Crystal Size and Crystalline Volume Fraction Effects on the Erbium Emission of nc-Si:Er Grown by r.f. Sputtering
Abstract:Erbium-doped low-dimensional Si films with different microstructures were grown by reactive magnetron sputtering on glass substrates by varying the deposition parameters. Their structure and chemical composition were studied by micro-Raman and Rutherford backscattering spectrometry, respectively. In this contribution the Erbium emission is studied as a function of nanocrystalline fraction and average crystal sizes and also as a function of the matrix chemical composition. We discuss the temperature dependence of the Er3+ emission as well as the possible explanations of the low Er active fraction.
Document Type: Research Article
Publication date: April 1, 2010
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