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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.
A Gentle Introduction to Nanotechnology and Nanoscience
4.5 out of 5 stars
13 Feb 2006 | Online Presentations | Contributor(s): Mark A. Ratner
While the Greek root nano just means dwarf, the nanoscale has become a giant focus of contemporary science and technology. We will examine the fundamental issues underlying the excitement...
Active Photonic Nanomaterials: From Random to Periodic Structures
0.0 out of 5 stars
06 Feb 2006 | Online Presentations | Contributor(s): Hui Cao
Active photonic nanomaterials, which have high gain or large
nonlinearity, are essential to the development of nanophotonic
devices and circuits. In this talk, I will provide a review of our...
Atomic Force Microscopy
4.0 out of 5 stars
29 Nov 2005 | Online Presentations | Contributor(s): Arvind Raman
Atomic Force Microscopy (AFM) is an indispensible tool in nano science for the fabrication, metrology, manipulation, and property characterization of nanostructures. This tutorial reviews some of...
Atomistic Alloy Disorder in Nanostructures
26 Feb 2007 | Online Presentations | Contributor(s): Gerhard Klimeck
Electronic structure and quantum transport simulations are typically performed in perfectly ordered semiconductor structures. Bands and modes are defined resulting in quantized conduction and...
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...
Bandstructure in Nanoelectronics
5.0 out of 5 stars
01 Nov 2005 | Online Presentations | Contributor(s): Gerhard Klimeck
This presentation will highlight, for nanoelectronic device examples, how the effective mass approximation breaks down and why the quantum mechanical nature of the atomically resolved material...
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...
BME 695L Lecture 5: Nanomaterials for Core Design
03 Oct 2011 | Online Presentations | Contributor(s): James Leary
See references below for related reading.
5.1.1 core building blocks
Control of Exchange Interaction in a Double Dot System
13 Jul 2004 | Online Presentations | Contributor(s): Mike Stopa
As Rolf Landauer observed in 1960, information is physical. As a consequence, the transport and processing of information must obey the laws of physics. It therefore makes sense to base the laws...
Designing Nanocomposite Materials for Solid-State Energy Conversion
28 Dec 2005 | Online Presentations | Contributor(s): Timothy D. Sands
New materials will be necessary to break through today's performance envelopes for
solid-state energy conversion devices ranging from LED-based solid-state white lamps to
Designing Nanocomposite Thermoelectric Materials
08 Nov 2005 | Online Presentations | Contributor(s): Timothy D. Sands
This tutorial reviews recent strategies for designing high-ZT nanostructured materials, including superlattices, embedded quantum dots, and nanowire composites. The tutorial highlights the...
E304 L8.1.3: Nanophotonics - Quantum Dots
15 Jun 2016 | Online Presentations
Engineering at the nanometer scale: Is it a new material or a new device?
06 Nov 2007 | Online Presentations | Contributor(s): Gerhard Klimeck
This seminar will overview NEMO 3D simulation capabilities and its deployment on the nanoHUB as well as an overview of the nanoHUB impact on the community.
Engineering Nanomedical Systems
16 Nov 2007 | Online Presentations | Contributor(s): James Leary
This tutorial will cover general problems and approaches to the design of engineered nanomedical systems. An example to be covered is the engineering design of programmable multilayered...
14 Mar 2006 | Online Presentations | Contributor(s): James Leary
This tutorial discusses general problems and approaches to the design of engineered nanomedical systems. One example given is the engineering design of programmable multilayered nanoparticles...
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 inter-dot couplings of the electronic states in a single InGaAs quantum dot molecule. The experimentally observed...
Finite Size Scaling and Quantum Criticality
02 Jan 2008 | Online Presentations | Contributor(s): Sabre Kais
In statistical mechanics, the finite size scaling method provides a systematic way to extrapolate information about criticality obtained from a finite system to the thermodynamic limit. For...
HPC and Visualization for multimillion atom simulations
20 Jun 2005 | Online Presentations | Contributor(s): Gerhard Klimeck
This presentation gives an overview of the HPC and visulaization efforts involving multi-million atom simulations for the June 2005 NSF site visit to the Network for Computational Nanotechnology.
Illinois ECE598XL Semiconductor Nanotechnology - 3 - Quantum Dots: Formation
27 Jun 2011 | Online Presentations | Contributor(s): Xiuling Li
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...