Periodic Potential Lab Worked Examples
11 Apr 2011 | Teaching Materials | Contributor(s): SungGeun Kim, Abhijeet Paul, Gerhard Klimeck, Lynn Zentner, Benjamin P Haley
Worked Examples for Periodic Potential Lab
Thermoelectric effects in semiconductor nanostructures: Role of electron and lattice properties
06 Oct 2010 | Online Presentations | Contributor(s): Abhijeet Paul, Gerhard Klimeck
This presentation covers some aspects of present development in the field of thermoelectricity and focuses particularly on the silicon nanowires as potential thermoelectric materials. The electronic and phonon dispersions are calculated and used for the calculation of thermoelectric properties in these nanowires.
InAs: Evolution of iso-energy surfaces for heavy, light, and split-off holes due to uniaxial strain.
25 May 2010 | Animations | Contributor(s): Abhijeet Paul, Denis Areshkin, Gerhard Klimeck
Movie was generated using Band Structure Lab tool at nanoHUB and allows to scan over four parameters:
Hole energy measured from the top of the corresponding band (i.e. the origin of energy scales for LH and SOH is different)
Strain direction: , , 
Carrier type: LH, HH, SOH
Red lines indicate reciprocal half-vectors in  directions (L-points in Brillouin zone).
Scan proceeds as four nested cycles for the variables listed from left to right, i.e. the …
NCN Student Meet Presentations
11 Feb 2010 | Presentation Materials | Contributor(s): Abhijeet Paul, Ganesh Krishna Hegde, Ankit Jain, Fengyuan (Thomas) Li, Shuaib Salamat, Xufeng Wang, Insoo Woo, Robert Wortman, Min Xu, Ya Zhou
These are the presentations given by the students during the first 2010 event for NCN at Purdue. Students showcased a wide genre of research they are doing under the NCN. All the talks have been uploaded here for easy access.
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 completely two different sets of tools and validate the obtained results. In this presentation we provide the motivation for this work, the input details and results obtained. The tools used for this purpose are Piecewise Constant Potential Barrier Tool(PCPBT) and Periodic Potential Lab. We provide ...
Band Structure Lab: First-Time User Guide
15 Jun 2009 | Teaching Materials | Contributor(s): Abhijeet Paul, Benjamin P Haley, Gerhard Klimeck
This document provides useful information about Band Structure Lab. First-time users will find basic ideas about the physics behind the tool such as band formation, the Hamiltonian description, and other aspects. Additionally, we provide explanations of the input settings and the results of the simulations. Finally, this document gives users the chance to examine case studies performed using the tool. Information offered in this document encourages users to perform more simulations in order to …
Periodic Potential Lab: First-Time User Guide
07 Jun 2009 | Teaching Materials | Contributor(s): Abhijeet Paul, Benjamin P Haley, Gerhard Klimeck, SungGeun Kim, Lynn Zentner
This document provides guidance to first-time users of the Periodic Potential Lab tool. It offers basic information about solutions to the Schröedinger Equation in case of periodic potential in 1 dimension (1D). This document also contains suggested exercises to help users run the tool and understand the associated concepts. If you encounter any errors or problems running the tool, feel free to contact us. Suggestions for improvement are also welcomed.
Crystal Viewer Tool: First-Time User Guide
01 Jun 2009 | Teaching Materials | Contributor(s): Abhijeet Paul, Benjamin P Haley, Gerhard Klimeck
This first-time user guide is an introduction to the Crystal Viewer Tool lab. It provides basic definitions, including a definition of crystals. Any suggestions for changes and corrections are welcomed.
Carrier Statistics Lab: First-Time User Guide
09 Mar 2009 | Teaching Materials | Contributor(s): Abhijeet Paul, Gerhard Klimeck, Benjamin P Haley, Saumitra Raj Mehrotra
This first-time user guide is an introduction to the Carrier Statistics Lab . It provides basic definitions, guidance on how to run the tool, and suggested exercises to help users get accustomed to the idea of distribution functions as well as how these functions are used in determining the carrier concentration and fermi-level in some of the common semi-conductors. If you have any suggestions for improvements or corrections, feel free to contact us.
02 Sep 2008 | Tools | Contributor(s): SungGeun Kim, Mathieu Luisier, Benjamin P Haley, Abhijeet Paul, Saumitra Raj Mehrotra, Gerhard Klimeck
Full-band 3D quantum transport simulation in nanowire structure
Homework Exercise on Bravais Lattices, Crystal Structures, Miller Indices
30 Mar 2008 | Teaching Materials | Contributor(s): Abhijeet Paul, Gerhard Klimeck
The tutorial questions based on Crystal Viewer Lab v1.0 available online at Crystal Viewer Lab. Students are asked to explore different Bravais lattices, crystal structures, and Miller indices. Reference / course book: Semiconductor Device Fundamentals by Robert E. PierretNCN@Purdue
06 Feb 2008 | Tools | 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.
22 Jan 2008 | Tools | Contributor(s): Saumitra Raj Mehrotra, Abhijeet Paul, Gerhard Klimeck, Gloria Wahyu Budiman
Simulate single semiconductor characteristics
Periodic Potential Lab
19 Jan 2008 | Tools | Contributor(s): Abhijeet Paul, Junzhe Geng, Gerhard Klimeck
Solve the time independent schrodinger eqn. for arbitrary periodic potentials
Homework Exercise on Fermi-Dirac and Maxwell-Boltzmann Distributions
24 Jan 2008 | Teaching Materials | Contributor(s): Abhijeet Paul, Saumitra Raj Mehrotra, Gerhard Klimeck
The tutorial questions based on Carrier Statistics Lab v1.0 available online at Carrier Statistics Lab. Students are asked to explore the differences between Fermi-Dirac and Maxwell-Boltzmann distributions, compute electron and hole concentrations, study temperature dependences, and study freeze-out.NCN@Purdue
Carrier Statistics Lab
08 Jan 2008 | Tools | Contributor(s): Saumitra Raj Mehrotra, Abhijeet Paul, Gerhard Klimeck
Calculate the electron & hole density in semiconductors
Band Structure Lab
19 May 2006 | Tools | Contributor(s): Samik Mukherjee, Kai Miao, Abhijeet Paul, Neophytos Neophytou, Raseong Kim, Junzhe Geng, Michael Povolotskyi, Tillmann Christoph Kubis, Arvind Ajoy, Bozidar Novakovic, James Fonseca, Hesameddin Ilatikhameneh, Sebastian Steiger, Michael McLennan, Mark Lundstrom, Gerhard Klimeck
Computes the electronic and phonon structure of various materials in the spatial configuration of bulk , quantum wells, and wires