
Universal Behavior of Strain in Selfassembled Quantum Dots
05 May 2016  Downloads  Contributor(s): Hesameddin Ilatikhameneh, Tarek Ahmed Ameen, Gerhard Klimeck, Rajib Rahman
This resource contains the universal behavior strain files produced by Nemo5. Attached also a Matlab script that can utilize the these compact descriptive files to produce the full strain...
https://nanohub.org/resources/24150

Structure and Morphology of SiliconGermanium Thin Films
07 Feb 2015  Presentation Materials  Contributor(s): Brian Demczyk
This presentation describes the growth of (Si,Ge & SiGe) thin films on Si and Ge (001) and (111) substrates by ultrahigh vacuum chemical vapor deposition (UHVCVD). Thin films were...
https://nanohub.org/resources/21913

Structure and Morphology of Silicon Germanium Thin Films
30 Dec 2013  Papers  Contributor(s): Brian Demczyk
Single layer silicon and germanium films as well as nominally 5050 silicongermanium alloys were deposited on single crystal silicon and germanium (001) and (111) substrates by ultrahigh vacuum...
https://nanohub.org/resources/20123

Excited State Spectroscopy of a Quantum Dot Molecule
11 Jan 2013  Online Presentations  Contributor(s): Muhammad Usman
Atomistic electronic structure calculations are performed to study the coherent interdot couplings of the electronic states in a single InGaAs quantum dot molecule. The experimentally observed...
https://nanohub.org/resources/12686

Quantum Dot Quantum Computation Simulator
04 Aug 2012  Tools  Contributor(s): Brian Sutton
Performs simulations of quantum dot quantum computation using a model Hamiltonian with an onsite magnetic field and modulated interdot exchange interaction.
https://nanohub.org/resources/qudosim

NEMO5 Tutorial 5A: Devi ce Simulation  Quantum Dots
17 Jul 2012  Online Presentations  Contributor(s): Jean Michel D Sellier
This presentation introduces the capabilities of NEMO5 to simulate quantum dots.
https://nanohub.org/resources/14705

Quantum Dot based Photonic Devices
01 Apr 2012  Online Presentations  Contributor(s): Muhammad Usman
Deployment of nanometersized semiconductor quantum dots (QDs) in the active region of
photonic devices such as lasers, semiconductor optical amplifiers (SOA's), photodetectors etc.
for the...
https://nanohub.org/resources/13532

NEMO3D User Guide for Quantum Dot Simulations
29 Nov 2011  Papers  Contributor(s): M. Usman, Gerhard Klimeck
NEMO 3D is a large and complex simulator; and understanding of its source code requires considerable knowledge of quantum mechanics, condensed matter theory, and parallel programming.
https://nanohub.org/resources/12593

Polarization Response of Multilayer InAs Quantum Dot Stacks
25 Oct 2011  Online Presentations  Contributor(s): Muhammad Usman
Recent experimental measurements, without any theoretical guidance, showed that isotropic polarization response can be achieved by increasing the number of QD layers in a QD stack. In this work,...
https://nanohub.org/resources/12312

BME 695L Lecture 5: Nanomaterials for Core Design
03 Oct 2011  Online Presentations  Contributor(s): James Leary
See references below for related reading.
5.1 Introduction
5.1.1 core building blocks
5.1.2 functional...
https://nanohub.org/resources/12057

The History of Semiconductor Heterostructures Research: From Early Double Heterostructure Concept to Modern Quantum Dot Structures
11 Jul 2011  Online Presentations  Contributor(s): Zhores I. Alferov
It would be very difficult today to imagine solidstate physics without semiconductor heterostructures. Semiconductor heterostructures and especially double heterostructures, including quantum...
https://nanohub.org/resources/11436

Illinois ECE598XL Semiconductor Nanotechnology  3  Quantum Dots: Formation
27 Jun 2011  Online Presentations  Contributor(s): Xiuling Li
https://nanohub.org/resources/11404

Quantitative Modeling and Simulation of Quantum Dots
18 Apr 2011  Presentation Materials  Contributor(s): Muhammad Usman
Quantum dots grown by selfassembly 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

Tutorial 4b: Introduction to the NEMO3D Tool  Electronic Structure and Transport in 3D
29 Mar 2011  Online Presentations  Contributor(s): Gerhard Klimeck
Electronic Structure and Transport in 3D  Quantum Dots, Nanowires and UltraThin Body Transistors
https://nanohub.org/resources/11049

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) selfassembled quantum dot.
https://nanohub.org/resources/10751

SelfAssembled 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

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) selfassembled quantum dot.
https://nanohub.org/resources/10692

SelfAssembled 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

Modeling the quantum dot growth in the continuum approximation
12 Jan 2011  Papers  Contributor(s): Peter Cendula
Quantum dots can grow spontaneously during molecular beam epitaxy of
two materials with different lattice parameters, StranskiKrastanow growth mode.
We study a mathematical model based on the...
https://nanohub.org/resources/10365

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