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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.
Analytically how to find the energy states for an ellipsoidal Quantum Dot?
Closed | Responses: 0
How do I interpret CV measurements of self-assembled quantum dot stacks?
I’ve been reading papers where CV measurements of stacks of self-assembled quantum dots are used to characterise the energy levels in the dots. I am at a loss to interpret the plots. For...
Open | Responses: 1
What I want to do is building an aluminum quantum dot coupled to
aluminum leads to observe Coulomb Blockade. To form the tunnel barriers
we oxidize the Al in a plasma without any detailed...
What is the effective mass of electron in InN (Quantum Dot)?
I am working with InN QD. I need to know the actual electron effective mass in http://nanohub.org/answers/question/1193
with what equations I can calculate photoluminescence spectra of Quantum Dots?
I want to find theoretically photo and electro luminescence of self assembled InAs/GaAs QDs in a PIN diode...