Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Confinement effects and tunnelling through quantum dots.

Michel Lannoo1, Christophe Delerue, Guy Allan

  • 1Laboratoire Matériaux et Microélectronique de Provence, Institut Supérieur d'Electronique de la Méditerranée, Place Georges Pompidou, 88000 Toulon, France.

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
|March 18, 2003
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Confining Metastable Wurtzite HgTe for Infrared Optoelectronics.

ACS nano·2026
Same author

Robust and localised control of a 10-spin qubit array in germanium.

Nature communications·2025
Same author

Artificial Intelligence-Assisted Workflow for Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling.

Advanced materials (Deerfield Beach, Fla.)·2025
Same author

Monolayer-Defined Flat Colloidal PbSe Quantum Dots in Extreme Confinement.

Nano letters·2025
Same author

Enhanced Nanoscale Ge Concentration Oscillations in Si/SiGe Quantum Well through Controlled Segregation.

Nano letters·2025
Same author

Characterization of the Edge States in Colloidal Bi<sub>2</sub>Se<sub>3</sub> Platelets.

Nano letters·2024
Same journal

Inverse FIP effect plasma in the solar atmosphere: a synthesis of current understanding and new insights from AR 11967.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2026
Same journal

Signs of sulfur fractionation under high magnetic field strength.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2026
Same journal

First ionization potential fractionation of sulfur observed with spectral imaging of the coronal environment.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2026
Same journal

Chromospheric dynamics and turbulence regulate the solar FIP effect.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2026
Same journal

Exploring the link between wave activity in the photospheric velocity driver and the FIP bias in the solar corona.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2026
Same journal

Radiative hydrodynamic simulations of first ionization potential fractionation in solar flares.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2026
See all related articles

Theoretical advances in semiconductor quantum dots reveal quantum confinement effects on energy gaps. Calculations show conductance peaks for nanostructures are now predictable, and dielectric constants remain bulk-like for small nanostructures.

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Quantum Mechanics

Background:

  • Semiconductor quantum dots exhibit unique quantum confinement effects.
  • Understanding these effects is crucial for nanoscale electronic and optical applications.

Purpose of the Study:

  • To review recent theoretical advances in semiconductor quantum dot physics.
  • To elucidate the impact of quantum confinement on energy gaps.
  • To explore the calculation of conductance in nanostructures and dielectric properties.

Main Methods:

  • GW and Bethe-Salpeter calculations were employed to study quantum confinement.
  • Theoretical models were used to calculate conductance peaks for tunneling current.
  • Analysis of macroscopic dielectric constants in nanostructures was performed.

Related Experiment Videos

Main Results:

  • Excitonic gap in quantum dots closely matches the eigenvalue gap from single-particle approximations.
  • Predictive calculations for conductance peaks in nanostructures are now feasible.
  • Local dielectric constants retain bulk values in nanostructures, excluding surface layers.

Conclusions:

  • Theoretical frameworks accurately describe quantum confinement effects in semiconductor quantum dots.
  • Advanced calculations enable precise prediction of electronic transport properties.
  • Nanostructure dielectric properties are largely consistent with bulk materials, simplifying theoretical modeling.