Tags: quantum dots

More tags

Description

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.

All Categories (161-176 of 176)

  1. Plasmonic Nanophotonics: Coupling Light to Nanostructure via Plasmons

    4.5 out of 5 stars 

    Online Presentations | 03 Oct 2005 | Contributor(s):: Vladimir M. Shalaev

    The photon is the ultimate unit of information because it packages data in a signal of zero mass and has unmatched speed. The power of light is driving the photonicrevolution, and information technologies, which were formerly entirely electronic, are increasingly enlisting light to communicate...

  2. Parallel Computing for Realistic Nanoelectronic Simulations

    4.5 out of 5 stars 

    Online Presentations | 12 Sep 2005 | Contributor(s):: Gerhard Klimeck

    Typical modeling and simulation efforts directed towards the understanding of electron transport at the nanometer scale utilize single workstations as computational engines. Growing understanding of the involved physics and the need to model realistically extended devices increases the complexity...

  3. Quantum Dots

    4.5 out of 5 stars 

    Online Presentations | 21 Jul 2005 | Contributor(s):: Gerhard Klimeck

    Quantum Dots are man-made artificial atoms that confine electrons to a small space. As such, they have atomic-like behavior and enable the study of quantum mechanical effects on a length scale that is around 100 times larger than the pure atomic scale. Quantum dots offer application...

  4. Muhammad Usman

    Muhammad Usman was graduated from the Electrical & Computer Engineering Department of Purdue University in August 2010. His PhD thesis was theoretical modelling and simulations of InGaAs/GaAs...

    https://nanohub.org/members/9702

  5. Nanomaterials: Quantum Dots, Nanowires and Nanotubes

    4.5 out of 5 stars 

    Online Presentations | 15 Jul 2005 | Contributor(s):: Timothy D. Sands

    What is a quantum dot? What is a nanowire? What is a nanotube? Why are these interesting and what are their potential applications? How are they made? This presentation is intended to begin to answer these questions while introducing some fundamental concepts such as wave-particle duality,...

  6. HPC and Visualization for multimillion atom simulations

    0.0 out of 5 stars 

    Online Presentations | 21 Jun 2005 | 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.

  7. 2005 Molecular Conduction and Sensors Workshop

    0.0 out of 5 stars 

    Workshops | 27 Jul 2005

    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 (2004). The workshop has been an informal and open venue for discussing new results, key challenges, and...

  8. SEQUAL 2.1 Source Code Download

    0.0 out of 5 stars 

    Downloads | 09 Mar 2005 | Contributor(s):: Michael McLennan

    SEQUAL 2.1 is a device simulation program that computes Semiconductor Electrostatics by Quantum Analysis. Given a device, SEQUAL will compute the electron density and the current density using a quantum mechanical, collisionless description of electron propagation. It was designed to be a...

  9. Single Electron Switching with Nano-Electromechanical Systems and Applications in Ion Channel Transport

    4.5 out of 5 stars 

    Online Presentations | 01 Nov 2004 | Contributor(s):: Robert H. Blick

    Taking classes in physics always starts with Newtonian mechanics. In reducing the size of the objects considered however the transition into the quantum mechanical regime has to occur. The 'mechanics' of quantum mechanics is best studied in nano-structured semiconductor systems often termed...

  10. Visualization of and Educational Tool for Quantum Dots

    0.0 out of 5 stars 

    Presentation Materials | 15 Aug 2004 | Contributor(s):: Aaron Christensen, Adrian Rios

    Quantum dots (QDs) are confined structures made of metals and semiconductors that are capable of containing free electrons.The ability to visualize these small devices is advantageous in determining probable electron orbitals and in observing information not easily conceived in raw datasets.

  11. Control of Exchange Interaction in a Double Dot System

    0.0 out of 5 stars 

    Online Presentations | 05 Feb 2004 | 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 of information processing and computation on the laws of physics and in particular on quantum...

  12. Quantum-dot Cellular Automata

    0.0 out of 5 stars 

    Online Presentations | 24 Nov 2003 | Contributor(s):: Craig S. Lent

    The multiple challenges presented by the problem of scaling transistor sizes are all related to the fact that transistors encode binary information by the state of a current switch. What is required is a new paradigm, still capable of providing general purpose digital computation, but which can...

  13. Gerhard Klimeck

    Gerhard Klimeck is the Elmore Chaired Professor of Electrical and Computer Engineering at Purdue University and co-directs nanoHUB and Chipshub. He is also Vice President for Academic Information...

    https://nanohub.org/members/3482

  14. BoseX' Quantum Electro Mechanical System

    Groups

    https://nanohub.org/groups/bosexqems

  15. NEMO 3D source code distribution and user forum

    Groups

    This group is for those authorized to download the NEMO 3D source code. Links to the source are provided as well as updates on new versions. In order to access this group, you must be approved by...

    https://nanohub.org/groups/nemo_3d_distribution

  16. Quantum Dot Solar Cells (QDSC) First-Year Engineering Projects (SAMPLE)

    Groups

    Welcome to this nanoHUB group page. This group is created for people interested in learning about the Quantum Dot Solar Cells (QDSC) Project. To access QDSC project related...

    https://nanohub.org/groups/qdsc_sampleproject