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. 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...

    https://nanohub.org/resources/4035

  2. 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...

    https://nanohub.org/resources/3950

  3. 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

    https://nanohub.org/resources/ucb_compnano

  4. 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.

    https://nanohub.org/resources/3504

  5. 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...

    https://nanohub.org/resources/3149

  6. Simple Photonic Crystals

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

    Photonic Crystal characteristics in an easy way

    https://nanohub.org/resources/phcband

  7. 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...

    https://nanohub.org/resources/3094

  8. 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...

    https://nanohub.org/resources/2842

  9. 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...

    https://nanohub.org/resources/2843

  10. 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.

    https://nanohub.org/resources/strainbands

  11. 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...

    https://nanohub.org/resources/2762

  12. 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...

    https://nanohub.org/resources/2350

  13. Energy Bands In Periodic Potentials

    06 Feb 2007 | Online Presentations | 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...

    https://nanohub.org/resources/2263

  14. Surprises on the nanoscale: Plasmonic waves that travel backward and spin birefringence without magnetic fields

    29 Jan 2007 | Online Presentations | 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...

    https://nanohub.org/resources/2256

  15. CNTbands

    14 Dec 2006 | Tools | Contributor(s): Gyungseon Seol, Youngki Yoon, James K Fodor, Jing Guo, Akira Matsudaira, Diego Kienle, Gengchiau Liang, Gerhard Klimeck, Mark Lundstrom, Ahmed Ibrahim Saeed

    This tool simulates E-k and DOS of CNTs and graphene nanoribbons.

    https://nanohub.org/resources/cntbands-ext

  16. Device Physics and Simulation of Silicon Nanowire Transistors

    28 Sep 2006 | Papers | Contributor(s): Jing Wang

    As the conventional silicon metal-oxide-semiconductor field-effect transistor (MOSFET) approaches its scaling limits, many novel device structures are being extensively explored. Among them,...

    https://nanohub.org/resources/1833

  17. ECE 659 Lecture 19: Band Structure: Prelude to Sub-Bands

    20 Jul 2006 | Online Presentations | Contributor(s): Supriyo Datta

    Reference Chapter 5.2

    https://nanohub.org/resources/1387

  18. ECE 659 Lecture 18: Band Structure: 3-D Solids

    20 Jul 2006 | Online Presentations | Contributor(s): Supriyo Datta

    Reference Chapter 5.3

    https://nanohub.org/resources/1383

  19. ECE 659 Lecture 17: Band Structure: Beyond 1-D

    20 Jul 2006 | Online Presentations | Contributor(s): Supriyo Datta

    Reference Chapter 5.2

    https://nanohub.org/resources/1379

  20. ECE 659 Lecture 16: Band Structure: Toy Examples

    20 Jul 2006 | Online Presentations | Contributor(s): Supriyo Datta

    Reference Chapter 5.1

    https://nanohub.org/resources/1373