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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.
Fundamentals of Phonon Transport Modeling L1: Introduction
04 Jan 2017 | Presentation Materials | Contributor(s): Alan McGaughey, Xiulin Ruan
Part of the 2016 IMECE Tutorial: Fundamentals of Phonon Transport Modeling: Formulation, Implementation, and Applications.
Fundamentals of Phonon Transport Modeling L2: MD Simulation, Green Kubo, Direct Method
04 Jan 2017 | Presentation Materials | Contributor(s): Xiulin Ruan, Alan McGaughey
Fundamentals of Phonon Transport Modeling L3: Harmonic Lattice Dynamics, Spectral Methods
Fundamentals of Phonon Transport Modeling L4: Anharmonic Lattice dynamics, First Principles
Fundamentals of Phonon Transport Modeling L6: Phonon-Electron Coupling and Non-equilibrium
Heat Under the Microscope:
Uncovering the Microscopic Processes that Govern
04 Oct 2016 | Online Presentations | 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...
Practice Your Scales!
Thermal and Energy Nanomaterials for Fast Processes
17 Aug 2016 | Online Presentations | Contributor(s): Timothy S Fisher
NCN Undergraduate Research Experience Program - 2016
Reproducing results of "Thermal transport in SiGe superlattice thin films and nanowires"
27 Mar 2015 | Papers | Contributor(s): Alejandro Strachan, Jonathan Mark Dunn
In this document we show how to reproduce results in the paper "Thermal transport in SiGe superlattice thin films and nanowires", Keng-hua Lin, and Alejandro Strachan Physical...
ECE 595E Lecture 18: FEM for Thermal Transport
01 Mar 2013 | Online Presentations | Contributor(s): Peter Bermel
Recap from Monday
Thermal transfer overview
Thermal Transport Across Interfaces
23 Aug 2011 | Courses | Contributor(s): Timothy S Fisher
These lectures provide a theoretical development of the transport of
thermal energy by conduction in nanomaterials, in which material
interfaces typically dominate transport. The physical nature...
Lecture 9: Introduction to Phonon Transport
17 Aug 2011 | Online Presentations | Contributor(s): Mark Lundstrom
This lecture is an introduction to phonon transport. Key similarities and differences between electron and phonon transport are discussed.
Lecture 5: Thermoelectric Effects - Mathematics
16 Aug 2011 | Online Presentations | Contributor(s): Mark Lundstrom
Beginning with the general model for transport, we mathematically derive
expressions for the four thermoelectric transport coefficients:
(i) Electrical conductivity,
(ii) Seebeck coefficient...
Tutorial 2: Thermal Transport Across Interfaces - Electrons
16 Aug 2011 | Online Presentations | Contributor(s): Timothy S Fisher
Thermal boundary resistance
Real interfaces and measurements
Carbon nanotube interfaces
“Electronics from the Bottom Up” is an educational initiative...
Tutorial 1: Thermal Transport Across Interfaces - Phonons
15 Aug 2011 | Online Presentations | Contributor(s): Timothy S Fisher
Lattice vibrations and phonons
The vibrating string
Interfaces between dissimilar strings: acoustic
Discrete masses and the vibrational eigenspectrum
Lecture 4: Thermoelectric Effects-Physical Approach
28 Jul 2011 | Online Presentations | Contributor(s): Mark Lundstrom
The effect of temperature gradients on current flow and how electrical currents produce heat currents are discussed.
2011 NCN@Purdue Summer School: Electronics from the Bottom Up
20 Jul 2011 | Workshops
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Alumni Discussion Group: LinkedIn
Additional Tutorials on Selected Topics in Nanotechnology
29 Mar 2011 | Workshops | Contributor(s): Gerhard Klimeck, Umesh V. Waghmare, Timothy S Fisher, N. S. Vidhyadhiraja
Select tutorials in nanotechnology, a part of the
2010 NCN@Purdue Summer School: Electronics from the Bottom Up.
Tutorial 2: A Bottom-Up View of Heat Transfer in Nanomaterials
23 Mar 2011 | Online Presentations | Contributor(s): Timothy S Fisher
This lecture provides a theoretical development of the transport of thermal energy by conduction in nanomaterials. The physical nature of energy transport by two carriers—electrons and...
2010 NCN@Purdue Summer School: Electronics from the Bottom Up
18 Jan 2011 | Workshops
Electronics from the Bottom Up seeks to bring a new perspective to electronic devices – one that is designed to help realize the opportunities that nanotechnology presents.
Thermal Transport in Nanostructured Materials: Working to Improve Efficiency in the Field of Thermoelectrics
08 Jul 2010 | Online Presentations | Contributor(s): Suzanne Singer
This talk discusses the performance of nanostructured thin films as a potential
material for thermoelectric energy conversion applications, as well as the
material composition variations that...