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PODCAST
[Audio] ECE 656: Electronic Transport in Semiconductors (Fall 2011)
by Mark Lundstrom
This course is about how charge flows in semiconductors with an emphasis on transport in nanoscale devices. The objective is to develop a broad understanding of basic concepts. The course is designed for those who work on electronic materials and devices – whether they are...
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ECE 656 Lecture 33: Heterostructures
Outline:Review of L31Carrier temperature and heat fluxHeterostructuresSummary
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ECE 656 Lecture 34a: Monte Carlo Simulation I
OutlineIntroductionReview of carrier scatteringSimulating carrier trajectoriesFree flightCollisionUpdate after collisionPutting it all togetherSummary
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ECE 656 Lecture 34b: Monte Carlo Simulation II
OutlineIntroductionReview of carrier scatteringSimulating carrier trajectoriesFree flightCollisionUpdate after collisionPutting it all togetherSummary
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ECE 656 Lecture 39: Ballistic Transport in Devices I
Outline:Transport across a barrierTransport across a thin baseHigh-field collectorsQuestions?
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ECE 656 Lecture 36: High-field Transport
Outline:Brief IntroductionCurrent EquationQualitative features of high field transportSaturated velocityElectron temperature modelSurvey of resultsQuick Summary
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ECE 656 Lecture 31: Balance Equation Approach II
Outline:Review of L30Energy balance equationEnergy flux balance equationTerminating the hierarchySummary
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ECE 656 Lecture 35: Introduction to Quantum Transport in Devices
Outline:IntroductionSemiclassical ballistic transportQuantum ballistic transportCarrier scattering in quantum transportDiscussionSummary
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ECE 656 Lecture 32: Balance Equation Approach III
Outline:Review of L31Carrier temperature and heat fluxHeterostructuresSummary
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ECE 656 Lecture 29: The BTE Revisited - Equilibrium and Ballistic
Outline:Quick reviewEquilibrium BTEBallistic BTEDiscussionSummary
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ECE 656 Lecture 23: Ionized Impurity Scattering II
Outline:ReviewConwell-Weisskopf approachII MobilityDiscussionSummary / Questions
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ECE 656 Lecture 27: Scattering in 1D, 2D and 3D
Outline:Review of ADP Scattering in 3DADP Scattering in 2D: MCAADP Scattering in 2D: FGRADP Scattering in 1D: FGRMobility in 1D, 2D, and 3D
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ECE 656 Lecture 26: Phonon Scattering III
Outline:ReviewExamplePOP and IV scatteringScattering in common semiconductorsElectron-electron scatteringSummary
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ECE 656 Lecture 25: Phonon Scattering II
Outline:Reviewphononselectron-phonon couplingEnergy-momentum conservationMathematical formulationExampleSummary
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ECE 656 Lecture 21: Scattering and Fermi’s Golden Rule
Outline:Fermi’s Golden RuleExample: static potentialExample: oscillating potentialDiscussionSummary
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ECE 656 Lecture 22: Ionized Impurity Scattering I
Outline:ReviewScreeningBrooks-Herring approachConwell-Weisskopf approachDiscussionSummary/Questions
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ECE 656 Lecture 17: Near-Equilibrium Measurements I
Outline:IntroductionResistivity / conductivity measurementsHall effect measurementsThe van der Pauw methodSummary
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ECE 656 Lecture 18: Near-Equilibrium Measurements II
Outline:ReviewThe van der Pauw methodTemperature-dependent measurementsErrors in Hall effect measurementsGraphene: a case studySummary
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ECE 656 Lecture 19: Scattering I - Collision Integral
Outline:ReviewCollision operatorElectron-electron scatteringDiscussionSummary
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ECE 656 Lecture 20: Scattering II - Relaxation time approximation
Outline:Justification of the RTADiscussionHW prob. 17
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ECE 656 Lecture 16: The BTE - with B-Fields
Outline:ReviewB-fieldsHall effectLarge B-fieldsSummary
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ECE 656 Lecture 15: The BTE - Transport Coefficients
Outline:IntroductionConductivityDrift currentDiffusion currentDiscussionSummary
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ECE 656 Lecture 14: The Boltzmann Transport Equation
Outline:IntroductionEquation of motionThe BTESolving the s.s. BTEDiscussionSummary
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ECE 656 Lecture 13: Phonon Transport
Outline:IntroductionElectrons and PhononsGeneral model for heat conductionThermal conductivityDebye modelScatteringDiscussionSummary
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ECE 656 Lecture 8: More about Resistance
Outline:ReviewDiscussionpower dissipationvoltage dropn-type vs. p-type“apparent” mobility1D and 3D resistorsGraphene: A case studySummary
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ECE 656 Lecture 12: Scattering and Transmission
Outline:IntroductionPhysics of carrier scatteringTransmission and mfpMFP and scatteringDiscussionSummary
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ECE 656 Lecture 10: Thermoelectric Effects - (Electronic) Heat Flow
Outline:IntroductionHeat transport by current flowMathematical formulationDiscussionSummary
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ECE 656 Lecture 11: Coupled Current Equations and Thermoelectric Devices
Outline:IntroductionCoupled flow equationsThermoelectric devicesDiscussionSummary
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ECE 656 Lecture 9: Thermoelectric Effects - Charge Flow
Outline:IntroductionCharge transport in a temperature gradientMathematical formulationDiscussionSummary
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ECE 656 Lecture 5: Modes and Transmission
Outline:ModesTransmissionDiscussionSummary
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ECE 656 Lecture 7: Resistance - Ballistic to Diffusive
Outline:Review2D ballistic resistors2D diffusive resistorsDiscussionSummary
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ECE 656 Lecture 4: General Model for Transport
Outline:The modelNear-equilibrium transportDiscussionSummary
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ECE 656 Lecture 3: Density of States
Outline:Density of statesExample: grapheneDiscussionSummary
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ECE 656 Lecture 2: Sums in k-Space/Integrals in Energy Space
Outline:Density of states in k-spaceExampleWorking in energy spaceDiscussionSummary
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ABOUT THIS SHOW
This course is about how charge flows in semiconductors with an emphasis on transport in nanoscale devices. The objective is to develop a broad understanding of basic concepts. The course is designed for those who work on electronic materials and devices – whether they are...
HOSTED BY
Mark Lundstrom
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