Bimolecular Recombination Kinetics of an Exciton-Trion Gas

Abstract

This report discusses the use of rate equations to describe kinetic processes in highly photoexcited semiconductors. In this description, the pairs of electrons and holes generated by photons from the laser illumination form a multicomponent plasma whose time evolution is governed by gas dynamics and recombination processes, leading to a variety of secondary components such as neutral excitons and so-called trions, which consist of exciton-electron and exciton-hole bound states. The recombination is modeled as bimolecular for all carrier species, allowing the system of rate equations to be simulated numerically.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2015
Accession Number
ADA621328

Entities

People

  • A. Glen Birdwell
  • Frank Crowne

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Band Structures
  • Charge Carriers
  • Differential Equations
  • Dynamics
  • Electron Density
  • Electron Holes
  • Electrons
  • Equations
  • Excitons
  • Free Electrons
  • Kinetics
  • Mobility
  • Simulations
  • Steady State
  • Three Dimensional
  • Time Dependence
  • Two Dimensional

Readers

  • Combustion science or combustion engineering.
  • Molecular Photonics/Laser Physics
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.

Technology Areas

  • Directed Energy
  • Microelectronics