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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.

Online Presentations (1-20 of 47) feed

  1. nanoHUB-U FoN M5.1: Second Law, Energy, Information - Second Law

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    16 Apr 2012 | Online Presentations

    http://nanohub.org/resources/13618

  2. nanoHUB-U FoN M5.2: Second Law, Energy, Information - Entropy

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    16 Apr 2012 | Online Presentations

    http://nanohub.org/resources/13619

  3. nanoHUB-U FoN M5.3: Second Law, Energy, Information - Law of Equilibrium

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    16 Apr 2012 | Online Presentations | Contributor(s): Supriyo Datta

    http://nanohub.org/resources/13620

  4. nanoHUB-U FoN T5.4: Electricity from Heat - Stefan-Boltzmann Law for Phonons

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    22 Feb 2012 | Online Presentations | Contributor(s): Supriyo Datta

    http://nanohub.org/resources/12944

  5. nanoHUB-U FoN T5.1: Electricity from Heat - One-Level Device

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    20 Feb 2012 | Online Presentations | Contributor(s): Supriyo Datta

    http://nanohub.org/resources/12894

  6. nanoHUB-U FoN T5.2: Electricity from Heat - Non-degenerate Conductors

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    20 Feb 2012 | Online Presentations | Contributor(s): Supriyo Datta

    http://nanohub.org/resources/12897

  7. nanoHUB-U FoN T5.3: Electricity from Heat - Modes (Electrons vs. Phonons)

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    20 Feb 2012 | Online Presentations | Contributor(s): Supriyo Datta

    http://nanohub.org/resources/12900

  8. nanoHUB-U FoN M5.1: Electricity from Heat - Current Driven by Temperature

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    20 Feb 2012 | Online Presentations | Contributor(s): Supriyo Datta

    http://nanohub.org/resources/13021

  9. nanoHUB-U FoN M5.2: Electricity from Heat - Seebeck Coefficient

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    20 Feb 2012 | Online Presentations | Contributor(s): Supriyo Datta

    http://nanohub.org/resources/13022

  10. nanoHUB-U FoN M5.3: Electricity from Heat - Heat Current

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    20 Feb 2012 | Online Presentations | Contributor(s): Supriyo Datta

    http://nanohub.org/resources/13033

  11. nanoHUB-U FoN M5.4: Electricity from Heat - One-Level Device

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    20 Feb 2012 | Online Presentations | Contributor(s): Supriyo Datta

    http://nanohub.org/resources/13044

  12. nanoHUB-U FoN M5.5: Electricity from Heat - Heat Current Due to Phonons

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    20 Feb 2012 | Online Presentations | Contributor(s): Supriyo Datta

    http://nanohub.org/resources/13045

  13. nanoHUB-U FoN M5.6: Electricity from Heat - The Bottum-Up View

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    20 Feb 2012 | Online Presentations | Contributor(s): Supriyo Datta

    http://nanohub.org/resources/13046

  14. Lecture 9: Introduction to Phonon Transport

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    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.

    http://nanohub.org/resources/11869

  15. Lecture 5: Thermoelectric Effects - Mathematics

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    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 (or …

    http://nanohub.org/resources/11851

  16. Tutorial 2: Thermal Transport Across Interfaces - Electrons

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    16 Aug 2011 | Online Presentations | Contributor(s): Timothy S Fisher

    Outline: Thermal boundary resistance Electronic transport Real interfaces and measurements Carbon nanotube interfaces “Electronics from the Bottom Up” is an educational initiative …

    http://nanohub.org/resources/11840

  17. Tutorial 1: Thermal Transport Across Interfaces - Phonons

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    15 Aug 2011 | Online Presentations | Contributor(s): Timothy S Fisher

    Outline: Lattice vibrations and phonons The vibrating string Interfaces between dissimilar strings: acoustic mismatch Discrete masses and the vibrational eigenspectrum General thermal …

    http://nanohub.org/resources/11801

  18. Lecture 4: Thermoelectric Effects-Physical Approach

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    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.

    http://nanohub.org/resources/11747

  19. Tutorial 2: A Bottom-Up View of Heat Transfer in Nanomaterials

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    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 …

    http://nanohub.org/resources/11029

  20. Thermal Transport in Nanostructured Materials: Working to Improve Efficiency in the Field of Thermoelectrics

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    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 can …

    http://nanohub.org/resources/9213

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