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Excitons in ZnO Quantum Wells

Journal Article · · Physics of the Solid State
; ; ;  [1];  [2]
  1. St. Petersburg State University (Russian Federation)
  2. Centre de Recherche sur I’Hetero-Epitaxie et ses Applications-CNRS (France)
Reflectance and photoluminescence spectra of the ZnO/Zn{sub 0.78}Mg{sub 0.22}O structures with ZnO quantum wells and thick ZnO and Zn{sub 0.78}Mg{sub 0.22}O layers have been thoroughly investigated at different temperatures and excitation intensities and wavelengths. All the observed spectral lines have been identified. It has been established that the built-in electric field does not affect the spectrum as strongly as was expected. The built-in field is apparently effectively screened by the carriers that have migrated to the bands from donor and acceptor levels. The parameters determining the exciton properties in zinc oxide have been estimated.
OSTI ID:
22923038
Journal Information:
Physics of the Solid State, Journal Name: Physics of the Solid State Journal Issue: 12 Vol. 60; ISSN 1063-7834
Country of Publication:
United States
Language:
English

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