Tags: thermal transport

Description

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.

All Categories (1-20 of 76)

  1. 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...

  2. 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.

  3. Sebastian Jan Juchnowski

    http://nanohub.org/members/197883

  4. 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

  5. Milad Yarali

    http://nanohub.org/members/173671

  6. 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)

  7. 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.

  8. 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.

  9. 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.

  10. Fundamentals of Phonon Transport Modeling L4: Anharmonic Lattice dynamics, First Principles

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

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

  11. Fundamentals of Phonon Transport Modeling L6: Phonon-Electron Coupling and Non-equilibrium

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

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

  12. Filipe Correia

    http://nanohub.org/members/160638

  13. Radiative Heat Transfer at the Nanoscale

    12 Dec 2016 | | Contributor(s):: Pramod Reddy

    In this talk, I will describe ongoing efforts in our group to experimentally elucidate nanoscale heat radiation. Specifically, I will present our recent experimental work where we have addressed the following questions: 1) Can existing theories accurately describe radiative heat transfer in...

  14. Heat Under the Microscope:
 Uncovering the Microscopic Processes that Govern 
Thermal Transport

    11 Jul 2016 | | Contributor(s):: Austin Minnich

    n this talk, I will describe our efforts to uncover the microscopic processes that govern thermal transport by phonons. In particular, I will describe how our advances in computation and experiment have enabled the first direct measurements of thermal phonon transmission coefficients at solid...

  15. Bibek Bhandari

    http://nanohub.org/members/153360

  16. Ashwin Hariharan

    Hey there. I'm a masters student pursing my interest in the field of thermal engineering. I want to do my masters thesis in emitter designing for thermophotovoltaic devices. I hope to be able...

    http://nanohub.org/members/152627

  17. Practice Your Scales!
 Thermal and Energy Nanomaterials for Fast Processes

    06 Aug 2016 | | Contributor(s):: Timothy S Fisher

  18. E304 L7.2.2: Nanoscale Heat Transfer - Application: Thermoelectric Generators

    15 Apr 2016 | | Contributor(s):: Mehmet Cevdet Ozturk

  19. Thermal Conductivity of III-V Semiconductor Superlattices

    04 Dec 2015 | | Contributor(s):: Song Mei, Zlatan Aksamija, Irena Knezevic

    IWCE 2015 presentation.  An InGaAs/InAlAs superlattice (SL) on an InP substrate is the mainstream material system for mid- IR quantum cascade lasers (QCL). The thermal conductivity tensor of SLs is critical for energy-efficient performance of QCLs; understanding the relative importance of...

  20. Sandip Mazumder

    Sandip Mazumder received his Ph.D. in Mechanical Engineering from Penn State University. After graduation, he joined CFD Research Corporation, where he was one of the architects and early...

    http://nanohub.org/members/137944