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|Title:||Erbium up conversion in SiO 2 - TiO 2 sol gel powders|
Rodriguez Rojas, R.A.
|Abstract:||Erbium doped, SiO 2 - TiO 2 powders were fabricated using the sol gel technique. The Er 3+ concentrations were 2%, 5% and 10% (mol), and 10%, 25%, 50%, 70% for the TiO 2. A strong, green up-conversion luminescence was found in the samples when exciting at 1532 nm and 978 nm. The recorded spectra showed less intense emissions at 410 nm and 675 nm. The excitation and emission mechanisms proposed were supported on experimental results, such as the absorption and emission spectra, the decay times and the luminescence intensity versus pump power.|
|Appears in Collections:||Producción científica UdeG (prueba)|
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