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ECE 656 Lecture 26: Mobility in 3D, 2D, and 1D
13 Nov 2009 | | Contributor(s):: Mark Lundstrom
The goal in this lecture is to examine one scattering mechanism (ADP scattering) in 3D, 2D, and 1D to see how the scattering rate changes with dimensionality. Then we’ll compare mobilities in 3D, 2D, and 1D.Outline:Review of ADP Scattering in 3DADP Scattering in 2D: MCAADP Scattering in 2D:...
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ECE 656 Lecture 25: Phonon Scattering III
13 Nov 2009 | | Contributor(s):: Mark Lundstrom
Outline:ReviewPOP and IV scatteringScattering in common semiconductorsElectron-electron scatteringSummary
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ECE 656 Lecture 24: Phonon Scattering II
13 Nov 2009 | | Contributor(s):: Mark Lundstrom
Outline:Review Energy-momentum conservationMathematical formulationExampleSummary
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ECE 656 Lecture 23: Phonon Scattering I
10 Nov 2009 | | Contributor(s):: Mark Lundstrom
Outline:About phononsElectron-phonon couplingEnergy-momentum conservationSummary
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ECE 656 Lecture 16: Solving the BTE: Magnetic Fields
09 Nov 2009 | | Contributor(s):: Mark Lundstrom
Outline:General solutionCurrent equationCoupled current equationsExampleSummary
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ECE 656 Lecture 22: Charged Impurity Scattering
06 Nov 2009 | | Contributor(s):: Mark Lundstrom
Online:ReviewScreeningBrooks-Herring approachConwell-Weisskopf approachDiscussionSummary / Questions
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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
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ECE 656 Lecture 19: Characteristic Times
05 Nov 2009 | | Contributor(s):: Mark Lundstrom
Outline:Characteristic timesRelaxation Time Approximation and τr
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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
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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
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ECE 656 Exam 1 (Fall 2009)
08 Oct 2009 | | Contributor(s):: Mark Lundstrom
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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
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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
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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
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ECE 656 Lecture 17: BTE and Landauer
02 Oct 2009 | | Contributor(s):: Mark Lundstrom
Outline:BTE reviewTransport DistributionConnection to LandauerModesMean-free-pathSummary
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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
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ECE 656 Lecture 9: Coupled Current Equations
28 Sep 2009 | | Contributor(s):: Mark Lundstrom
Outline:Onsager relationsMeasurement considerationsThermoelectric devices
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ECE 656 Lecture 8: Thermoelectric Effects
27 Sep 2009 | | Contributor(s):: Mark Lundstrom
Outline:IntroductionOne energy level formulationDistribution of energy levelsDiscussionSummary
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ECE 656 Lecture 7: 2 and 3D Resistors
27 Sep 2009 | | Contributor(s):: Mark Lundstrom
Outline:Another view of the same problem2D resistorsDiscussion3D resistorsSummary
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ECE 656 Lecture 13: Solving the BTE: equilibrium and ballistic
22 Sep 2009 | | Contributor(s):: Mark Lundstrom
Outline:Quick reviewEquilibrium BTEBallistic BTEDiscussionSummary