Tags: diffusion

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  1. 2-D Diffusion Game

    28 Sep 2015 | | Contributor(s):: Tam Mayeshiba

    Play a 2-D diffusion game

  2. A Pursuit of Geometry-Centric Solutions to Engineering Problems

    04 Apr 2017 | | Contributor(s):: Ganesh Subbarayan

    The main thesis of this talk is that a geometry-centric viewpoint during analysis of behavior is not only necessary to ensure the accuracy of the predicted shapes of boundaries and interfaces, but also enables efficient solution. Furthermore, I will demonstrate that an explicit parametric...

  3. BJT Lab

    06 Feb 2008 | | Contributor(s):: Saumitra Raj Mehrotra, Abhijeet Paul, Gerhard Klimeck, Dragica Vasileska, Gloria Wahyu Budiman

    This tool simulates a Bipolar Junction Transistor (BJT) using a 2D mesh. Powered by PADRE.

  4. Computational Nanoscience, Lecture 21: Quantum Monte Carlo, part II

    15 May 2008 | | Contributor(s):: Jeffrey C Grossman, Elif Ertekin

    This is our second lecture in a series on Quantum Monte Carlo methods. We describe the Diffusion Monte Carlo approach here, in which the approximation to the solution is not restricted by choice of a functional form for the wavefunction. The DMC approach is explained, and the fixed node...

  5. David R. Ely

    https://nanohub.org/members/16130

  6. Diffusion Calculator: FCC Dilute Solutes

    25 Sep 2015 | | Contributor(s):: Henry Wu, DANE MORGAN

    This tool calculates the diffusivity of a dilute solute in an FCC lattice with the 5-frequency model.

  7. Diffusion Calculator: HCP Dilute Solutes

    25 Sep 2015 | | Contributor(s):: Henry Wu, DANE MORGAN

    This tool calculates the diffusivity of a dilute solute in an HCP lattice with the 8-frequency model.

  8. Diffusion Couple on Net-Logo

    Collections | 25 Jul 2017 | Posted by Tanya Faltens

    https://nanohub.org/groups/materials/collections/useful-simulations-elsewhere

  9. Diffusion of holes and electrons

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

    Diffusion is a process of particles distributing themselves from regions of high- to low- concentrations. In semi-classical electronics these particles are the charge carriers (electrons and holes). The rate at which a carrier can diffuse is called diffusion constant with units of cm2/s. The...

  10. Drift Diffusion Lab: First-Time User Guide

    13 Jun 2009 | | Contributor(s):: Saumitra Raj Mehrotra, Benjamin P Haley

    This first-time user guide provides introductory material to Drift Diffusion Lab on nanoHUB. It includes a tour of the Rappture interface, which notes key inputs and typical outputs. It also provides an introduction to concepts of drift and diffusion in a semiconductor. We discuss the default...

  11. Drift-Diffusion Lab

    22 Jan 2008 | | Contributor(s):: Saumitra Raj Mehrotra, Abhijeet Paul, Gerhard Klimeck, Gloria Wahyu Budiman

    Simulate single semiconductor characteristics

  12. ECE 606 Lecture 10: Shockley, Reed, Hall and other Recombinations

    27 Sep 2012 | | Contributor(s):: Gerhard Klimeck

  13. ECE 606 Lecture 12: High Field, Mobility, Hall Effect, Diffusion

    10 Oct 2012 | | Contributor(s):: Gerhard Klimeck

  14. ECE 606 Lecture 17: Hall Effect, Diffusion

    24 Feb 2009 | | Contributor(s):: Muhammad A. Alam

    Outline:Measurement of mobilityHall Effect for determining carrier concentrationPhysics of diffusionConclusions

  15. ECE 695A Lecture 11R: Review Questions

    08 Feb 2013 | | Contributor(s):: Muhammad Alam

    Review Questions:Does Einstein relationship hold for activated diffusion?People argue that the forward dissociation and reverse passivation have similar activation barriers. Would you support the argument?What assumption did I make regarding diffusion of H in SiO2 that makes the derivation...

  16. Grain Boundary Diffusion Calculator

    25 Sep 2015 |

    Calculates the effective diffusivity in a grain boundary network with two types of randomly distributed grain boundaries.

  17. Illinois ECE 440 Solid State Electronic Devices, Lecture 13: Diffusion

    01 Oct 2009 | | Contributor(s):: Eric Pop

    ECE 440: Lecture 13Diffusion Current

  18. Illinois ECE 440 Solid State Electronic Devices, Lecture 14-15: Diffusion with Recombination

    08 Oct 2009 | | Contributor(s):: Eric Pop

    •Diffusion with recombination•The diffusion length (distance until they recombine)

  19. Illinois ECE 440 Solid State Electronic Devices, Lecture 16-17: Diffusion

    20 Oct 2009 | | Contributor(s):: Eric Pop

    So far:•Energy bands, Doping, Fermi levels•Drift (~n*v), diffusion (~dn/dx)•Einstein relationship (D/μ = kT/q)•“Boring” semiconductor resistors (either n- or p-type)•Majority/minority carriers with illuminationToday, our first “useful” device:•The P-N junction diode in equilibrium (external...

  20. 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.