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1D Drift Diffusion Model for Crystalline Solar Cells
16 Apr 2011 | | Contributor(s):: Dragica Vasileska, Xufeng Wang, Shankar Ramakrishnan
Simulate a 1D solar cell of crystalline material with drift diffusion equations
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Drift Diffusion Lab Worked out problems (Drift)
16 Aug 2010 | | Contributor(s):: Saumitra Raj Mehrotra, Dragica Vasileska, Gerhard Klimeck
This sample worked out problem illustrated the concept of mobility. Mobility values are computed for different material and doping levels.
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Drift Diffusion Lab Worked out problems (Diffusion)
16 Aug 2010 | | Contributor(s):: Saumitra Raj Mehrotra, Dragica Vasileska, Gerhard Klimeck
A sample problem is worked out using Drift-Diffusion lab. The problem statement deals with the concept of diffusion in semiconductors.
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ABACUS: Test for Drift Diffusion Lab
11 Aug 2010 | | Contributor(s):: Saumitra Raj Mehrotra, Dragica Vasileska, Gerhard Klimeck
The objective of this test is to give an idea to a self-learning students or to instructors in the case this test is used in a classroom the level of understanding of this topic when students have gone through the learning material, worked exercises and have completed the assignments and the...
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Verification of the Validity of the Drift-Diffusion Lab Tool
10 Aug 2010 | | Contributor(s):: Saumitra Raj Mehrotra, Dragica Vasileska, Gerhard Klimeck
Drift-Diffusion Lab results are verified analytically. In the first test minority carrier concentration is computed in a semiconductor slab with constant carrier Generation rate (/cm3.s). In the second test bias is applied across a semiconductor slab and current is computed both analytically and...
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Numerical solution of the Drift-Diffusion Equations for a diode
28 May 2010 | | Contributor(s):: Dragica Vasileska
This material describes the implementation and also gives the source code for the numerical solution of the Drift-Diffusion equations for a PN Diode. The code can be easily generalized for any 2D or 3D device.
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Drift-Diffusion Modeling and Numerical Implementation Details
28 May 2010 | | Contributor(s):: Dragica Vasileska
This tutorial describes the constitutive equations for the drift-diffusion model and implementation details such as discretization and numerical solution of the algebraic equations that result from the finite difference discretization of the Poisson and the continuity...
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Nanotechnology Animation Gallery
20 Apr 2010 | | Contributor(s):: Saumitra Raj Mehrotra, Gerhard Klimeck
Animations and visualization are generated with various nanoHUB.org tools to enable insight into nanotechnology and nanoscience. Click on image for detailed description and larger image download. Additional animations are also...
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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...
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ECE 656 Lecture 36: The Course in a Lecture
09 Dec 2009 | | Contributor(s):: Mark Lundstrom
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ECE 656 Lecture 28: Balance Equation Approach I
13 Nov 2009 | | Contributor(s):: Mark Lundstrom
Outline:IntroductionGeneral continuity equationCarrier continuity equationCurrent equationSummary
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ECE 656 Lecture 10: The Drift-Diffusion Equation
18 Sep 2009 | | Contributor(s):: Mark Lundstrom
Outline:Transport in the bulkThe DD equationIndicial notationDD equation with B-field
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From Semi-Classical to Quantum Transport Modeling: Drift-Diffusion and Hydrodynamic Modeling
09 Aug 2009 | | Contributor(s):: Dragica Vasileska
This set of powerpoint slides series provides insight on what are the tools available for modeling devices that behave either classically or quantum-mechanically. An in-depth description is provided to the approaches with emphasis on the advantages and disadvantages of each approach. Conclusions...
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From Semi-Classical to Quantum Transport Modeling
09 Aug 2009 | | Contributor(s):: Dragica Vasileska
This set of powerpoint slides series provides insight on what are the tools available for modeling devices that behave either classically or quantum-mechanically. An in-depth description is provided to the approaches with emphasis on the advantages and disadvantages of each approach. Conclusions...
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MOSFet: First-Time User Guide
13 Jun 2009 | | Contributor(s):: Saumitra Raj Mehrotra, Benjamin P Haley
This first-time user guide provides introductory material to MOSFet on nanoHUB. The introduction to MOSFETs and SOI-MOSFETs is followed by a tour of the Rappture interface, which notes key inputs and typical outputs. We discuss the default simulation (what happens if you don't change any inputs,...
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PN Junction 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 PN Junction Lab on nanoHUB. The introduction to PN junctions is followed by a tour of the Rappture interface, which notes key inputs and typical outputs. We discuss the default simulation (what happens if you don't change any inputs,...
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MOSFet Demonstration: MOSFET Device Simulation and Analysis
03 Jun 2009 | | Contributor(s):: Gerhard Klimeck, Benjamin P Haley
This video shows the simulation and analysis of a MOSFET device using the MOSFet tool. Several powerful analytic features of this tool are demonstrated.
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PN Junction Lab Demonstration: Asymmetric PN Junctions
03 Jun 2009 | | Contributor(s):: Gerhard Klimeck, Benjamin P Haley
This video shows the simulation and analysis of a several PN junctions using PN Junction Lab, which is powered by PADRE. Several powerful analytic features of this tool are demonstrated.
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ECE 606 Lecture 16: Carrier Transport
23 Feb 2009 | | Contributor(s):: Muhammad A. Alam
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ECE 659 Lecture 2: Molecular, Ballistic and Diffusive Transport
21 Jan 2009 | | Contributor(s):: Supriyo Datta