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Multimodal electronic-vibronic spectra of luminescence in ion-implanted silica layers
Institute of Physics, University of Rostock, Universitätsplatz 3, D-18051 Rostock, Germany.
2007 (English)In: Journal of Luminescence, ISSN 0022-2313, E-ISSN 1872-7883, Vol. 122-123, 743-746 p.Article in journal (Refereed) Published
Abstract [en]

Thermally oxidized SiO2 layers of 100 and 500 nm thickness have been implanted by oxygen and sulfur ions with a dose of 3×1016 and 5×1016 ions/cm2, respectively, leading to an atomic dopant fraction of about 4 at.% at the half depth of the SiO2 layers. The cathodoluminescence spectra of oxygen and sulfur implanted SiO2 layers show besides characteristic bands a sharp and intensive multimodal structure beginning in the green region at 500 nm over the yellow-red region extending to the near IR measured up to 820 nm. The energy step differences of the sublevels amount on average 120 meV and indicate vibration associated electronic states, probably of O2-interstitial molecules, as we could demonstrate by a respective configuration coordinate model.

Place, publisher, year, edition, pages
2007. Vol. 122-123, 743-746 p.
Keyword [en]
Cathodoluminescence, Defect luminescence, Vibronic Spectra, Photonic Crystals
National Category
Atom and Molecular Physics and Optics
URN: urn:nbn:se:umu:diva-53991DOI: 10.1016/j.jlumin.2006.01.276OAI: diva2:514817
Available from: 2012-04-11 Created: 2012-04-10 Last updated: 2012-05-22Bibliographically approved

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Salh, Roushdey
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