Influence of the temperature on the nucleation of silver nanoparticles in Tm3+/Yb3+codoped PbO–GeO2 glasses
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Journal of Non-Crystalline Solids
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The influence of the temperature on the nucleation of silver nanoparticles (NPs) in Tm3+/Yb3+ codoped PbO–GeO2
glasses was studied in this work. The infrared-to-visible frequency upconversion (UC) luminescence of Tm3+ ions
was used to probe the NPs nucleation and the results were correlated with the increase of the heat-treatment
temperature. Emission spectra in the blue–red region were measured by exciting the samples with a cw 980 nm
diode laser in resonance with the Yb3+ transition (2
F7/2→2
F5/2). The results were correlated with transmission
electron microscopy measurements and revealed the different behavior of the nucleation process as a function of
temperature. The enhanced UC emission in the visible region is attributed to the increasedlocalfieldin the proximity
of the silver NPs combined with the Yb3+→Tm3+ energy transfer.
Como referenciar
ASSUMPÇÃO, T.A.A.; SILVA, D.M. da; KASSAB, L.R.P.; MARTINELLI, J.R.; ARAUJO, C.B. de. Influence of the temperature on the nucleation of silver nanoparticles in Tm3+/Yb3+codoped PbO–GeO2 glasses
. Journal of Non-Crystalline Solids, v. 356, n. 44-49, p. 2465-2467, 2010. DOI: 10.1016/j.jnoncrysol.2010.02.016. Disponível em: http://repositorio.ipen.br/handle/123456789/4567. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.