Tags: Charge Transport

Online Presentations (61-80 of 85)

  1. ECE 656 Lecture 23: Phonon Scattering I

    10 Nov 2009 | | Contributor(s):: Mark Lundstrom

    Outline:About phononsElectron-phonon couplingEnergy-momentum conservationSummary

  2. ECE 656 Lecture 16: Solving the BTE: Magnetic Fields

    09 Nov 2009 | | Contributor(s):: Mark Lundstrom

    Outline:General solutionCurrent equationCoupled current equationsExampleSummary

  3. ECE 656 Lecture 22: Charged Impurity Scattering

    06 Nov 2009 | | Contributor(s):: Mark Lundstrom

    Online:ReviewScreeningBrooks-Herring approachConwell-Weisskopf approachDiscussionSummary / Questions

  4. ECE 656 Lecture 18: Strong Magnetic Fields

    05 Nov 2009 | | Contributor(s):: Mark Lundstrom

    OutlineMagnetoconductivity tensorResistivity tensorStrong B-fields: Landau levelsShubnikov-DeHaas Oscillations and QHESummary

  5. ECE 656 Lecture 19: Characteristic Times

    05 Nov 2009 | | Contributor(s):: Mark Lundstrom

    Outline:Characteristic timesRelaxation Time Approximation and τr

  6. ECE 656 Lecture 20: Transmission and Backscattering

    05 Nov 2009 | | Contributor(s):: Mark Lundstrom

    Outline:Transmission and mfpMFP and carrrier scatteringExtracting mean-free-paths from experiments

  7. ECE 656 Lecture 21: Scattering and Fermi's Golden Rule

    05 Nov 2009 | | Contributor(s):: Mark Lundstrom

    Outline:Fermi’s Golden RuleExample: static potentialExample: oscillating potentialDiscussionSummary

  8. ECE 656 Lecture 14: Solving the BTE: 1D/RTA

    07 Oct 2009 | | Contributor(s):: Mark Lundstrom

    Outline:The RTA Solving the BTE: driftSolving the BTE: diffusionEnergy-dependent scattering timeRelation to LandauerDiscussionSummary

  9. ECE 656 Lecture 11: Discussion

    07 Oct 2009 | | Contributor(s):: Mark Lundstrom

    Outline:P-type conductors and thermoelectricsZT figure of meritMaximizing the “power factor”TE parameters for non-degenerate semiconductor

  10. ECE 656 Lecture 15: Solving the BTE - General Solution for B = 0

    06 Oct 2009 | | Contributor(s):: Mark Lundstrom

    General solution 2) Current equation 3) Coupled current equations 4) The RTA 5) Summary

  11. ECE 656 Lecture 17: BTE and Landauer

    02 Oct 2009 | | Contributor(s):: Mark Lundstrom

    Outline:BTE reviewTransport DistributionConnection to LandauerModesMean-free-pathSummary

  12. ECE 656 Lecture 10: The Drift-Diffusion Equation

    30 Sep 2009 | | Contributor(s):: Mark Lundstrom

    Outline:Transport in the bulkThe DD equationIndicial notationDD equation with B-field

  13. ECE 656 Lecture 9: Coupled Current Equations

    28 Sep 2009 | | Contributor(s):: Mark Lundstrom

    Outline:Onsager relationsMeasurement considerationsThermoelectric devices

  14. ECE 656 Lecture 8: Thermoelectric Effects

    27 Sep 2009 | | Contributor(s):: Mark Lundstrom

    Outline:IntroductionOne energy level formulationDistribution of energy levelsDiscussionSummary

  15. ECE 656 Lecture 7: 2 and 3D Resistors

    27 Sep 2009 | | Contributor(s):: Mark Lundstrom

    Outline:Another view of the same problem2D resistorsDiscussion3D resistorsSummary

  16. ECE 656 Lecture 13: Solving the BTE: equilibrium and ballistic

    22 Sep 2009 | | Contributor(s):: Mark Lundstrom

    Outline:Quick reviewEquilibrium BTEBallistic BTEDiscussionSummary

  17. ECE 656 Lecture 12: Boltzmann Transport Equation

    18 Sep 2009 | | Contributor(s):: Mark Lundstrom

    Outline:IntroductionSemi-classical electron dynamics Boltzmann Transport Equation (BTE) ScatteringDiscussionSummary

  18. ECE 656 Lecture 6: Discussion

    18 Sep 2009 | | Contributor(s):: Mark Lundstrom

    OutlineQuantum confinement and effective massBulk 1D transport and mfpPeriodic vs. Box boundary conditionsThermal velocities"Ballistic mobility"

  19. ECE 656 Lecture 5: 1D Resistors

    14 Sep 2009 | | Contributor(s):: Mark Lundstrom

    Outline:Review1D ballistic resistors1D diffusive resistorsDiscussionSummary

  20. ECE 656 Lecture 4: Density of States - Density of Modes

    14 Sep 2009 | | Contributor(s):: Mark Lundstrom

    Outline:Density of states Example: graphene Density of modes Example: graphene Summary