Tags: band structure

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.

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  1. nanoMATERIALS SeqQuest DFT

    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

    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

    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

    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

    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

    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...

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

    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. Akash Paharia

    Currently, I am an undergraduate student in Electrical Department of Indian Institute of Technology ,Delhi. I am interested in knowing about new technologies in the field of semiconductors device...

    https://nanohub.org/members/38550

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

    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.

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

    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...

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

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

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

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

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

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

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

    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

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

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

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

  15. ECE 656 Lecture 1: Bandstructure Review

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

    Outline:Bandstructure in bulk semiconductorsQuantum confinementSummary

  16. Comparison of PCPBT Lab and Periodic Potential Lab

    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...

  17. AQME Advancing Quantum Mechanics for Engineers

    Introduction to Advancing Quantum Mechanics for Engineers and Physicists “Advancing Quantum Mechanics for Engineers” (AQME) toolbox is an assemblage of individually authored tools...

    https://nanohub.org/wiki/AQME

  18. SIESTA

    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

  19. CNTbands: First-Time User Guide

    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

  20. Band Structure Lab: First-Time User Guide

    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...