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Efficient 1.54 µm light emission from Si/SiGe/Si: Er
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology.
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Surface and Semiconductor Physics .
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Surface and Semiconductor Physics .
2001 (English)In: Materials Science & Engineering: B. Solid-state Materials for Advanced Technology, ISSN 0921-5107, Vol. 81, no 1-3, 105-108 p.Article in journal (Refereed) Published
Abstract [en]

Si/SiGe/Si:Er:O-heterojunction bipolar transistor (HBT)-type light emitting devices with Er3+ ions incorporated in the collector region have been fabricated using layered structures prepared by differential molecular beam epitaxy (MBE). Intense light emission at 1.54 µm has been observed at room temperature by hot electron impact excitation at rather low injection current and applied voltage. Separate controls of the injection current and bias voltage make it possible to perform detailed electroluminescence (EL) studies that can not be done with conventional Si:Er light emitting diodes (LEDs). Saturation of the EL intensity occurs at very low current densities indicating a 100-fold increase of the effective excitation cross-section for Si/SiGe/Si:Er:O-HBTs compared with Si:Er-LEDs. © 2001 Elsevier Science B.V.

Place, publisher, year, edition, pages
2001. Vol. 81, no 1-3, 105-108 p.
Keyword [en]
Electroluminescence, Er, Heterojunction bipolar transistor, Impact excitation, Si, SiGe
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-47411DOI: 10.1016/S0921-5107(00)00671-1OAI: oai:DiVA.org:liu-47411DiVA: diva2:268307
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2011-01-13

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Du, Chun-XiaHansson, GöranNi, Wei-Xin

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The Institute of TechnologyDepartment of Physics, Chemistry and BiologySurface and Semiconductor Physics
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Engineering and Technology

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