Tags: thermal transport

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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.

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  1. nanoMATERIALS nanoscale heat transport

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    Tools | 03 Nov 2010 | Contributor(s):: Keng-Hua Lin, Sean Sullivan, Mathew Joseph Cherukara, Alejandro Strachan, Tianli Feng, Xiulin Ruan, Bo Qiu

    Non-equilibrium MD simulations of heat transport in nano-materials

  2. Thermal Transport Across Interfaces

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    Courses | 19 Aug 2011 | 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 of energy transport by two carriers: electrons and phonons--will be explored.

  3. Lecture 9: Introduction to Phonon Transport

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    Online Presentations | 17 Aug 2011 | Contributor(s):: Mark Lundstrom

    This lecture is an introduction to phonon transport. Key similarities and differences between electron and phonon transport are discussed.

  4. Lecture 5: Thermoelectric Effects - Mathematics

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    Online Presentations | 16 Aug 2011 | Contributor(s):: Mark Lundstrom

    Beginning with the general model for transport, we mathematically deriveexpressions for the four thermoelectric transport coefficients:(i) Electrical conductivity,(ii) Seebeck coefficient (or "thermopower"),(iii) Peltier coefficient,(iv) Electronic heat conductivity.

  5. Tutorial 2: Thermal Transport Across Interfaces - Electrons

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

    Outline:Thermal boundary resistanceElectronic transportReal interfaces and measurementsCarbon nanotube interfaces

  6. Tutorial 1: Thermal Transport Across Interfaces - Phonons

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    Online Presentations | 30 Jul 2011 | Contributor(s):: Timothy S Fisher

    Outline:Lattice vibrations and phononsThe vibrating stringInterfaces between dissimilar strings: acousticmismatchDiscrete masses and the vibrational eigenspectrumGeneral thermal transport theory

  7. Lecture 4: Thermoelectric Effects-Physical Approach

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    Online Presentations | 28 Jul 2011 | Contributor(s):: Mark Lundstrom

    The effect of temperature gradients on current flow and how electrical currents produce heat currents are discussed.

  8. 2011 NCN@Purdue Summer School: Electronics from the Bottom Up

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    Workshops | 20 Jul 2011

    click on image for larger versionAlumni Discussion Group: LinkedIn

  9. Additional Tutorials on Selected Topics in Nanotechnology

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    Workshops | 23 Mar 2011 | 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.

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

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    Online Presentations | 23 Mar 2011 | 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 phonons--will be explored from basic principles using a common Landauer framework. Issues including the quantum...

  11. 2010 NCN@Purdue Summer School: Electronics from the Bottom Up

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    Workshops | 20 Apr 2010

    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.

  12. Jul 12 2010

    2010 NCN@Purdue Summer School: Electronics from the Bottom Up

    This year’s summer school will have two components: a focus on nanoelectronic devices, with an introduction to spintronics and, second, tutorials on selected topics in nanotechnology. First, we use...

    https://nanohub.org/events/details/270

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

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    Online Presentations | 19 Jun 2010 | Contributor(s):: Suzanne Singer

    This talk discusses the performance of nanostructured thin films as a potentialmaterial for thermoelectric energy conversion applications, as well as thematerial composition variations that can provide guidelines for finding lowvalues of thermal conductivity.

  14. Research Within Vasileska Group

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    Presentation Materials | 28 Jun 2010 | Contributor(s):: Dragica Vasileska

    This presentation outlines recent progress in reseach within Vasileska group in the area of random telegraph noise and thermal modeling, and modeling of GaN HEMTs.

  15. Molecular Sensors for MEMS

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    Online Presentations | 09 Dec 2009 | Contributor(s):: John P. Sullivan

    This seminar will cover the issues involved in using molecular sensors in MEMS and their application to microchannels, supersonic micronozzles, microjet impingement, microturbines and unsteady fluidic actuators.

  16. MIT Tools for Energy Conversion and Storage

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    Tools | 13 Sep 2009 | Contributor(s):: Jeffrey C Grossman, Joo-Hyoung Lee, Varadharajan Srinivasan, Alexander S McLeod, Lucas Wagner

    Atomic-Scale Simulation Tools to Explore Energy Conversion and Storage Materials

  17. Illinois ME 498 Introduction of Nano Science and Technology, Lecture 10: Thermal and Electric Conduction in Nanostructures

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    Online Presentations | 05 Oct 2009 | Contributor(s):: Nick Fang, Omar N Sobh

    Thermal and Electric Conduction in Nanostructures Topics: Back to Constitutive Equations Coupled Heat and Electron Conduction Thermoelectric Cooling Principle of Thermoelectric Effect Comparison of Different Materials Challenges in Efficiency Nanoscale Thermoelectricity

  18. Metal Oxide Nanowires as Gas Sensing Elements: from Basic Research to Real World Applications

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    Online Presentations | 21 Sep 2009 | Contributor(s):: andrei kolmakov

    Quasi 1-D metal oxide single crystal chemiresistors are close to occupy their specific niche in the real world of solid state sensorics. Potentially, the major advantage of this kind of sensors with respect to available granular thin film sensors will be their size and stable, reproducible and...

  19. Illinois ECE 598EP Lecture 3.1 - Hot Chips: Electrons and Phonons

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    Online Presentations | 17 Feb 2009 | Contributor(s):: Eric Pop, Omar N Sobh

    Electrons and Phonons

  20. Illinois ECE 598EP Lecture 1 - Hot Chips: Atoms to Heat Sinks

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    Online Presentations | 29 Jan 2009 | Contributor(s):: Eric Pop

    IntroductionContent: The Big Picture Another CPU without a Heat Sink Thermal Management Methods Impact on People and Environment Packaging cost IBM S/390 refrigeration and processor packaging Intel Itanium and Pentium 4packaging Graphics Cards Under/Overclocking Environment A More Detailed Look...