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.

Resources (81-100 of 116)

  1. ABACUS - Assembly of Basic Applications for Coordinated Understanding of Semiconductors

    08 Aug 2008 | Tools | Contributor(s): Xufeng Wang, Dragica Vasileska, Gerhard Klimeck

    One-stop-shop for teaching semiconductor device education

    http://nanohub.org/resources/abacus

  2. Computational Electronics HW - Bandstructure Calculation

    11 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

    www.eas.asu.edu/~vasileskNSF

    http://nanohub.org/resources/5033

  3. Energy Bands as a Function of the Geometry of the n-Well Potential: an Exercise

    08 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

    Explores the position and the width of the bands as a function of the 10-barrier potential parameters. NSF

    http://nanohub.org/resources/4873

  4. Tutorial on Semi-empirical Band Structure Methods

    08 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska

    This tutorial explains in details the Empirical Pseudopotential Method for the electronic structure calculation, the tight-binding method and the k.p method. For more details on the Empirical...

    http://nanohub.org/resources/4882

  5. Periodic Potentials and the Kronig-Penney Model

    02 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska

    This material describes the derivation of the Kronig-Penney model for delta-function periodic potentials.

    http://nanohub.org/resources/4847

  6. Periodic Potentials and Bandstructure: an Exercise

    02 Jul 2008 | Teaching Materials | Contributor(s): Dragica Vasileska, Gerhard Klimeck

    This exercise teaches the students that in the case of strong coupling between the neighboring wells in square and Coulomb periodic potential wells electrons start to behave as free electrons and...

    http://nanohub.org/resources/4851

  7. Computational Nanoscience, Lecture 19: Band Structure and Some In-Class Simulation: DFT for Solids

    05 May 2008 | Teaching Materials | Contributor(s): Jeffrey C Grossman, Elif Ertekin

    In this class we briefly review band structures and then spend most of our class on in-class simulations. Here we use the DFT for molecules and solids (Siesta) course toolkit. We cover a variety...

    http://nanohub.org/resources/4510

  8. The Novel Nanostructures of Carbon

    28 Feb 2008 | Online Presentations | 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...

    http://nanohub.org/resources/3997

  9. Computational Nanoscience, Lecture 4: Geometry Optimization and Seeing What You're Doing

    13 Feb 2008 | Teaching Materials | Contributor(s): Jeffrey C Grossman, Elif Ertekin

    In this lecture, we discuss various methods for finding the ground state structure of a given system by minimizing its energy. Derivative and non-derivative methods are discussed, as well as the...

    http://nanohub.org/resources/4035

  10. Homework Assignment: Periodic Potentials

    31 Jan 2008 | Teaching Materials | Contributor(s): David K. Ferry

    Using the Periodic Potential Lab on nanoHUB determine the allowed bands for an energy barrier of 5 eV, a periodicity W = 0.5nm, and a barrier thickness of 0.1nm. How do these bands change if the...

    http://nanohub.org/resources/3950

  11. MIT Atomic Scale Modeling Toolkit

    24 Jan 2008 | Tools | Contributor(s): daniel richards, Elif Ertekin, Jeffrey C Grossman, David Strubbe, Justin Riley

    Tools for Atomic Scale Modeling

    http://nanohub.org/resources/ucb_compnano

  12. Engineering at the nanometer scale: Is it a new material or a new device?

    06 Nov 2007 | Online Presentations | 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.

    http://nanohub.org/resources/3504

  13. MCW07 Impact of Porphyrin Functional Groups on InAs Gas Sensors

    05 Nov 2007 | Online Presentations | 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...

    http://nanohub.org/resources/3149

  14. Simple Photonic Crystals

    18 Sep 2007 | Tools | Contributor(s): Jing Ouyang, Xufeng Wang, Minghao Qi

    Photonic Crystal characteristics in an easy way

    http://nanohub.org/resources/phcband

  15. MCW07 Electronic Level Alignment at Metal-Molecule Contacts with a GW Approach

    05 Sep 2007 | Online Presentations | 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...

    http://nanohub.org/resources/3094

  16. A Tutorial for Nanoelectronics Simulation Tools

    03 Jul 2007 | Online Presentations | 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...

    http://nanohub.org/resources/2842

  17. Introduction to CNTbands

    28 Jun 2007 | Learning Modules | 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...

    http://nanohub.org/resources/2843

  18. StrainBands

    15 Jun 2007 | Tools | Contributor(s): Joe Ringgenberg, Joydeep Bhattacharjee, Jeffrey B. Neaton, Jeffrey C Grossman, Eric Schwegler

    Explore the influence of strain on first-principles bandstructures of semiconductors.

    http://nanohub.org/resources/strainbands

  19. Bandstructure of Carbon Nanotubes and Nanoribbons

    14 Jun 2007 | Learning Modules | Contributor(s): James K Fodor, Seokmin Hong, Jing Guo

    This learning module introduces users to the Carbon-Nano Bands simulation tool, which simulates the bandstructure of Carbon Nanotubes (CNTs) and Nanoribbons (CNRs). To gives users a strong...

    http://nanohub.org/resources/2762

  20. Atomistic Alloy Disorder in Nanostructures

    26 Feb 2007 | Online Presentations | 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...

    http://nanohub.org/resources/2350