thermal Conductivity Nanofluids with a New Correlated Equation on Effective Thermal Conductivity

Liquid paraffin as a coolant fluid can be  applied in electronic devices as a result to its suitable capabilities such as electrical insulating, high heat capacity, chemical and thermal stability, and high boiling point. However, the poor thermal conductivity of paraffin has been confined its thermal cooling application. Addition of high conductor nanoparticles to paraffin can fix this drawback...