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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.
Synthesis and Characterization of CdSe Qunatum Dots
11 Jan 2017 | | Contributor(s):: Nicholas Blake
In this laboratory, students will study how surfactant-based chemistry can be used to synthesize CdSe quantum dots and study how the size of the quantum dots can be controlled by varying reaction time. The laboratory will demonstrate how the color of these quantum dots can be connected to...
Test for Quantum Dot Lab tool
09 Nov 2010 | | Contributor(s):: SungGeun Kim, Saumitra Raj Mehrotra
This test is aimed at self-learning students or instructors who may be engaged in teaching classes related to the quantum dot lab tool.The level of this test should not be difficult for a student who has gone through "the general tutorial to quantum dots,""the introductory tutorial to the...
Nanotechnology Animation Gallery
22 Apr 2010 | | Contributor(s):: Saumitra Raj Mehrotra, Gerhard Klimeck
Animations and visualization are generated with various nanoHUB.org tools to enable insight into nanotechnology and nanoscience. Click on image for detailed description and larger image download. Additional animations are also available Featured nanoHUB tools: Band Structure Lab. Carrier...
Illinois ABE 446 Lecture 3: Quantum Dots and Polymers
11 Feb 2010 | | Contributor(s):: Kaustubh Bhalerao
Introduction to Coulomb Blockade Lab
out of 5 stars
31 Mar 2008 | | Contributor(s):: Bhaskaran Muralidharan, Xufeng Wang, Gerhard Klimeck
The tutorial is based on the Coulomb Blockade Lab available online at Coulomb Blockade Lab. Students are introduced to the concepts of level broadening and charging energies in artificial atoms (single quantum dots) and molecules (coupled quantum dots).A tutorial level introduction to the...
Quantum Dot Spectra, Absorption, and State Symmetry: an Exercise
30 Mar 2008 | | Contributor(s):: Gerhard Klimeck
The tutorial questions based on the Quantum Dot Lab v1.0 available online at Quantum Dot Lab. Students are asked to explore the various different quantum dot shapes, optimize the intra-band absorption through geometry variations, and consider the concepts of state symmetry and eigenstates.NCN@Purdue