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Analysis of inner filter effect on the up-conversion spectra of erbium doped yttrium oxide close-packed powders |
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| Authors: | Nikifor RakovGlauco S Maciel |
| Institution: | a PG-Ciência dos Materiais, Universidade Federal do Vale do São Francisco, 48902-300, Juazeiro, BA, Brazil b Instituto de Física, Universidade Federal Fluminense, 24210-346, Niterói, RJ, Brazil |
| Abstract: | We observed that the up-conversion (UC) emission profiles of erbium (Er3+) doped yttrium oxide (Y2O3) close-packed powders prepared by combustion synthesis are different when the luminescence reflected from the sample is compared to the luminescence transmitted through the sample (thickness: ∼0.1 mm). The effect was identified as a combination of scattering and an inner filter effect (IFE). The IFE reduces the transmitted UC luminescence bandwidths up to 50%. The IFE was suppressed by the inclusion of free-standing undoped Y2O3 particles. |
| Keywords: | Inner filter effect Scattering Up-conversion Rare-earth doped powders |
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