Reflectivity Studies of Trion (X-) and Exciton (X) States in ZnSe/(Zn,Mg)(S,Se) QWs

Abstract

The oscillator strength of negatively charged exciton (trion) in ZnSe/(Zn,Mg)(S,Se) quantum-well structures with n-type modulation doping is studied by reflection spectroscopy as a function of electron concentration and temperature. The trion oscillator strength is found to increase linearly with increasing electron concentration up to 6 x 10(exp10) cm(exp-2). The effect of oscillator strength "shearing" between the exciton and trion states is observed. The value of the oscillator strength shearing is found to be not more than 20%.

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Document Details

Document Type
Technical Report
Publication Date
Jun 23, 2000
Accession Number
ADP013071

Entities

People

  • D. R. Yakovlev
  • G. A. Astakhov
  • R. A. Suris
  • V. P. Kochereshko
  • W. Ossau

Organizations

  • Russian Academy of Sciences

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplitude
  • Electron Energy
  • Electron Scattering
  • Electrons
  • Energy
  • Excitons
  • Fermi Levels
  • Hard Copy
  • Optical Properties
  • Oscillators
  • Quantum Wells
  • Reflectivity
  • Resonance
  • Semiconductors
  • Spectra
  • Technical Information Centers
  • Two Dimensional

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
  • Structural Dynamics.

Technology Areas

  • Microelectronics
  • Quantum Computing
  • Quantum Science - Quantum Dots