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Materials 2019, 12(1), 129; https://doi.org/10.3390/ma12010129

Spectroscopic Properties of Er3+-Doped Particles-Containing Phosphate Glasses Fabricated Using the Direct Doping Method

1
Dipartimento di Scienza Applicata e Tecnologia (DISAT) and INSTM UdR Torino Politecnico, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
2
Laboratory of Photonics, Tampere University, Korkeakoulunkatu 3, 33720 Tampere, Finland
3
Fondazione LINKS—Leading Innovation & Knowledge for Society, Via P. C. Boggio 61, 10138 Torino, Italy
4
Istituto di Fotonica e Nanotecnologie-Consiglio Nazionale delle Ricerche (IFN-CNR), Caratterizzazione e Sviluppo di Materiali per la Fotonica e l’Optoelettronica (CSMFO) Lab., Via alla Cascata 56/C, 38123 Povo (TN), Italy
5
nLIGHT Corporation, Sorronrinne 9, 08500 Lohja, Finland
*
Author to whom correspondence should be addressed.
Current Address: Laboratory of Photonics, Tampere University of Technology, Korkeakoulunkatu 3, 33720 Tampere, Finland.
Received: 4 December 2018 / Revised: 17 December 2018 / Accepted: 21 December 2018 / Published: 3 January 2019
(This article belongs to the Special Issue Advanced Glasses, Composites and Ceramics for High Growth Industries)
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Abstract

The effect of the incorporation of Er2O3-doped particles on the structural and luminescence properties of phosphate glasses was investigated. A series of different Er2O3-doped TiO2, ZnO, and ZrO2 microparticles was synthesized using soft chemistry and then added into various phosphate glasses after the melting at a lower temperature than the melting temperature. The compositional, morphological, and structural analyses of the particles-containing glasses were performed using elemental mapping by field emission-scanning electron microscopy (FE-SEM) with energy dispersive x-ray spectrometry (EDS) and x-ray diffraction (XRD). Additionally, the luminescence spectra and the lifetime values were measured to study the influence of the particles incorporation on the spectroscopic properties of the glasses. From the spectroscopic properties of the glasses with the composition 50P2O5-40SrO-10Na2O, a large amount of the Er2O3-doped particles is thought to dissolve during the glass melting. Conversely, the particles were found to survive in glasses with a composition 90NaPO3-(10 − x)Na2O-xNaF (with x = 0 and 10 mol %) due to their lower processing temperature, thus clearly showing that the direct doping method is a promising technique for the development of new active glasses. View Full-Text
Keywords: phosphate glass; oxyfluoride phosphate glass; Er2O3-doped particles; direct particle doping; Er3+ luminescence property phosphate glass; oxyfluoride phosphate glass; Er2O3-doped particles; direct particle doping; Er3+ luminescence property
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Lopez-Iscoa, P.; Ojha, N.; Aryal, U.; Pugliese, D.; Boetti, N.G.; Milanese, D.; Petit, L. Spectroscopic Properties of Er3+-Doped Particles-Containing Phosphate Glasses Fabricated Using the Direct Doping Method. Materials 2019, 12, 129.

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