Tags: thermal transport


Thermal transport at sub-micron scales differs substantially from that at normal length scales. Physical laws for heat transfer, such as Fourier's law for heat conduction, fail when the mean free path of energy carriers becomes comparable to the length scales of interest. This occurs in modern microelectronic devices, where for example, channel dimensions, now below 100 nm in length, are comparable to the mean free path of phonons in silicon at room temperature. Research in the nanoscale thermal transport area addresses novel physics at small length and time scales and novel technologies that exploit this class of physics.

Learn more about nanoscale thermo transport from the resources available on this site, listed below.

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  1. Young Suh Song

    Mr. Song is a researcher who has worked in the field of semiconductor. His current research interests have included CMOS, CNT, III-V devices, high electron mobility transistor (HEMT), semiconductor...


  2. Hydrodynamic Phenomena in Thermal Transport

    01 Sep 2022 | | Contributor(s):: F. Xavier Alvarez

    The talk will cover some of the most recent evidences in the theoretical and experimental research on thermal transport and we will analyze them in the framework of the Kinetic/Collective model (KCM), developed to give a more generalized framework to describe thermal experiments.

  3. Thermal Energy at the Nanoscale

    31 Jan 2022 | | Contributor(s):: Timothy S Fisher

    These lecture notes provide a detailed treatment of the thermal energy storage and transport by conduction in natural and fabricated structures.

  4. Fusing Light With Heat: Polaritons for Nanoscale Thermal Transport & Sensing

    07 Oct 2021 | | Contributor(s):: Thomas Beechem

    Light exhibits a wave nature.  Phonons do too.  Within the infrared portion of the spectrum, these differing “waves” can interact to form hybrid energy carriers called polaritons.  Polaritons, in turn, provide fundamental advantages for optical functionality and...

  5. Aminul Islam Olin


  6. ME 697R Lecture 5.5A: First Principles Method - Development of Empirical Interatomic Potentials using DFT I

    18 Feb 2020 | | Contributor(s):: Xiulin Ruan

  7. Solar Ovens: Understanding Energy Transfer

    28 Jan 2020 | | Contributor(s):: Christina Levyssohn-Silva, NNCI Nano

    At the end of this lesson, students will understand that solar energy radiates from the sun to the Earth and gets trapped within the oven. Students will be able to explain how the thermal energy flows from the hot air to the cold water via conduction and will indicate that this would continue...

  8. ME 697R Lecture 5.2: First Principles Method - Electronic Structure of Solids

    29 Oct 2019 | | Contributor(s):: Xiulin Ruan

  9. ME 697R: Computation Methods for Nanoscale Energy Transport

    21 Aug 2019 | | Contributor(s):: Xiulin Ruan

    Fall 2019 This Course is in productionThis course provides a detailed presentation of the computational methods used to treat energy transport and conversion in the atomic and nanoscales. The methods include lattice dynamics, molecular dynamics, first principles calculations, Boltzmann transport...

  10. Research in Xu’s Group

    07 Aug 2019 | | Contributor(s):: Xianfan Xu

  11. Se Kwon Kim


  12. Electronic Structure and Transport Properties of Graphene on Hexagonal Boron Nitride

    06 Dec 2018 | | Contributor(s):: Shukai Yao, Luis Regalado Bermejo, Alejandro Strachan

      Graphene is a zero-bandgap conductor with high carrier mobility. It is desired to search for an opening of band structure of graphene such that this kind of material can be applied in electronic devices. Depositing hexagonal Boron Nitride (h-BN) opens a bandgap in the band structure of...

  13. Developing a machine learning tool to optimize thermal transport

    14 Aug 2018 | | Contributor(s):: Adam Sandor Garrett, proycho, Xiulin Ruan, creynolds

    The purpose of this tool is to optimize SiGe super-lattices to have the lowest possible thermal conductivity. This poster describes the processes used in the tool and how it impacts thermoelectrics.

  14. Sebastian Jan Juchnowski


  15. Spectral analysis of non-equilibrium molecular dynamics

    28 Jun 2017 | | Contributor(s):: Tianli Feng, Yang Zhong, Divya Chalise, Xiulin Ruan

    Extract the phonon modal temperature and heat flux from non-equilibrium molecular dynamics

  16. Milad Yarali


  17. Truncated Levy model for TDTR

    22 Nov 2016 | | Contributor(s):: Amr Mohammed, Ali Shakouri

    Simulate the transient thermal response of materials probed using optical pump probe experiment (TDTR)

  18. Fundamentals of Phonon Transport Modeling L1: Introduction

    03 Jan 2017 | | Contributor(s):: Alan McGaughey, Xiulin Ruan

    Part of the 2016 IMECE Tutorial: Fundamentals of Phonon Transport Modeling: Formulation, Implementation, and Applications.

  19. Fundamentals of Phonon Transport Modeling L2: MD Simulation, Green Kubo, Direct Method

    03 Jan 2017 | | Contributor(s):: Xiulin Ruan, Alan McGaughey

    Part of the 2016 IMECE Tutorial: Fundamentals of Phonon Transport Modeling: Formulation, Implementation, and Applications.

  20. Fundamentals of Phonon Transport Modeling L3: Harmonic Lattice Dynamics, Spectral Methods

    03 Jan 2017 | | Contributor(s):: Xiulin Ruan, Alan McGaughey

    Part of the 2016 IMECE Tutorial: Fundamentals of Phonon Transport Modeling: Formulation, Implementation, and Applications.