Tags: band structure

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Description

In solid-state physics, the electronic band structure of a solid describes ranges of energy that an electron is "forbidden" or "allowed" to have. It is a function of the diffraction of the quantum mechanical electron waves in the periodic crystal lattice with a specific crystal system and Bravais lattice. The band structure of a material determines several characteristics, in particular its electronic and optical properties. More information on Band structure can be found here.

Resources (81-100 of 151)

  1. nanoMATERIALS SeqQuest DFT

    Tools | 04 Feb 2008 | Contributor(s):: Ravi Pramod Kumar Vedula, Greg Bechtol, Benjamin P Haley, Alejandro Strachan

    DFT calculations of materials

  2. Illinois ECE 440: Diffusion and Energy Band Diagram Homework

    Teaching Materials | 27 Jan 2010 | Contributor(s):: Mohamed Mohamed

    This homework covers Diffusion of Carriers, Built-in Fields and Metal semiconductor junctions.

  3. Nanoelectronic Modeling: Exercises 1-3 - Barrier Structures, RTDs, and Quantum Dots

    Online Presentations | 27 Jan 2010 | Contributor(s):: Gerhard Klimeck

    Exercises:Barrier StructuresUses: Piece-Wise Constant Potential Barrier ToolResonant Tunneling DiodesUses: Resonant Tunneling Diode Simulation with NEGF • Hartree calculation • Thomas Fermi potentialQuantum DotsUses: Quantum Dot Lab • pyramidal dot

  4. Nanoelectronic Modeling Lecture 14: Open 1D Systems - Formation of Bandstructure

    Online Presentations | 25 Jan 2010 | Contributor(s):: Gerhard Klimeck, Dragica Vasileska

    The infinite periodic structure Kroenig Penney model is often used to introduce students to the concept of bandstructure formation. It is analytically solvable for linear potentials and shows critical elements of bandstructure formation such as core bands and different effective masses in...

  5. Nanoelectronic Modeling Lecture 12: Open 1D Systems - Transmission through Double Barrier Structures - Resonant Tunneling

    Online Presentations | 25 Jan 2010 | Contributor(s):: Gerhard Klimeck, Dragica Vasileska

    This presentation shows that double barrier structures can show unity transmission for energies BELOW the barrier height, resulting in resonant tunneling. The resonance can be associated with a quasi bound state, and the bound state can be related to a simple particle in a box calculation.

  6. Nanoelectronic Modeling Lecture 08: Introduction to Bandstructure Engineering II

    Online Presentations | 30 Dec 2009 | Contributor(s):: Gerhard Klimeck

    This presentation provides a brief overview of the concepts of bandstructure engineering and its potential applications to light detectors, light emitters, and electron transport devices. Critical questions of the origin of bandstructure and its dependence on local atom arrangements are raised to...

  7. Nanoelectronic Modeling Lecture 07: Introduction to Bandstructure Engineering I

    Online Presentations | 30 Dec 2009 | Contributor(s):: Gerhard Klimeck

    This presentation serves as a reminder about basic quantum mechanical principles without any real math. The presentation reviews critical properties of classical systems that can be described as particles, propagating waves, standing waves, and chromatography.

  8. Low Bias Transport in Graphene: An Introduction (lecture notes)

    Presentation Materials | 22 Sep 2009 | Contributor(s):: Mark Lundstrom, tony low, Dionisis Berdebes

    These notes complement a lecture with the same title presented by Mark Lundstrom and Dionisis Berdebes, at the NCN@Purdue Summer School, July 20-24, 2009.

  9. Metal Oxide Nanowires as Gas Sensing Elements: from Basic Research to Real World Applications

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    Online Presentations | 21 Sep 2009 | Contributor(s):: andrei kolmakov

    Quasi 1-D metal oxide single crystal chemiresistors are close to occupy their specific niche in the real world of solid state sensorics. Potentially, the major advantage of this kind of sensors with respect to available granular thin film sensors will be their size and stable, reproducible and...

  10. Lecture 3: Low Bias Transport in Graphene: An Introduction

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    Online Presentations | 18 Sep 2009 | Contributor(s):: Mark Lundstrom

    Outline:Introduction and ObjectivesTheoryExperimental approachResultsDiscussionSummaryLecture notes are available for this lecture.

  11. ECE 656 Lecture 4: Density of States - Density of Modes

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    Online Presentations | 14 Sep 2009 | Contributor(s):: Mark Lundstrom

    Outline:Density of states Example: graphene Density of modes Example: graphene Summary

  12. ME 597 Lecture 1: Introduction to Basic Quantum Mechanics

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    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

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

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    Online Presentations | 01 Sep 2009 | Contributor(s):: Mark Lundstrom

    Outline:Density of states in k-space Example Working in energy space Discussion Summary

  14. ECE 656 Lecture 1: Bandstructure Review

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    Online Presentations | 26 Aug 2009 | Contributor(s):: Mark Lundstrom

    Outline:Bandstructure in bulk semiconductorsQuantum confinementSummary

  15. Comparison of PCPBT Lab and Periodic Potential Lab

    0.0 out of 5 stars 

    Presentation Materials | 10 Aug 2009 | Contributor(s):: Abhijeet Paul, Samarth Agarwal, Gerhard Klimeck, Junzhe Geng

    This small presentation provides information about the comparison performed for quantum wells made of GaAs and InAs in two different tools. This has been done to benchmark the results from completely two different sets of tools and validate the obtained results. In this presentation we provide...

  16. SIESTA

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    Tools | 05 Mar 2008 | Contributor(s):: Lucas Wagner, Jeffrey C Grossman, Joe Ringgenberg, daniel richards, Alexander S McLeod, Eric Isaacs, Jeffrey B. Neaton

    Use SIESTA to perform electronic structure calculations

  17. CNTbands: First-Time User Guide

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    Teaching Materials | 14 Jun 2009 | Contributor(s):: Xufeng Wang, Youngki Yoon

    This is a simple guide designed for first-time users of CNTbands. It gives a brief introduction of the tool and a series of tutorials to help users learn the basics of CNTbands.NCN@Purdue

  18. Band Structure Lab: First-Time User Guide

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    Teaching Materials | 15 Jun 2009 | Contributor(s):: Abhijeet Paul, Benjamin P Haley, Gerhard Klimeck

    This document provides useful information about Band Structure Lab. First-time users will find basic ideas about the physics behind the tool such as band formation, the Hamiltonian description, and other aspects. Additionally, we provide explanations of the input settings and the results of the...

  19. Band Structure Lab Demonstration: Bulk Strain

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    Animations | 03 Jun 2009 | Contributor(s):: Gerhard Klimeck

    This video shows an electronic structure calculation of bulk Si using Band Structure Lab. Several powerful features of this tool are demonstrated.

  20. Piece-Wise Constant Potential Barriers Tool Demonstration: Bandstructure Formation with Finite Superlattices

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    Animations | 03 Jun 2009 | Contributor(s):: Gerhard Klimeck, Benjamin P Haley

    This video shows the simulation and analysis of a systems with a series of potential barriers. Several powerful analytic features of Piece-wise Constant Potential Barrier Tool (PCPBT) are demonstrated.