Find information on common issues.
Ask questions and find answers from other users.
Suggest a new site feature or improvement.
Check on status of your tickets.
Quantum dots have a small, countable number of electrons confined in a small space. Their electrons are confined by having a tiny bit of conducting material surrounded on all sides by an insulating material. If the insulator is strong enough, and the conducting volume is small enough, then the confinement will force the electrons to have discrete (quantized) energy levels. These energy levels can influence the device behavior at a macroscopic scale, showing up, for example, as peaks in the conductance. Because of the quantized energy levels, quantum dots have been called "artificial atoms." Neighboring, weakly-coupled quantum dots have been called "artificial molecules."
Learn more about quantum dots from the many resources on this site, listed below. More information on Quantum dots can be found here.
What is the effective mass of electron in InN (Quantum Dot)?
Closed | Responses: 0
I am working with InN QD. I need to know the actual electron effective mass in InN QD. Is there any way of calculating effective mass of electron when band gap is unknown? I would be really grateful …
Excited State Spectroscopy of a Quantum Dot Molecule
Ranking is calculated from a formula comprised of user reviews and usage data. Learn more ›
11 Jan 2013 | Online Presentations | Contributor(s): Muhammad Usman
Atomistic electronic structure calculations are performed to study the coherent inter-dot couplings of the electronic states in a single InGaAs quantum dot molecule. The experimentally observed …
[Illinois]: Bioengineering Seminar Series: Engineering Quantum Dots for Multispectral Cancer Imaging
03 Jan 2013 | Online Presentations | Contributor(s): Andrew Smith
Video will be available in May 2013 Quantum dots are light-emitting nanocrystals that have emerged as a new class of fluorescent label for molecular and cellular imaging. These particles have …
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 on-site magnetic field and modulated inter-dot exchange interaction.
16, sophomore (grade 10) in high school
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.
Quantum Dot based Photonic Devices
19 Mar 2012 | Online Presentations | Contributor(s): Muhammad Usman
Deployment of nanometer-sized semiconductor quantum dots (QDs) in the active region of photonic devices such as lasers, semiconductor optical amplifiers (SOA's), photo-detectors etc. for the next …
emiley krystine herbert
'''---- == ^,,Hello My name's Emiley Krystine. I'm fifteen years old and i'm a freshmen in high school. I am very interested in science. My favorite subjects are Nanotechnology, Astrophysics, …
NEMO3D User Guide for Quantum Dot Simulations
29 Nov 2011 | Publications | 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.
Polarization Response of Multi-layer InAs Quantum Dot Stacks
20 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, we …
BME 695L Lecture 5: Nanomaterials for Core Design
14 Sep 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 cores 5.1.3 functionalizing the core surface 5.2 Ferric oxide …
The History of Semiconductor Heterostructures Research: From Early Double Heterostructure Concept to Modern Quantum Dot Structures
21 Jun 2011 | Online Presentations | Contributor(s): Zhores I. Alferov
It would be very difficult today to imagine solid-state physics without semiconductor heterostructures. Semiconductor heterostructures and especially double heterostructures, including quantum wells, …
Illinois ECE598XL Semiconductor Nanotechnology - 3 - Quantum Dots: Formation
15 Jun 2011 | Online Presentations | Contributor(s): Xiuling Li
with what equations I can calculate photoluminescence spectra of Quantum Dots?
I want to find theoretically photo and electro luminescence of self assembled InAs/GaAs QDs in a PIN diode structure. so far I calculate wave functions and energy levels of QD using 8 band k.p model. …
Quantitative Modeling and Simulation of Quantum Dots
16 Jul 2010 | Notes | Contributor(s): Muhammad Usman
Quantum dots grown by self-assembly 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 …
Tutorial 4b: Introduction to the NEMO3D Tool - Electronic Structure and Transport in 3D
23 Mar 2011 | Online Presentations | Contributor(s): Gerhard Klimeck
Electronic Structure and Transport in 3D - Quantum Dots, Nanowires and Ultra-Thin Body Transistors
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) self-assembled quantum dot.
Self-Assembled Quantum Dot Structure (pyramid)
01 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.
nanoHUB.org, a resource for nanoscience and nanotechnology, is supported by the National Science Foundation and other funding agencies.