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ECE 656 Lecture 14: The Boltzmann Transport Equation

14 Oct 2011 | Online Presentations | Contributor(s): Mark Lundstrom

Outline:IntroductionEquation of motionThe BTESolving the s.s. BTEDiscussionSummary

ECE 656 Lecture 13: Phonon Transport

05 Oct 2011 | Online Presentations | Contributor(s): Mark Lundstrom

Outline:IntroductionElectrons and PhononsGeneral model for heat conductionThermal conductivityDebye modelScatteringDiscussionSummary

ECE 656 Lecture 12: Scattering and Transmission

30 Sep 2011 | Online Presentations | Contributor(s): Mark Lundstrom

Outline:IntroductionPhysics of carrier scatteringTransmission and mfpMFP and scatteringDiscussionSummary

ECE 656 Lecture 11: Coupled Current Equations and Thermoelectric Devices

23 Sep 2011 | Online Presentations | Contributor(s): Mark Lundstrom

Outline:IntroductionCoupled flow equationsThermoelectric devicesDiscussionSummary

ECE 656 Lecture 10: Thermoelectric Effects - (Electronic) Heat Flow

26 Sep 2011 | Online Presentations | Contributor(s): Mark Lundstrom

Outline:IntroductionHeat transport by current flowMathematical formulationDiscussionSummary

ECE 656 Lecture 9: Thermoelectric Effects - Charge Flow

Outline:IntroductionCharge transport in a temperature gradientMathematical formulationDiscussionSummary

ECE 656 Lecture 8: More about Resistance

03 Oct 2011 | Online Presentations | Contributor(s): Mark Lundstrom

Outline:ReviewDiscussionpower dissipationvoltage dropn-type vs. p-type“apparent” mobility1D and 3D resistorsGraphene: A case studySummary

ECE 656 Lecture 7: Resistance - Ballistic to Diffusive

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

Outline:Review2D ballistic resistors2D diffusive resistorsDiscussionSummary

ECE 656 Lecture 6: Near-Equilibrium Transport in the Bulk

20 Sep 2011 | Online Presentations | Contributor(s): Mark Lundstrom

ECE 656 Lecture 5: Modes and Transmission

Outline:ModesTransmissionDiscussionSummary

ECE 656 Lecture 4: General Model for Transport

07 Sep 2011 | Online Presentations | Contributor(s): Mark Lundstrom

Outline:The modelNear-equilibrium transportDiscussionSummary

ECE 656 Lecture 3: Density of States

Outline:Density of statesExample: grapheneDiscussionSummary

ECE 656 Lecture 2: Sums in k-Space/Integrals in Energy Space

Outline:Density of states in k-spaceExampleWorking in energy spaceDiscussionSummary

ECE 656 Lecture 1: Introduction to Carrier Transport

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

Solar Cells Lecture 2: Physics of Crystalline Solar Cells

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

Solar cell performance is determined by generation and recombination of electron-hole pairs. This tutorial focussing on recombination losses in crystalline silicon solar cells under short-circuit and open-circuit conditions.

Solar Cells Lecture 1: Introduction to Photovoltaics

An introduction to solar cells covering the basics of PN junctions, optical absorption, and IV characteristics. Key technology options and economic considers are briefly presented.

Lecture 10: Case study-Near-equilibrium Transport in Graphene

Near-equilibrium transport in graphene as an example of how to apply the concepts in lectures 1-8.

Lecture 9: Introduction to Phonon Transport

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.

Lecture 8: Measurements

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

A brief introduction to commonly-used techniques, such as van der Pauw and Hall effect measurements.

Lecture 7: The Boltzmann Transport Equation

Semi-classical carrier transport is traditionally described by the Boltzmann Transport Equation (BTE). In this lecture, we present theBTE, show how it is solved, and relate it to the Landauer Approach usedin these lectures

Lecture 6: An Introduction to Scattering

In this lecture, we show how the mean-free-path (mfp) is related to thetime between scattering events and briefly discuss how the scattering time is related to underlying physical processes.

Lecture 5: Thermoelectric Effects - Mathematics

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.

Lecture 4: Thermoelectric Effects-Physical Approach

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.

Lecture 3: Resistance-Ballistic to Diffusive

The resistance of a ballistic conductor and concepts, such as the quantumcontact resistance, are introduced and discussed. The results are then generalized to treat transport all the way from the ballistic to diffusive regimes.

Lecture 2: General Model for Transport

Datta's model of a nanodevice is introduced as a general way of describing nanodevices as well, as bulk metals and semiconductors.