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Room-temperature luminescence from Si Ge single quantum well diodes grown by molecular beam epitaxy

  • H. Presting
  • , T. Zinke
  • , O. Brux
  • , M. Gail
  • , G. Abstreiter
  • , H. Kibbel
  • , M. Jaros
  • Daimler-Benz AG
  • Technische Universität Berlin
  • Technical University of Munich
  • University of Newcastle upon Tyne

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Room-temperature electroluminescence (EL) in the near infrared (λ ≈ 1.3 μm) has been observed from Ge/Si/Ge/Si1 - xGex quantum well (QW) diodes grown by molecular beam epitaxy (MBE). The QWs are grown on a p+-doped 〈100〉-Si substrates and consist of two thin Ge wells separated by a thicker Si middle layer. The whole structure is embedded in Si0.85Ge0.15 alloy layers situated on both sides. The structure was designed by pseudopotential calculations with a view to ensuring stability of the interband luminescence up to room temperature. The observed spectra are in good agreement with our theoretical predictions.

Original languageEnglish
Pages (from-to)15-20
Number of pages6
JournalJournal of Crystal Growth
Volume157
Issue number1-4
DOIs
StatePublished - 2 Dec 1995

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