Peculiarities of the structural and optical properties of rare-earth-doped phosphate glasses for temperature sensing applications
Fecha
2021Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión aceptada / Onetsi den bertsioa
Identificador del proyecto
ES/1PE/TEC2016-79367-C2-2-R
Impacto
|
10.1016/j.jnoncrysol.2020.120569
Resumen
Eu, Er, Yb-Er, and Dy-doped phosphate glasses were prepared by a wet-route processing of chemical precursors followed by melt-quenching and annealing. XRD measurements highlighted the amorphous nature of the investigated glasses. UV-Vis absorption spectra revealed peaks specific to f-f electronic transitions of the doping ions whereas FTIR and Raman spectroscopy proved the vitreous network formin ...
[++]
Eu, Er, Yb-Er, and Dy-doped phosphate glasses were prepared by a wet-route processing of chemical precursors followed by melt-quenching and annealing. XRD measurements highlighted the amorphous nature of the investigated glasses. UV-Vis absorption spectra revealed peaks specific to f-f electronic transitions of the doping ions whereas FTIR and Raman spectroscopy proved the vitreous network forming role of phosphorous pentoxide. Luminescence spectra in the Vis domain, at RT, showed emission bands characteristic to the ion transitions from the excited states to the ground state. The luminescence spectra collected in the 25-160°C range exhibited a decrease of the emission intensity with temperature rise. In the case of Eu and Dy-doped glasses a relatively small decrease of the emission intensity with temperature is observed by comparison with Er and, respectively, Yb-Er-doped glass where a significant change of the emission intensity is noticed, which recommends the latter as promising candidate for sensing devices. [--]
Materias
Fourier Transform Infrared spectroscopy,
Optical absorption,
Phosphate glass,
Photoluminescence,
Raman spectroscopy,
Rare-earth ions
Editor
Elsevier
Publicado en
Journal of Non-Crystalline Solids 556 (2021) 120569
Departamento
Universidad Pública de Navarra/Nafarroako Unibertsitate Publikoa. Institute of Smart Cities - ISC /
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica, Electrónica y de Comunicación /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektrikoa, Elektronikoa eta Telekomunikazio Ingeniaritza Saila
Versión del editor
Entidades Financiadoras
This work was supported by UEFISCDI (Executive Unity for Financing of Higher Education, Research and Innovation), Core Program, contracts no. 16N/2019, 18N/2019, and 21N/2019, project PN-III-P1-1.2-PCCDI-2017-0871/contract 47PCCDI/2018, project PN-III-P1-1.2-PCCDI-2017-0619/contract 42PCCDI/2018, by the Ministry of Research and Innovation through Program I - Development of the National R & D System, Subprogram 1.2 - Institutional Performance - Projects for Excellence Financing in RDI, contract no.19PFE/2018, and by Spanish State Research Agency and Spanish Ministry of Economy and Competitiveness through the project TEC2016-79367-C2-2-R.