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ECE 656 Lecture 4: Density of States - Density of Modes
Online Presentations | 14 Sep 2009 | Contributor(s):: Mark Lundstrom
Outline:Density of states Example: graphene Density of modes Example: graphene Summary
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ME 597 Lecture 1: Introduction to Basic Quantum Mechanics
Online Presentations | 01 Sep 2009 | Contributor(s):: Ron Reifenberger
Note: This lecture has been revised since its original presentation.Topics:Introduction to Basic Quantum MechanicsEnergy States in Periodic Crystals
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ECE 656 Lecture 2: Sums in k-space/Integrals in Energy Space
Online Presentations | 01 Sep 2009 | Contributor(s):: Mark Lundstrom
Outline:Density of states in k-space Example Working in energy space Discussion Summary
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ECE 656 Lecture 1: Bandstructure Review
Online Presentations | 26 Aug 2009 | Contributor(s):: Mark Lundstrom
Outline:Bandstructure in bulk semiconductorsQuantum confinementSummary
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ECE 606 Lecture 10: Additional Information
Online Presentations | 16 Feb 2009 | Contributor(s):: Muhammad A. Alam
Outline:Potential, field, and chargeE-k diagram vs. band-diagramBasic concepts of donors and acceptorsConclusion
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ECE 606 Lecture 13a: Fermi Level Differences for Metals and Semiconductors
Online Presentations | 16 Feb 2009 | Contributor(s):: Muhammad A. Alam
Short chalkboard lecture on Fermi level and band diagram differences for metals and semiconductors.
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ECE 606 Lecture 5: Energy Bands
Online Presentations | 04 Feb 2009 | Contributor(s):: Muhammad A. Alam
Outline:Schrodinger equation in periodic U(x)Bloch theoremBand structureProperties of electronic bandsConclusions
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ECE 495N Lecture 21: Graphene Bandstructures
Online Presentations | 03 Nov 2008 | Contributor(s):: Supriyo Datta
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ECE 495N Lecture 19: Bandstructures II
Online Presentations | 03 Nov 2008 | Contributor(s):: Supriyo Datta
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ECE 495N Lecture 18: Bandstructures I
Online Presentations | 03 Nov 2008 | Contributor(s):: Supriyo Datta
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ECE 495N Lecture 20: Bandstructures III
Online Presentations | 27 Oct 2008 | Contributor(s):: Supriyo Datta
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The Novel Nanostructures of Carbon
Online Presentations | 28 Feb 2008 | Contributor(s):: Gene Dresselhaus
A brief review will be given of the physical underpinnings of carbon nanostructures that were developed over the past 60 years, starting with the electronic structure and physical properties of graphene and graphite, and then moving to graphite intercalation compounds which contained the first...
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Engineering at the nanometer scale: Is it a new material or a new device?
Online Presentations | 06 Nov 2007 | Contributor(s):: Gerhard Klimeck
This seminar will overview NEMO 3D simulation capabilities and its deployment on the nanoHUB as well as an overview of the nanoHUB impact on the community.
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MCW07 Impact of Porphyrin Functional Groups on InAs Gas Sensors
Online Presentations | 05 Nov 2007 | Contributor(s):: Michael Garcia
Porphyrin molecules are often used for sensor engineering to improve sensitivity and selectivity to specific analytes. It is important to understand how the porphyrin HOMO-LUMO levels deplete surface states during functionalization of solid state sensors. Additionally, the effect of...
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MCW07 Electronic Level Alignment at Metal-Molecule Contacts with a GW Approach
Online Presentations | 05 Sep 2007 | Contributor(s):: Jeffrey B. Neaton
Most recent theoretical studies of electron transport in single-molecule junctions rely on a Landauer approach, simplified to treat electron-electron interactions at a mean-field level within density functional theory (DFT). While this framework has proven relatively accurate for certain systems,...
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A Tutorial for Nanoelectronics Simulation Tools
Online Presentations | 03 Jul 2007 | Contributor(s):: James K Fodor, Jing Guo
This learning module introduces nanoHUB users to some of the available simulators. The simulators discussed are FETToy, nanoMOS, Schred, CNTbands, and QDot Lab. For each simulator, a brief introduction to the simulator is presented, followed by voiced presentations featuring the simulator in...
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Introduction to CNTbands
Online Presentations | 28 Jun 2007 | Contributor(s):: James K Fodor, Jing Guo
This learning module introduces nanoHUB users to the CNTbands simulator. A brief introduction to CNTbands is presented, followed by voiced presentations featuring the simulator in action. Upon completion of this module, users should be able to use this simulator to gain valuable insight into...
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Atomistic Alloy Disorder in Nanostructures
Online Presentations | 26 Feb 2007 | Contributor(s):: Gerhard Klimeck
Electronic structure and quantum transport simulations are typically performed in perfectly ordered semiconductor structures. Bands and modes are defined resulting in quantized conduction and discrete states. But what if the material is fundamentally disordered? What if the disorder is at the...
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Energy Bands In Periodic Potentials
Online Presentations | 11 Jan 2007 | Contributor(s):: Heng Li
It is the Kronig-Penny Model.The particle in one-dimensional lattice is a problem that occurs in the model of periodic crystal lattice.The potential is caused by periodic arrangement of ions in the crystal structure. The graph presents the real part of transmission matrix element P11 plotted...
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Surprises on the nanoscale: Plasmonic waves that travel backward and spin birefringence without magnetic fields
Online Presentations | 08 Jan 2007 | Contributor(s):: Daniel Neuhauser
As nanonphotonics and nanoelectronics are pushed down towards the molecular scale, interesting effects emerge. We discuss how birefringence (different propagation of two polarizations) is manifested and could be useful in the future for two systems: coherent plasmonic transport of near-field...