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Eu luminescence in tellurite glasses with gold nanostructures |
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| Authors: | Ricardo de Almeida Luciana R.P. Kassab |
| Affiliation: | a Departamento de Engenharia de Sistemas Eletrônicos, Escola Politécnica da USP, 05508-900 São Paulo, SP, Brazil b Laboratório de Vidros e Datação, Faculdade de Tecnologia de São Paulo (FATEC-SP), 01124-060 São Paulo, SP, Brazil c Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Recife PE, Brazil |
| Abstract: | Luminescence properties of Eu3+ doped TeO2-PbO-GeO2 glasses containing gold nanoparticles (NPs) were investigated. The emission spectra of the samples exhibited enhancement of Eu3+ luminescence due to the presence of gold NPs. The emission at 614 nm, due to the Eu3+ hypersensitive transition 5D0-7F2, is much influenced by the gold NPs and increases by ≈100% for samples heat-treated at 350 °C during 41 h. |
| Keywords: | 42.70.Ce 61.46.Df 61.46.&minus w 78.55.&minus m 81.40.&minus z 81.40.Tv |
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