Utilize este identificador para referenciar este registo: http://hdl.handle.net/1822/13956

TítuloStudy of the oxygen role in the photoluminescence of erbium doped nanocrystalline silicon embedded in a silicon amorphous matrix
Autor(es)Cerqueira, M. F.
Losurdo, M.
Monteiro, T.
Stepikhova, M.
Soares, M. J.
Peres, M.
Alves, E.
Conde, O.
Palavras-chaveNanocrystalline silicon
Erbium doping
Thin films
Optical properties
silicon
Raman scattering
sputtering
defects
microcrystallinity
nanocrystals
luminescence
Data2006
EditoraElsevier
RevistaJournal of Non-Crystalline Solids
Resumo(s)We have produced and studied erbium doped nanocrystalline silicon thin films with different oxygen and hydrogen content in order to evaluate the influence of the matrix on the Er3+ emission and on the 0.89 eV and 1.17 eV bands. Films were grown by reactive magnetron sputtering on glass substrates under several different conditions (RF power, Er content and gas mixture composition) in order to obtain different microstructures. The structural parameters and the chemical composition of the samples were obtained by X-ray in the grazing incidence geometry, Raman spectroscopy and Rutherford back scattering analysis. Using X-ray technique combined with Raman spectroscopy information on the crystalline fraction and the average crystallite size of Si nanocrystals was obtained. Dependence of the 0.89 eV and 1.17 eV peaks in Si heterogeneous matrixes on the films crystallinity and O/H ratio has been analyzed
Tipoarticle
URIhttp://hdl.handle.net/1822/13956
DOI10.1016/j.jnoncrysol.2005.09.045
ISSN0022-3093
Versão da editorahttp://www.sciencedirect.com/science/article/pii/S0022309306002067
Arbitragem científicayes
AcessoopenAccess
Aparece nas coleções:CDF - CEP - Artigos/Papers (with refereeing)
CDF - FMNC - Artigos/Papers (with refereeing)

Ficheiros deste registo:
Ficheiro Descrição TamanhoFormato 
ORPL-SiEr-JNCS2006.pdfDocumento principal186,56 kBAdobe PDFVer/Abrir

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu Currículo DeGóis