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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.
Thermoelectric Power Factor Calculator for Nanocrystalline Composites
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21 Oct 2008 | Tools | Contributor(s): Terence Musho, Greg Walker
Quantum Simulation of the Seebeck Coefficient and Electrical Conductivity in a 2D Nanocrystalline Composite Structure using Non-Equilibrium Green's Functions
Quantum and Thermal Effects in Nanoscale Devices
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18 Sep 2008 | Online Presentations | Contributor(s): Dragica Vasileska
To investigate lattice heating within a Monte Carlo device simulation framework, we simultaneously solve the Boltzmann transport equation for the electrons, the 2D Poisson equation to get the...
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10 Jul 2008 | Tools | Contributor(s): Feifei Lian, Feifei Lian, Feifei Lian
This tool performs a self-consistent simulation of the current-voltage curve of a metallic single-wall carbon nanotube with Joule heating.
BNC Annual Research Review: An Introduction to PRISM and MEMS Simulation
04 Jun 2008 | Online Presentations | Contributor(s): Jayathi Murthy
This presentation is part of a collection of presentations describing the projects, people, and capabilities enhanced by research performed in the Birck Center, and a look at plans for the...
Nanoscale Opto Thermo Electric Energy Conversion Devices
28 May 2008 | Online Presentations | Contributor(s): Ali Shakouri
We review solid-state devices that allow direct conversion of heat into electricity. We describe fundamental and practical limits of conventional thermoelectric materials. Novel...
Heat Transfer across Solid Contacts Enhanced with Nanomaterials
11 Feb 2008 | Online Presentations | Contributor(s): Timothy S Fisher
This presentation will describe thermal transport processes at solid-solid material interfaces. An overview of applications in the electronics industry will serve to motivate the subject, and then...
An Experimentalists’ Perspective
19 Dec 2007 | Online Presentations | Contributor(s): Arunava Majumdar
This presentation was one of 13 presentations in the one-day forum,
"Excellence in Computer Simulation," which brought together a broad
set of experts to reflect on the future of...
Microscale Ionic Wind for Local Cooling Enhancement
26 Oct 2007 | Online Presentations | Contributor(s): David B Go
As the electronics industry continues to develop small, highly
functional, mobile devices, new methods of cooling are required to
manage the thermal requirements of the not only the chip but...
MCW07 Simple Models for Molecular Transport Junctions
13 Sep 2007 | Online Presentations | Contributor(s): Misha Galperin, Abraham Nitzan, Mark A. Ratner
We review our recent research on role of interactions in molecular transport junctions. We consider simple models within nonequilibrium Green function approach (NEGF) in steady-state regime.
Electron Emission from Nanoscale Carbon Materials
15 May 2007 | Online Presentations | Contributor(s): Timothy S Fisher
Prior studies on electron emission show possibly beneficial effects of
nanoscale phenomena on energy-conversion characteristics. For example,
recent work has shown that the electric field...
Atomistic Green\'s Function Method 1-D Atomic Chain Simulation
02 May 2007 | Tools | Contributor(s): Zhen Huang, Wei Zhang, Timothy S Fisher, Sridhar Sadasivam
Calculation of Thermal Conductance of an Atomic Chain
BNC Annual Research Symposium: Nanoscale Energy Conversion
23 Apr 2007 | Online Presentations | Contributor(s): Timothy S Fisher
CMOS-Nano Hybrid Technology: a nanoFPGA-related study
04 Apr 2007 | Online Presentations | Contributor(s): Wei Wang
Dr. Wei Wang received his PhD degree in 2002 from Concordia University, Montreal, QC, Canada, in Electrical and Computer Engineering. From 2002 to 2004, he was an assistant professor in the...
Highly Efficient Thermal Transport: The Application of Carbon Nanotube Array Interfaces
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01 Feb 2007 | Online Presentations | Contributor(s): Baratunde A. Cola
Carbon nanotubes (CNTs) have received much attention in recent years for their extraordinary properties that through careful engineering may be leverage for the development of numerous...
Understanding Phonon Dynamics via 1D Atomic Chains
28 Aug 2006 | Online Presentations | Contributor(s): Timothy S Fisher
Phonons are the principal carriers of thermal energy in semiconductors and insulators, and they serve a vital role in dissipating heat produced by scattered electrons in semiconductor devices....
Nanotubes and Nanowires: One-dimensional Materials
17 Jul 2006 | Online Presentations | Contributor(s): Timothy D. Sands
What is a nanowire? What is a nanotube? Why are they interesting and what are their potential applications? How are they made? This presentation is intended to begin to answer these questions...
Molecular Transport Structures: Elastic Scattering, Vibronic Effects and Beyond
13 Feb 2006 | Online Presentations | Contributor(s): Mark A. Ratner, Abraham Nitzan, Misha Galperin
Current experimental efforts are clarifying quite beautifully the nature of charge transport in so-called molecular junctions, in which a single molecule provides the channel for current flow...
A Gentle Introduction to Nanotechnology and Nanoscience
13 Feb 2006 | Online Presentations | Contributor(s): Mark A. Ratner
While the Greek root nano just means dwarf, the nanoscale has become a giant focus of contemporary science and technology. We will examine the fundamental issues underlying the excitement...
Nano-Scale Device Simulations Using PROPHET-Lab Exercise 2
08 Feb 2006 | Teaching Materials | Contributor(s): Yang Liu
Companion exercises for "Nano-Scale Device Simulations Using PROPHET".
Nano-Scale Device Simulations Using PROPHET-Lab Exercise 1