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http://acervodigital.unesp.br/handle/11449/41661Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | de Assumpcao, T. A. A. | - |
| dc.contributor.author | da Silva, D. M. | - |
| dc.contributor.author | Kassab, L. R. P. | - |
| dc.contributor.author | Martinelli, J. R. | - |
| dc.contributor.author | de Araujo, C. B. | - |
| dc.date.accessioned | 2014-05-20T15:32:52Z | - |
| dc.date.accessioned | 2016-10-25T18:09:15Z | - |
| dc.date.available | 2014-05-20T15:32:52Z | - |
| dc.date.available | 2016-10-25T18:09:15Z | - |
| dc.date.issued | 2010-10-01 | - |
| dc.identifier | http://dx.doi.org/10.1016/j.jnoncrysol.2010.02.016 | - |
| dc.identifier.citation | Journal of Non-crystalline Solids. Amsterdam: Elsevier B.V., v. 356, n. 44-49, p. 2465-2467, 2010. | - |
| dc.identifier.issn | 0022-3093 | - |
| dc.identifier.uri | http://hdl.handle.net/11449/41661 | - |
| dc.identifier.uri | http://acervodigital.unesp.br/handle/11449/41661 | - |
| dc.description.abstract | 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 (F-2(7/2) -> F-2(5/2)). 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 increased local field in the proximity of the silver NPs combined with the Yb3+ -> Tm3+ energy transfer. (C) 2010 Elsevier B.V. All rights reserved. | en |
| dc.format.extent | 2465-2467 | - |
| dc.language.iso | eng | - |
| dc.publisher | Elsevier B.V. | - |
| dc.source | Web of Science | - |
| dc.subject | Nanoparticles | en |
| dc.subject | Upconversion | en |
| dc.subject | Lead germanate glass | en |
| dc.title | Influence of the temperature on the nucleation of silver nanoparticles in Tm3+/Yb3+ codoped PbO-GeO2 glasses | en |
| dc.type | outro | - |
| dc.contributor.institution | Universidade de São Paulo (USP) | - |
| dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
| dc.contributor.institution | Universidade Federal de Pernambuco (UFPE) | - |
| dc.description.affiliation | EPUSP, Dept Engn Sistemas Eletron, São Paulo, Brazil | - |
| dc.description.affiliation | Univ Estadual Paulista, Lab Vidros & Datacao, FATEC SP, CEETEPS, São Paulo, Brazil | - |
| dc.description.affiliation | Universidade Federal de Pernambuco (UFPE), Dept Fis, BR-50670901 Recife, PE, Brazil | - |
| dc.description.affiliationUnesp | Univ Estadual Paulista, Lab Vidros & Datacao, FATEC SP, CEETEPS, São Paulo, Brazil | - |
| dc.identifier.doi | 10.1016/j.jnoncrysol.2010.02.016 | - |
| dc.identifier.wos | WOS:000285282100037 | - |
| dc.rights.accessRights | Acesso restrito | - |
| dc.relation.ispartof | Journal of Non-Crystalline Solids | - |
| Appears in Collections: | Artigos, TCCs, Teses e Dissertações da Unesp | |
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