
Solar Cells Lecture 5: Organic Photovoltaics
29 Aug 2011   Contributor(s):: Muhammad A. Alam
Organic solar cells make use of lowcost organic polymers forphotovoltaics. Although these solar cells may appear to be quitedifferent from solar cells made with conventional, inorganicsemiconductors (e.g. they make use of exciton generation rather than electronhole generation) this...

Spin Transport and Topological Insulators I
29 Aug 2011   Contributor(s):: Supriyo Datta
A major development of the last two decades, the physical and conceptual integration of what used to be two distinct unrelated fields, namely spintronics and magnetics.

Spin Transport and Topological Insulators II
19 Aug 2011   Contributor(s):: Supriyo Datta
A major development of the last two decades, the physical and conceptual integration of what used to be two distinct unrelated fields, namely spintronics and magnetics.

Lecture 10: Case studyNearequilibrium Transport in Graphene
19 Aug 2011   Contributor(s):: Mark Lundstrom
Nearequilibrium transport in graphene as an example of how to apply the concepts in lectures 18.

Solar Cells Lecture 1: Introduction to Photovoltaics
19 Aug 2011   Contributor(s):: Mark Lundstrom
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.

Solar Cells Lecture 2: Physics of Crystalline Solar Cells
19 Aug 2011   Contributor(s):: Mark Lundstrom
Solar cell performance is determined by generation and recombination of electronhole pairs. This tutorial focussing on recombination losses in crystalline silicon solar cells under shortcircuit and opencircuit conditions.

Lecture 7: The Boltzmann Transport Equation
17 Aug 2011   Contributor(s):: Mark Lundstrom
Semiclassical 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 9: Introduction to Phonon Transport
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.

Lecture 5: Thermoelectric Effects  Mathematics
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.

Lecture 6: An Introduction to Scattering
16 Aug 2011   Contributor(s):: Mark Lundstrom
In this lecture, we show how the meanfreepath (mfp) is related to thetime between scattering events and briefly discuss how the scattering time is related to underlying physical processes.

Lecture 8: Measurements
16 Aug 2011   Contributor(s):: Mark Lundstrom
A brief introduction to commonlyused techniques, such as van der Pauw and Hall effect measurements.

Tutorial 2: Thermal Transport Across Interfaces  Electrons
16 Aug 2011   Contributor(s):: Timothy S Fisher
Outline:Thermal boundary resistanceElectronic transportReal interfaces and measurementsCarbon nanotube interfaces

Tutorial 1: Thermal Transport Across Interfaces  Phonons
15 Aug 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

Lecture 2: General Model for Transport
28 Jul 2011   Contributor(s):: Mark Lundstrom
Datta's model of a nanodevice is introduced as a general way of describing nanodevices as well, as bulk metals and semiconductors.

Lecture 3: ResistanceBallistic to Diffusive
28 Jul 2011   Contributor(s):: Mark Lundstrom
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 4: Thermoelectric EffectsPhysical Approach
28 Jul 2011   Contributor(s):: Mark Lundstrom
The effect of temperature gradients on current flow and how electrical currents produce heat currents are discussed.

Lessons from Nanoelectronics
20 Jul 2011   Contributor(s):: Supriyo Datta
Everyone is familiar with the amazing performance of a modern laptop, powered by a billionplus nanotransistors, each having an active region that is barely a few hundred atoms long. What is not as appreciated is the deeper understanding of current flow, energy exchange and device operation that...

Lessons from Nanoelectronics (Q&A)
20 Jul 2011   Contributor(s):: Supriyo Datta
Q&A session from Lessons from Nanoelectronics.

2011 NCN Summer School: Welcome and Introduction
20 Jul 2011   Contributor(s):: Mark Lundstrom

Lecture 1: Introduction to Nearequilibrium Transport
20 Jul 2011   Contributor(s):: Mark Lundstrom
A short overview of the topics to be discussed in the following nine lectures in this short course on nearequilibrium transport.