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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.

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  1. Venkata Abhinav Korada

    https://nanohub.org/members/134147

  2. TE/TM polarisation response of InAs/GaAs quantum dot bilayers

    Presentation Materials | 22 Oct 2015 | Contributor(s):: Muhammad Usman

    Quantum dot bilayers are strong candidates for the design of telecom devices working at 1300 nm wavelength range. Here we analyse - both experimentally and theoretically - their optical and polarisation properties.  

  3. Ashutosh Manohar

    https://nanohub.org/members/128102

  4. DEBI PRASAD PANDA

    I completed my Ph.D. from the IIT Bombay in 2019. My Ph.D. research work was focused on the growth and characterizations of In(Ga)As Quantum DOt Infrared Photodetectors. I joined TIFR Mumbai as...

    https://nanohub.org/members/126180

  5. Johnson Andrade

    https://nanohub.org/members/125925

  6. Fahad Al Mamun

    https://nanohub.org/members/125385

  7. Quantum Dots

    Online Presentations | 07 May 2015 | Contributor(s):: Sebastien Maeder, NACK Network

    OutlineIntroductionQuantum ConfinementQD SynthesisColloidal MethodsEpitaxial GrowthApplicationsBiologicalLight EmittersAdditionalApplications

  8. Structure and Morphology of Silicon-Germanium Thin Films

    Presentation Materials | 07 Feb 2015 | Contributor(s):: Brian Demczyk

    This presentation describes the growth of (Si,Ge & SiGe) thin films on Si and Ge (001) and (111) substrates by ultrahigh vacuum chemical vapor deposition (UHVCVD). Thin films were characterized structurally by conventional and high-resolution transmission electron microscopy (TEM) and...

  9. Jeremy Scher

    https://nanohub.org/members/109924

  10. Thien Minh Nguyen

    https://nanohub.org/members/109901

  11. Peng Zeng

    https://nanohub.org/members/104877

  12. Sarah White

    https://nanohub.org/members/99730

  13. Structure and Morphology of Silicon Germanium Thin Films

    Papers | 30 Dec 2013 | 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 chemical vapor deposition. These films spanned the range of + 4 % film-substrate lattice mismatch. A...

  14. Ali Khaledi Nasab

    I am Ali, MSc in Physics. I am working on modelling of QDs. I will start my PhD next fall (2014).

    https://nanohub.org/members/93425

  15. Radha Krishnan

    https://nanohub.org/members/92862

  16. How to start for solving for a single quantum dot in a p-n junction?

    Q&A|Closed | Responses: 0

    I have been assigned to build a simulator for a single quantum dot inside a p-n junction. I am supposed to find the eigenstates, absorption spectra. I have written the codes for a Single Quantum...

    https://nanohub.org/answers/question/1196

  17. What is the effective mass of electron in InN (Quantum Dot)?

    Q&A|Closed | Responses: 0

    I am working with InN QD. I need to know the actual electron effective mass in https://nanohub.org/answers/question/1193

  18. can anyone please help me by providing self consistent schrodinger poisson’s equation for 1.55um Quantum dot Laser?

    Q&A|Closed | Responses: 0

    I am working on Quantum Dot Laser. I need to know what is the appropriate Schrodinger Poisson’s equation for 1.55um QD Laser. I need to solve Schrodinger Poisson’s equation. I am...

    https://nanohub.org/answers/question/1192

  19. Why quantum dot simulation domain must contain multi-million atoms?

    Online Presentations | 11 Jan 2013 | Contributor(s):: Muhammad Usman

    The InGaAs quantum dots obtained from the self-assembly growth process are heavily strained. The long-range strain and piezoelectric fields significantly modifies the electronic structure of the quantum dots. This imposes a critical constraint on the minimum size of the simulation domain to study...

  20. Excited State Spectroscopy of a Quantum Dot Molecule

    Online Presentations | 11 Jan 2013 | 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 excitonic spectrum by Krenner et al (Phys. Rev. Lett. 94 057402, 2005) is quantitatively reproduced,...