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Tags: quantum dots

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 (1-20 of 189)

  1. Jeremy Scher

    http://nanohub.org/members/109924

  2. Peng Zeng

    http://nanohub.org/members/104877

  3. 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 50-50 silicon-germanium alloys were deposited on single crystal silicon and germanium (001) and (111) substrates by ultrahigh vacuum...

    http://nanohub.org/resources/20123

  4. Ali Khaledi Nasab

    I am Ali, MSc of Physics. I am working on modelling of QDs. I will start my PhD next fall (2014). Now I am searching to find a proper 3D model to investigate the QDs.

    http://nanohub.org/members/93425

  5. 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 http://nanohub.org/answers/question/1193

  6. 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...

    http://nanohub.org/resources/12686

  7. Prasad Sarangapani

    Prasad Sarangapani is a PhD candidate in the Department of Electrical and Computer Engineering at Purdue University. He is a member of the NEMO (Nanoelectronics Modeling Tool)...

    http://nanohub.org/members/72949

  8. 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.

    http://nanohub.org/resources/qudosim

  9. Valerie Ding

    http://nanohub.org/members/69202

  10. 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.

    http://nanohub.org/resources/14705

  11. Quantum Dot based Photonic Devices

    01 Apr 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...

    http://nanohub.org/resources/13532

  12. TÃœLAY OCAK

    http://nanohub.org/members/62481

  13. 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,...

    http://nanohub.org/members/61913

  14. 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.

    http://nanohub.org/resources/12593

  15. Polarization Response of Multi-layer 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,...

    http://nanohub.org/resources/12312

  16. 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...

    http://nanohub.org/resources/12057

  17. 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 solid-state physics without semiconductor heterostructures. Semiconductor heterostructures and especially double heterostructures, including quantum...

    http://nanohub.org/resources/11436

  18. Illinois ECE598XL Semiconductor Nanotechnology - 3 - Quantum Dots: Formation

    27 Jun 2011 | Online Presentations | Contributor(s): Xiuling Li

    http://nanohub.org/resources/11404

  19. Maksym Plakhotnyuk

    http://nanohub.org/members/55289

  20. with what equations I can calculate photoluminescence spectra of Quantum Dots?

    Closed | Responses: 0

    I want to find theoretically photo and electro luminescence of self assembled InAs/GaAs QDs in a PIN diode...

    http://nanohub.org/answers/question/779

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