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Picosecond Imaging of Photoexcited-Carrier Transport in GaAs/AlGaAs Multiple Quantum Wells

  • D. R. Wake
  • H. W. Yoon
  • J. S. Preston
  • H. Morkoç
  • J. P. Wolfe
Conference paper
Part of the Springer Series in Chemical Physics book series (CHEMICAL, volume 53)

Abstract

Spatial and time-resolved induced bleaching at the heavy-hole exciton in a multiple quantum well structure is used to study ambipolar diffusive transport of a quasi-2D electron-hole plasma. The diffusivity is found to depend on excess carrier energy, lattice temperature, and carrier density. We attribute the density dependence to effects of screening and degeneracy at high density.

Keywords

Carrier Density Density Dependence Lattice Temperature Multiple Quantum Ambipolar Diffusivity 
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References

  1. 1.
    L. M. Smith, D. R. Wake, J. P. Wolfe, D. Levi, M. V. Klein, J. Klem, T. Henderson, and H. Morkoç, Phys. Rev. B 38, 5788 (1988)CrossRefADSGoogle Scholar
  2. 2.
    H. Hilmer, A. Forchel, S. Hansmann, M. Morohashi, E. Lopez, H. P. Meier, and K. Ploog, Phys Rev. 534, 10901 (1989).Google Scholar
  3. 3.
    W. van Roosbroeck, Phy. Rev. 91, 282 (1953).CrossRefADSGoogle Scholar
  4. 4.
    K. Hirakawa and H. Sakaki, Phys. Rev. B 33, 8291 (1986).CrossRefADSGoogle Scholar
  5. 5.
    N. W. Ashcroft and N. D. Mermin, Solid State Physics, ( Holt, Rinehart, and Winston, New York, 1976 ), p. 612.Google Scholar

Copyright information

© Springer-Verlag Berlin, Heidelberg 1990

Authors and Affiliations

  • D. R. Wake
    • 1
  • H. W. Yoon
    • 1
  • J. S. Preston
    • 1
  • H. Morkoç
    • 1
  • J. P. Wolfe
    • 1
  1. 1.Materials Research LaboratoryUniversity of Illinois at Urbana-ChampaignUrbanaUSA

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