9 citations · 33 across the 8 of their papers we have counts for
8 papers
Understanding Phonon Scattering by Nano-Precipitates in Potassium-Doped Lead Chalcogenides
Zhao Wang, Xiaolong Yang, Dan Feng +8
We present a comprehensive experimental and theoretical study of phonon scattering by nanoprecipitates in potassium-doped PbTe, PbSe and PbS. We highlight the role of the precipita…
Effect of size distribution on the adhesion of nanoscale asperities
Xiaolong Yang, Zhao Wang
We study the effect of asperity size on the adhesion properties of metal contact using atomistic simulations. The simulated size effect of individual nanoscale asperityies is appli…
Size effect on the spontaneous coalescence of nanowires
Zhenyan Wu, Xiaolong Yang, Zhao Wang
This paper investigates the size effect on the coalescence process of contacting nanoparticles. It is revealed by molecular dynamics that the nanometer-sized surface curvature coup…
Diffusive versus displacive contact plasticity of nanoscale asperities: Temperature- and velocity-dependent strongest size
Wei Guo, Zhao Wang, Ju Li
We predict a strongest size for the contact strength when asperity radii of curvature decrease below ten nanometers. The reason for such strongest size is found to be correlated wi…
Mechanisms governing phonon scattering by topological defects in graphene nanoribbons
Ziming Zhu, Xiaolong Yang, Mingyuan Huang +3
Understanding phonon scattering by topological defects in graphene is of particular interest for thermal management in graphene-based devices. We present a study that quantifies th…
Optimizing phonon scattering by nanoprecipitates in lead chalcogenides
Xiaolong Yang, Jesús Carrete, Zhao Wang
We calculate the thermal conductivity of PbTe and PbS with seven different types of nanoprecipitates using an ab-initio-based Boltzmann transport approach. We find that precipitate…
Atomistic mechanisms governing structural stability change of zinc antimony thermoelectrics
Xiaolong Yang, Jianping Lin, Guanjun Qiao +1
The structural stability of thermoelectric materials is a subject of growing importance for their energy harvesting applications. Here, we study the microscopic mechanisms governin…
Role of force-constant difference in phonon scattering by nano-precipitates in PbTe
Xiaolong Yang, Jesús Carrete, Zhao Wang
We study the effect of nanoscale precipitates on lattice thermal conduction in thermoelectric PbTe using a combination of ab-initio phonon calculations and molecular dynamics. We t…