Effect of the matrix on the 1.5 μm photoluminescence of Er-doped silicon quantum dots

Erbium doped nanocrystalline silicon thin films were produced by reactive magnetron r.f sputtering. Their structural and chemical properties were studied by micro-Raman, spectroscopic ellipsometry and Rutherford backscattering spectroscopy. Films with different crystalline fraction and crystallite s...

ver descrição completa

Detalhes bibliográficos
Autor principal: Cerqueira, M.F. (author)
Outros Autores: Stepikhova, M. (author), Losurdo, M. (author), Monteiro, T. (author), Soares, M.J. (author), Peres, M. (author), Neves, A. (author), Alves, E. (author)
Formato: article
Idioma:eng
Publicado em: 2012
Assuntos:
Texto completo:http://hdl.handle.net/10773/6636
País:Portugal
Oai:oai:ria.ua.pt:10773/6636
Descrição
Resumo:Erbium doped nanocrystalline silicon thin films were produced by reactive magnetron r.f sputtering. Their structural and chemical properties were studied by micro-Raman, spectroscopic ellipsometry and Rutherford backscattering spectroscopy. Films with different crystalline fraction and crystallite size were deposited by changing the deposition parameters. The impact of the composition and structure of Erbium ions environment on the 1.5 μm photoluminescence is discussed.