Publication date
January 2001
DOI Publisher
Elsevier BV:PO Box 211, 1000 AE Amsterdam Netherlands:011 31 20 4853757, 011 31 20 4853642, 011 31 20 4853641, EMAIL: nlinfo-f@elsevier.nl, INTERNET: http://www.elsevier.nl, Fax: 011 31 20 4853598 ISSN
0925-3467Abstract
Abstract The optical properties of Si/SiO2 superlattices (SLs) as a function of the Si layer thickness have been, for the first time, theoretically investigated. Through ab initio calculations we consider fully passivated structures, the presence of O vacancy at the Si/SiO2 interface or in the SiO2 matrix. We find that quantum confined states and O-related defect states play a key role in the experimentally observed visible luminescence in Si/SiO2 confined systems
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