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Optically active erbium-oxygen complexes in GaAs
Department of Physics, University of Aveiro.
School of Physics, University of Exeter.
School of Natural Science, University of Newcastle upon Tyne.
School of Natural Science, University of Newcastle upon Tyne.
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2004 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 84, no 10, p. 1683-1685Article in journal (Refereed) Published
Abstract [en]

Density functional modeling of Er and Er-O complexes in GaAs show that Er impurities at the Ga site are not efficient channels for exciton recombination, but decorative O atoms play crucial roles in inhibiting Er precipitation and in creating the necessary conditions for electron-hole capture. Among the defects studied, the ErGaOAs and ErGa(OAs)2 models have the symmetry and carrier trap location close to the defect responsible for the strong 1.54 µm photoluminescence band in Er, O codoped GaAs.

Place, publisher, year, edition, pages
2004. Vol. 84, no 10, p. 1683-1685
National Category
Computational Mathematics
Research subject
Scientific Computing
Identifiers
URN: urn:nbn:se:ltu:diva-11152DOI: 10.1063/1.1668323ISI: 000189384900021Local ID: a0fa9320-bd93-11db-9be7-000ea68e967bOAI: oai:DiVA.org:ltu-11152DiVA, id: diva2:984101
Note
Validerad; 2004; 20070216 (kani)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Öberg, Sven

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