Advertisement

Effects of Electron-Hole Correlations on Radiative Recombination of Donor-Acceptor Pairs in Polar Semiconductors

  • E. Kartheuser
  • A. Babcenco
  • R. Evrard

Abstract

A variational calculation of the effective-mass electronic states is presented for donor-acceptor (DA) pairs including electron-hole correlations and electron-phonon interactions. The calculations are carried out for unequal electron and hole effective masses. Expressions for the energy levels are obtained in terms of integrals containing trigonometric functions. The variational parameters for the orbital radii and for the electron-hole correlation are determined as a function of the D-A distance. The theory is applied to the zero-phonon spectra of D-A pairs in GaP and in ZnSe and a comparison is made with previous theoretical works. The contribution due to electron-hole correlation increases at small D-A distance and is found to be about 10 meV for GaP.

Keywords

Radiative Recombination Adiabatic Approximation Orbital Radius Pair Distance Pair Energy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    P.J. Dean, Progress in Solid State Chemistry (Pergamon Press, N.Y., 1973 ) 8, p. 1.Google Scholar
  2. 2.
    P.J. Wiesner, R.A. Street and H.D. Wolf, Physical Review Letters 35, 1366 (1975).ADSCrossRefGoogle Scholar
  3. 3.
    H. Tews, H. Venghaus and P.J. Dean, Physical Review B 19, 5178 (1979).ADSCrossRefGoogle Scholar
  4. 4.
    E. Kartheuser, R. Evrard and F. Williams, Physical Review B 21, 648 (1980) and references ther ein.Google Scholar
  5. 5.
    H. Fröhlich, H. Pelzer and S. Zieman, Philosophical Magazine 41, 221 (1950).MATHGoogle Scholar
  6. 6.
    Detailed expressions for the total energy of the D-A pairs as a function of the variational parameters a, α, λ, β will be published elsewhere.Google Scholar

Copyright information

© Springer Science+Business Media New York 1981

Authors and Affiliations

  • E. Kartheuser
    • 1
  • A. Babcenco
    • 1
  • R. Evrard
    • 1
  1. 1.Institut de PhysiqueUniversité de LiègeLiègeBelgium

Personalised recommendations