Nanoelectronic Modeling Lecture 32: Strain Layer Design through Quantum Dot TCAD

04 Aug 2010 | Online Presentations | Contributor(s): Gerhard Klimeck, Muhammad Usman

This presentation demonstrates the utilization of NEMO3D to understand complex experimental data of embedded InAs quantum dots that are selectively overgrown with a strain reducing InGaAs layer. …

https://nanohub.org/resources/9272

Nanoelectronic Modeling Lecture 31a: Long-Range Strain in InGaAs Quantum Dots

04 Aug 2010 | Online Presentations | Contributor(s): Gerhard Klimeck

This presentation demonstrates the importance of long-range strain in quantum dots Numerical analysis of the importance of the buffer around the central quantum dot - local band edges – …

https://nanohub.org/resources/9270

Nanoelectronic Modeling Lecture 29: Introduction to the NEMO3D Tool

04 Aug 2010 | Online Presentations | Contributor(s): Gerhard Klimeck

This presentation provides a very high level software overview of NEMO3D. The items discussed are: Modeling Agenda and Motivation Tight-Binding Motivation and basic formula expressions Tight …

https://nanohub.org/resources/8599

Nanoelectronic Modeling Lecture 28: Introduction to Quantum Dots and Modeling Needs/Requirements

20 Jul 2010 | Online Presentations | Contributor(s): Gerhard Klimeck

This presentation provides a very high level software overview of NEMO1D. Learning Objectives: This lecture provides a very high level overview of quantum dots. The main issues and questions …

https://nanohub.org/resources/8598

Nanotechnology Animation Gallery

22 Apr 2010 | Teaching Materials | 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. …

https://nanohub.org/resources/8882

3D wavefunctions

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

In quantum mechanics the time-independent Schrodinger's equation can be solved for eigenfunctions (also called eigenstates or wave-functions) and corresponding eigenenergies (or energy levels) for a …

https://nanohub.org/resources/8805

Illinois ABE 446 Lecture 3: Quantum Dots and Polymers

11 Feb 2010 | Teaching Materials | Contributor(s): Kaustubh Bhalerao

NCN@illinois

https://nanohub.org/resources/8422

Nanoelectronic Modeling: Exercises 1-3 - Barrier Structures, RTDs, and Quantum Dots

27 Jan 2010 | Online Presentations | Contributor(s): Gerhard Klimeck

Exercises: Barrier Structures Uses: Piece-Wise Constant Potential Barrier Tool Resonant Tunneling Diodes Uses: Resonant Tunneling Diode Simulation with NEGF • Hartree calculation • …

https://nanohub.org/resources/8259

Nanoelectronic Modeling: From Quantum Mechanics and Atoms to Realistic Devices

25 Jan 2010 | Courses | Contributor(s): Gerhard Klimeck

The goal of this series of lectures is to explain the critical concepts in the understanding of the state-of-the-art modeling of nanoelectronic devices such as resonant tunneling diodes, quantum …

https://nanohub.org/resources/8086

Quantum Dot Lab Demonstration: Pyramidal Qdots

11 Jun 2009 | Animations | Contributor(s): Gerhard Klimeck, Benjamin P Haley

This video shows the simulation and analysis of a pyramid-shaped quantum dot using Quantum Dot Lab. Several powerful analytic features of this tool are demonstrated.

https://nanohub.org/resources/6845

Thermoelectric Power Factor Calculator for Nanocrystalline Composites

18 Oct 2008 | Tools | Contributor(s): Terence Musho, Greg Walker

Quantum Simulation of the Seebeck Coefficient and Electrical Conductivity in a 2D Nanocrystalline Composite Structure using Non-Equilibrium Green's Functions

https://nanohub.org/resources/nccpf

Nanobiotechnology – a different perspective

22 Jul 2008 | Online Presentations | Contributor(s): Murali Sastry

The study of the synthesis, exotic properties, assembly/packaging and potential commercial application of nanomaterials is an extremely important topic of research that is expected to have …

https://nanohub.org/resources/4807

Nano Carbon: From ballistic transistors to atomic drumheads

14 May 2008 | Online Presentations | Contributor(s): Paul L. McEuen

Carbon takes many forms, from precious diamonds to lowly graphite. Surprisingly, it is the latter that is the most prized by nano physicists. Graphene, a single layer of graphite, can serve as an …

https://nanohub.org/resources/4398

Bionanotechnology: a different perspective

30 Apr 2008 | Online Presentations | Contributor(s): Murali Sastry

The study of the synthesis, exotic properties, assembly/packaging and potential commercial application of nanomaterials is an extremely important topic of research that is expected to have …

https://nanohub.org/resources/4402

Introduction to Coulomb Blockade Lab

31 Mar 2008 | Teaching Materials | Contributor(s): Bhaskaran Muralidharan, Xufeng Wang, Gerhard Klimeck

The tutorial is based on the Coulomb Blockade Lab available online at Coulomb Blockade Lab. Students are introduced to the concepts of level broadening and charging energies in artificial atoms …

https://nanohub.org/resources/4231

Coulomb Blockade Simulation

05 Jul 2006 | Tools | Contributor(s): Xufeng Wang, Bhaskaran Muralidharan, Gerhard Klimeck

Simulate Coulomb Blockade through Many-Body Calculations in a single and double quantum dot system

https://nanohub.org/resources/coulombsim

Introduction to Quantum Dot Lab

31 Mar 2008 | Online Presentations | Contributor(s): Sunhee Lee, Hoon Ryu, Gerhard Klimeck

The nanoHUB tool "Quantum Dot Lab" allows users to compute the quantum mechanical "particle in a box" problem for a variety of different confinement shapes, such as boxes, ellipsoids, disks, and …

https://nanohub.org/resources/4194

Quantum Dot Spectra, Absorption, and State Symmetry: an Exercise

30 Mar 2008 | Teaching Materials | Contributor(s): Gerhard Klimeck

The tutorial questions based on the Quantum Dot Lab v1.0 available online at Quantum Dot Lab. Students are asked to explore the various different quantum dot shapes, optimize the intra-band …

https://nanohub.org/resources/4203

Nanoelectronic Modeling: Multimillion Atom Simulations, Transport, and HPC Scaling to 23,000 Processors

07 Mar 2008 | Online Presentations | Contributor(s): Gerhard Klimeck

Future field effect transistors will be on the same length scales as “esoteric” devices such as quantum dots, nanowires, ultra-scaled quantum wells, and resonant tunneling diodes. In those …

https://nanohub.org/resources/3988

MCW07 Physics of Contact Induced Current Asymmetry in Transport Through Molecules

25 Feb 2008 | Online Presentations | Contributor(s): Bhaskaran Muralidharan, Owen D. Miller, Neeti Kapur, Avik Ghosh, Supriyo Datta

We first outline the qualitatively different physics involved in the charging-induced current asymmetries in molecular conductors operating in the strongly coupled (weakly interacting) …

https://nanohub.org/resources/3073