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.

Resources (61-72 of 72)

  1. Understanding Phonon Dynamics via 1D Atomic Chains

    Online Presentations | 04 Apr 2006 | 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. Despite the importance of phonons, rigorous understanding and inclusion of phonon dynamics in...

  2. Nanotubes and Nanowires: One-dimensional Materials

    Online Presentations | 17 Jul 2006 | 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 while introducing some fundamental concepts such as wave-particle duality, quantum confinement, the...

  3. Molecular Transport Structures: Elastic Scattering, Vibronic Effects and Beyond

    Online Presentations | 13 Feb 2006 | Contributor(s):: Mark 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 between two electrodes. The theoretical modeling of such structures is challenging, because of the...

  4. A Gentle Introduction to Nanotechnology and Nanoscience

    Online Presentations | 13 Feb 2006 | Contributor(s):: Mark 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 involved in nanoscale research - what, why and how. Specific topics include assembly, properties,...

  5. Nano-Scale Device Simulations Using PROPHET-Lab Exercise 2

    Teaching Materials | 08 Feb 2006 | Contributor(s):: Yang Liu

    Companion exercises for "Nano-Scale Device Simulations Using PROPHET".

  6. Nano-Scale Device Simulations Using PROPHET-Lab Exercise 1

    Teaching Materials | 08 Feb 2006 | Contributor(s):: Yang Liu

    Companion exercises for "Nano-Scale Device Simulations Using PROPHET".

  7. Nano-Scale Device Simulations Using PROPHET-Part II: PDE Systems

    Online Presentations | 20 Jan 2006 | Contributor(s):: Yang Liu, Robert Dutton

    Part II uses examples toillustrate how to build user-defined PDE systems in PROPHET.

  8. Nano-Scale Device Simulations Using PROPHET-Part I: Basics

    Online Presentations | 20 Jan 2006 | Contributor(s):: Yang Liu, Robert Dutton

    Part I covers the basics of PROPHET,including the set-up of simulation structures and parameters based onpre-defined PDE systems.

  9. Nano-Scale Device Simulations Using PROPHET

    Series | 20 Jan 2006 | Contributor(s):: Yang Liu, Robert Dutton

    These two lectures are aimed to give a practical guide to the use of a general device simulator (PROPHET) available on nanoHUB. PROPHET is a partial differential equation (PDE) solver that offers users the flexibility of integrating new models and equations for their nano-device simulations. The...

  10. Quantum Chemistry Part II

    Online Presentations | 08 Jul 2004 | Contributor(s):: George C. Schatz

    This tutorial will provide an overview of electronic structure calculations from achemist's perspective. This will include a review of the basic electronic structuretheories.

  11. Modeling and Simulation of Sub-Micron Thermal Transport

    Online Presentations | 26 Sep 2005 | Contributor(s):: Jayathi Murthy

    In recent years, there has been increasing interest in understanding thermal phenomena at the sub-micron scale. Applications include the thermal performance of microelectronic devices, thermo-electric energy conversion, ultra-fast laser machining and many others. It is now accepted that Fourier's...

  12. Quantum Chemistry Part I

    Online Presentations | 08 Jul 2004 | Contributor(s):: Mark Ratner

    This tutorial will provide an overview of electronic structure calculations from achemist's perspective. This will include a review of the basic electronic structuretheories.