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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.
Illinois ABE 446 Lecture 3: Quantum Dots and Polymers
11 Feb 2010 | Teaching Materials | Contributor(s): Kaustubh Bhalerao
2005 Molecular Conduction and Sensors Workshop
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25 May 2005 | Workshops
This is the 3rd in a series of annual workshops on Molecular Conduction. The prior workshops have been at Purdue University, W. Lafayette, IN (2003) and Nothwestern University, Evanston, IL...
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 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...
A MATLAB code for Hartree Fock calculation of H-H ground state bondlength and energy using STO-4G
5.0 out of 5 stars
08 Aug 2006 | Downloads | Contributor(s): Amritanshu Palaria
Hartree Fock (HF) theory is one of the basic theories underlying the current understanding of the electronic structure of materials. It is a simple non-relativistic treatment of many electron...
Active Photonic Nanomaterials: From Random to Periodic Structures
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
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...
Coulomb Blockade Simulation
31 Mar 2008 | Tools | Contributor(s): Xufeng Wang, Bhaskaran Muralidharan, Gerhard Klimeck
Simulate Coulomb Blockade through Many-Body Calculations in a single and double quantum dot system
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...
Development of a Nanoelectronic 3-D (NEMO 3-D ) Simulator for Multimillion Atom Simulations and Its Application to Alloyed Quantum Dots
14 Jan 2008 | Papers | Contributor(s): Gerhard Klimeck, Timothy Boykin
Material layers with a thickness of a few nanometers are common-place in today’s semiconductor
devices. Before long, device fabrication methods will reach a point at which the other two...
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...