Light emission from erbium doped Si1-xGex heterostructures

J. H. Evans-Freeman*, A. T. Naveed, M. Q. Huda, A. R. Peaker, D. C. Houghton, A. C. Wright

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

UHVCVD-grown Si0.87Ge0.13/Si heterostructures have been implanted with erbium, and photoluminescence and electroluminescence centred on 1.54 μm have been studied. Implantation conditions were chosen so that the erbium concentration profile was flat over the spatial location of the SiGe quantum well region. We demonstrate that the technology of implantation and regrowth is feasible even when Si/SiGe interfaces are present. We have obtained more intense photoluminescence from erbium implanted SiGe heterostructures than that from a silicon layer implanted with a higher erbium dose. We report forward bias electroluminescence from the Er doped SiGe/Si heterostructures; the photoluminescence and electroluminescence from these structures demonstrates that the detailed mechanism of excitation is different from the Er:Si case.

Original languageEnglish
Pages (from-to)133-138
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume533
Publication statusPublished - 1998
EventProceedings of the 1998 MRS Spring Symposium - San Francisco, United States
Duration: 13 Apr 199817 Apr 1998

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