Incorporation and optical activation of erbium in strained silicon-germanium structures

M. Q. Huda, A. R. Peaker

Research output: Contribution to journalArticlepeer-review

Abstract

Erbium has been incorporated in strained Si/Si0.87Ge0.13/Si multiple quantum well structures with a density of 1018 cm-3. The process of ion implantation was used. Samples were amorphized by silicon implantation at liquid nitrogen temperature following the erbium implant. Recrystallization and optical activation of erbium atoms were achieved simultaneously by low temperature annealings in the range of 550-650°C. Detailed study on this low temperature window for erbium activation has been done. Reduction or complete elimination of erbium luminescence was observed for recrystallized samples having an additional step of rapid thermal annealing. It was shown that the uncontrolled sharp quenching of temperature that follows the rapid thermal annealing process deteriorates the sample structure and the erbium luminescence.

Original languageEnglish
Pages (from-to)1927-1930
Number of pages4
JournalSolid-state electronics
Volume45
Issue number11
DOIs
Publication statusPublished - Nov 2001

Keywords

  • Erbium
  • Luminescence
  • Optical activation
  • Silicon-germanium

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