quantum dot - definizione. Che cos'è quantum dot
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  3. quantum dot

Cosa (chi) è quantum dot - definizione


Quantum dot         
  • s2cid=4400136}}</ref>
  • Cadmium sulfide quantum dots on cells
  • Fluorescence spectra of CdTe quantum dots of various sizes. Different sized quantum dots emit different color light due to quantum confinement.
  • Idealized image of colloidal nanoparticle of lead sulfide (selenide) with complete passivation by oleic acid, oleyl amine, and hydroxyl ligands (size ≈5nm)
  • the figure is a simplified representation showing the excited electron and the hole in an exciton entity and the corresponding energy levels. The total energy involved can be seen as the sum of the band gap energy, the energy involved in the Coulomb attraction in the exciton, and the confinement energies of the excited electron and the hole
  • As}})
  • Quantum Dots with gradually stepping emission from violet to deep red
  • Splitting of energy levels for small quantum dots due to the quantum confinement effect. The horizontal axis is the radius, or the size, of the quantum dots and a<sub>b</sub>* is the Exciton Bohr radius.
  • link=File:QuantumDot_wf.gif
NANO-SCALE ELECTRONIC DEVICE SUBJECT TO QUANTUM EFFECTS
Quantum dots; Quantum Dot; Nanocrystallites; Artificial atom; Semiconductor nanocrystal; Quantum Dots; QD-LED; Q-LED; Potential applications of quantum dots; Quantum dot dye; Quantum dot photodetectors; Quantum dot photodetector
Quantum dots (QDs) are semiconductor particles a few nanometres in size, having optical and electronic properties that differ from those of larger particles as a result of quantum mechanics. They are a central topic in nanotechnology.
https://en.wikipedia.org/wiki/Quantum_dot
quantum dot         
  • s2cid=4400136}}</ref>
  • Cadmium sulfide quantum dots on cells
  • Fluorescence spectra of CdTe quantum dots of various sizes. Different sized quantum dots emit different color light due to quantum confinement.
  • Idealized image of colloidal nanoparticle of lead sulfide (selenide) with complete passivation by oleic acid, oleyl amine, and hydroxyl ligands (size ≈5nm)
  • the figure is a simplified representation showing the excited electron and the hole in an exciton entity and the corresponding energy levels. The total energy involved can be seen as the sum of the band gap energy, the energy involved in the Coulomb attraction in the exciton, and the confinement energies of the excited electron and the hole
  • As}})
  • Quantum Dots with gradually stepping emission from violet to deep red
  • Splitting of energy levels for small quantum dots due to the quantum confinement effect. The horizontal axis is the radius, or the size, of the quantum dots and a<sub>b</sub>* is the Exciton Bohr radius.
  • link=File:QuantumDot_wf.gif
NANO-SCALE ELECTRONIC DEVICE SUBJECT TO QUANTUM EFFECTS
Quantum dots; Quantum Dot; Nanocrystallites; Artificial atom; Semiconductor nanocrystal; Quantum Dots; QD-LED; Q-LED; Potential applications of quantum dots; Quantum dot dye; Quantum dot photodetectors; Quantum dot photodetector
<physics> (Or "single-electron transistor") A location capable of containing a single electrical charge; i.e., a single electron of Coulomb charge. Physically, quantum dots are nanometer-size semiconductor structures in which the presence or absence of a quantum electron can be used to store information. See also: quantum cell, quantum cell wire, {quantum-dot cellular automata}. http://www-mtl.mit.edu/MTL/bulletin/v6n2/Kumar.html. ["Quantum Dot Heterostructures", D. Bimberg, et al, John Wiley & Sons Ltd., Dec 1998]. (2001-07-17)
Scanning quantum dot microscopy         
  • The relation between the QD potential at '''r''' and the surface potential at '''r'''' is described by a boundary value problem of electrostatics.
Scanning quantum dot microscopy (SQDM) is a scanning probe microscopy (SPM) that is used to image nanoscale electric potential distributions on surfaces. The method quantifies surface potential variations via their influence on the potential of a quantum dot (QD) attached to the apex of the scanned probe.
https://en.wikipedia.org/wiki/Scanning_quantum_dot_microscopy
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