PAGS Seminar: Thermal Conductivity of lead chalcogenide nanowires using a Monte Carlo method
Please join Dr. Gary Pennington this Friday, December 4th at 11:00am for the PAGS Department Webex Seminar when he will host PAGS graduate student, Mr. Mack Adrian Dela Cruz.
Link for Colloquium on Friday 12/4/20 11 AM
https://towson.webex.com/towson/j.php?MTID=mb0e5bcb5a7e6c0fa29c0863285c999c2
Meeting number: 120 957 9789
Password: d7WaKK88YTa
Thermal Conductivity of lead chalcogenide nanowires using a Monte Carlo method
By Mack Adrian Dela Cruz, PAGS Dept. Towson University
Host and Advisor: Gary Pennington
In the past few years, work on lead chalcogenide alloys of PbSe, and PbTe has shown interesting tunability of electronic properties. The thermal properties of such materials are of interest for thermoelectric applications. We consider a low-dimensionality nanowire alloy heterostructure, which generally has a lower thermal conductivity when compared to bulk. Using a computationally efficient shell model for the bulk material, we approximate the nanowire phonon dispersion. Phonon transport is modeled with an energy deviational Monte Carlo formulation of the Boltzmann transport equation. The phonon scattering mechanisms considered are phonon-phonon, boundary defect, interface, alloy, and strain. We will report on the further tunability of thermal conductivity by manipulating nanowire heterostructures of these lead chalcogenide alloys.
Categorised in: General
This post was written by Charles, Amanda G.