Tags: GaAs

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  1. nanoHUB Simulation Activity - Orientations of Common Single Crystal Substrates

    07 Jun 2016 | Teaching Materials | Contributor(s): Tanya Faltens

    In this activity, you will use Crystal Viewer to create crystal structures with surfaces that are specific planes, specified by Miller indices, allowing you to visualize and compare the atomic...

    https://nanohub.org/resources/24375

  2. ab initio Model for Mobility and Seebeck coefficient using Boltzmann Transport (aMoBT) equation

    11 Jun 2015 | Tools | Contributor(s): Alireza Faghaninia, Joel Ager (editor), Cynthia S Lo (editor)

    ab initio electronic transport model to calculate low-field electrical mobility and Seebeck coefficient of semiconductors in Boltzmann transport framework.

    https://nanohub.org/resources/amobt

  3. Exploring New Channel Materials for Nanoscale CMOS

    28 Jun 2013 | Papers | Contributor(s): Anisur Rahman

    The improved transport properties of new channel materials, such as Ge and III-V semiconductors, along with new device designs, such as dual gate, tri gate or FinFETs, are expected to enhance the...

    https://nanohub.org/resources/18738

  4. Exit code 139

    Closed | Responses: 1

    GaAs with biaxial strain, swept from -3% to +3% produces the following error: Problem launching job: Program...

    https://nanohub.org/answers/question/1217

  5. Why quantum dot simulation domain must contain multi-million atoms?

    11 Jan 2013 | Online Presentations | Contributor(s): Muhammad Usman

    The InGaAs quantum dots obtained from the self-assembly growth process are heavily strained. The long-range strain and piezoelectric fields significantly modifies the electronic structure of the...

    https://nanohub.org/resources/16192

  6. DBR Laser Simulator

    08 Sep 2012 | Tools | Contributor(s): Nikhil Sancheti, Lynford Goddard, Christopher Adam Edwards

    Describes properties of a GaAs/AlGaAs DBR laser

    https://nanohub.org/resources/dbrlaser

  7. Quantitative Modeling and Simulation of Quantum Dots

    18 Apr 2011 | Presentation Materials | Contributor(s): Muhammad Usman

    Quantum dots grown by self-assembly process are typically constructed by 50,000 to 5,000,000 structural atoms which confine a small, countable number of extra electrons or holes in a space that is...

    https://nanohub.org/resources/9332

  8. Quantum Dot Wave Function (Quantum Dot Lab)

    02 Feb 2011 | Animations | Contributor(s): Gerhard Klimeck, David S. Ebert, Wei Qiao

    Electron density of an artificial atom. The animation sequence shows various electronic states in an Indium Arsenide (InAs)/Gallium Arsenide (GaAs) self-assembled quantum dot.

    https://nanohub.org/resources/10751

  9. Self-Assembled Quantum Dot Structure (pyramid)

    02 Feb 2011 | Animations | Contributor(s): Gerhard Klimeck, Insoo Woo, Muhammad Usman, David S. Ebert

    Pyramidal InAs Quantum dot. The quantum dot is 27 atomic monolayers wide at the base and 15 atomic monolayers tall.

    https://nanohub.org/resources/10730

  10. Quantum Dot Wave Function (still image)

    31 Jan 2011 | Animations | Contributor(s): Gerhard Klimeck, David S. Ebert, Wei Qiao

    Electron density of an artificial atom. The image shown displays the excited electron state in an Indium Arsenide (InAs) / Gallium Arsenide (GaAs) self-assembled quantum dot.

    https://nanohub.org/resources/10692

  11. Self-Assembled Quantum Dot Wave Structure

    31 Jan 2011 | Animations | Contributor(s): Gerhard Klimeck, Insoo Woo, Muhammad Usman, David S. Ebert

    A 20nm wide and 5nm high dome shaped InAs quantum dot grown on GaAs and embedded in InAlAs is visualized.

    https://nanohub.org/resources/10689

  12. How extensively have nanoparticles been tested in the field of solar cells?

    Closed | Responses: 2

    I have seen research that has included silver nanoparticles placed in the wafers of Si. I’ve also seen https://nanohub.org/answers/question/685

  13. Atomistic Modeling and Simulation Tools for Nanoelectronics and their Deployment on nanoHUB.org

    16 Dec 2010 | Online Presentations | Contributor(s): Gerhard Klimeck

    At the nanometer scale the concepts of device and material meet and a new device is a new material and vice versa. While atomistic device representations are novel to device physicists, the...

    https://nanohub.org/resources/10199

  14. Is there a self-consistent schrodinger-poisson solver on nanohub?

    Closed | Responses: 0

    I’m new to nanohub, and I’m looking for a self-consistent schrodinger-poisson solver that can simulate https://nanohub.org/answers/question/619

  15. Rode's Method: Theory and Implementation

    06 Jul 2010 | Teaching Materials | Contributor(s): Dragica Vasileska

    This set of teaching materials provides theoretical description of the Rode's method for the low field mobility calculation that is accompanied with a MATLAB code for the low field mobility...

    https://nanohub.org/resources/9249

  16. Negative Differential Resistivity Exercise

    28 Jun 2010 | Teaching Materials | Contributor(s): Gerhard Klimeck, Parijat Sengupta, Dragica Vasileska

    In certain semiconductors such as GaAs and InP the average velocity as a function of field strength displays a maximum followed by a regime of decreasing velocity. Hilsum, Ridley, and Watkins...

    https://nanohub.org/resources/9238

  17. Bulk Monte Carlo: Implementation Details and Source Codes Download

    01 Jun 2010 | Teaching Materials | Contributor(s): Dragica Vasileska, Stephen M. Goodnick

    The Ensemble Monte Carlo technique has been used now for over 30 years as a numerical method to simulate nonequilibrium transport in semiconductor materials and devices, and has been the subject...

    https://nanohub.org/resources/9109

  18. Electronic band structure

    12 Apr 2010 | Animations | Contributor(s): Saumitra Raj Mehrotra, Gerhard Klimeck

    In solid-state physics, the electronic band structure (or simply band structure) of a solid describes ranges of energy in which an electron is "forbidden" or "allowed". The band structure is...

    https://nanohub.org/resources/8814

  19. Antal Ürmös

    https://nanohub.org/members/37332

  20. Comparison of PCPBT Lab and Periodic Potential Lab

    10 Aug 2009 | Online Presentations | 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...

    https://nanohub.org/resources/7201