Theoretical Investigation of Auger Recombination in Spherical Quantum Dots

Abstract

The principal mechanisms of Auger recombination (AR) of nonequilibrium carriers in spherical quantum dots (QDs) are investigated theoretically. It is shown that there exist two Auger recombination mechanisms of (1) quasithreshold and (2) thresholdless types. These mechanisms originate from the existence of barriers but have different nature. The quasithreshold mechanism is caused by confinement of carriers within the region of a quantum dot which makes the quasimomentum conservation law approximate and enhances AR process. With increase of the dot radius this process turns to the threshold one. The thresholdless mechanism relates to the violation of the momentum conservation law at the heteroboundary and disappears with the radius tending to infinity.

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Document Details

Document Type
Technical Report
Publication Date
Jun 23, 2000
Accession Number
ADP013107

Entities

People

  • A. V. Pozdnyakov
  • Anatoli Polkovnikov
  • E. B. Dogonkine
  • V. N. Golovatch

Organizations

  • Russian Academy of Sciences

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Angular Momentum
  • Band Structures
  • Bulk Semiconductors
  • Electron Electron Interactions
  • Electrons
  • Energy Bands
  • Equations
  • Momentum
  • Perturbation Theory
  • Quantum Dots
  • Quantum Numbers
  • Quantum Properties
  • Quantum Wires
  • Semiconductors
  • Spin-Orbit Interaction
  • Valence Bands
  • Wave Functions

Readers

  • Fluid Dynamics.
  • Molecular Photonics/Laser Physics
  • Nanoscale Plasmonic Nanotechnology

Technology Areas

  • Quantum Computing