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Obtention of luminescent LaNbO4:Ln (ln = Dy, TM, er and Yb) matrices prepared by spray pyrolysis process

Abstract

The development of new processes and the research for new materials is essential to obtain phosphors that absorb radiation efficiently and having adequate stability and emission in the visible region. Light-emitting diode is considered as the next generation soli-sate light sources due to its advantages such as long lifetime, low energy consumption and environmental protection. Among different ways for the preparation of phosphors materials, one of the most promising is the Evaporation Induced Self Assembly (EISA) process that involves progressive concentration of non-volatile species. Spray pyrolysis is a method of producing particles, in which a vaporized stream of precursor solution is dried, precipitated, and decomposed in a tubular furnace reactor. During the process the reaction and aggregation volume are confined within a micrometric droplet, which contains precursors of the same stoichiometry as desired in the product. Furthermore, the solvent evaporation is complete within a few seconds which is the contrary to currently available methods that require several hours or up to several days to complete the process. This project, luminescent LaNbO4:Ln (Ln = Dy, Tm, Er, and Yb) matrices will be prepared by spray pyrolysis in order to obtain new phosphors visible-emitting by the Down and Up-conversion process. For the down conversion process, phosphors of LaNbO4:Dy3+ will be prepared containing different amounts of Dy3+ ions and the blue, green and red emissions will be obtained from an excitation in the ultraviolet region. As for the upconversion process, the matrices of LaNbO4 will be doped with different amounts of the Tm3+, Er3+ and Yb3+ ions. The Yb3+ ion will be used as sensitizer for the Er3+ and Tm3+ ions and the blue, green and red emissions will be obtained from excitation in the infrared region. (AU)

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Scientific publications (14)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
PONTES, LAUANY M.; DE CARVALHO, LEONARDO L.; ROCHA, LUCAS A.; FERREIRA, NATALIA H.; TAVARES, DENISE C.; DIAS, FERNANDAG G.; NASSAR, EDUARDO J.; DA SILVA, JORGEV L.; DE OLIVEIRA, MARCELO F.; MAIA, IZAQUE A. Hydroxyapatite incorporation into polyamide membrane. Materials Chemistry and Physics, v. 271, OCT 1 2021. Web of Science Citations: 0.
BATISTA, JESSICA P.; DA SILVA, HENRIQUE J.; ROCHA, LUCAS A.; NASSAR, EDUARDO J. Glass slides or solar cells. Which are better to improve solar energy efficiency?. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, v. 32, n. 11, p. 15151-15159, JUN 2021. Web of Science Citations: 0.
DOS SANTOS FILHO, LEODORO P.; NASCIMENTO, DE F. P. MARIA P.; MARCAL, LIZIANE; CIUFFI, KATIA J.; SILVA, MARCIO L. A. E; NASSAR, EDUARDO J.; ROCHA, LUCAS A. (-)-Hinokinin antimicrobial agents into functionalized mesoporous silica. Journal of Sol-Gel Science and Technology, v. 98, n. 2 MAR 2021. Web of Science Citations: 0.
BALDINI, DANIELLE C.; DE FARIA, EMERSON H.; CIUFFI, KATIA J.; ROCHA, LUCAS A.; NASSAR, EDUARDO JOSE. TiO2 films obtained by the sol-gel process and doped with Yb3+ and Er3+ ions. Journal of Sol-Gel Science and Technology, v. 97, n. 3 JAN 2021. Web of Science Citations: 0.
KALIL Z. R. DE SOUSA; EMERSON H. DE FARIA; LIZIANE MARÇAL; KATIA J. CIUFFI; EMILIANE G. RICCI; LUCAS A. ROCHA; EDUARDO J. NASSAR; JORGE V. L. SILVA; MARCELO F. OLIVEIRA; IZAQUE A. MAIA. INCORPORAÇÃO DE RODAMINA B EM MEMBRANA DE POLIAMIDA PELO MÉTODO DA ADSORÇÃO. Química Nova, v. 44, n. 2, p. 154-160, 2021-05-07.
MARIA F. FERREIRA; KALIL Z. R. DE SOUSA; WAGNER L. MASSAROTTO; EMILIANE G. RICCI; EMERSON H. DE FARIA; KATIA J. CIUFFI; DRAGUTIN SEVIC; LUCAS A. ROCHA; EDUARDO J. NASSAR. Er3+/Yb3+-Doped GdVO4 Obtained by the Non-Hydrolytic Sol-Gel Route and Potential Application as Up-Conversion Thermometer. Journal of the Brazilian Chemical Society, v. 32, n. 2, p. 376-384, Fev. 2021. Web of Science Citations: 0.
MARQUES, NATHALIA DA SILVA; NASSAR, EDUARDO JOSE; VERELST, MARC; MAURICOT, ROBERT; BRUNCKOVA, HELENA; ROCHA, LUCAS ALONSO. Effect of ytterbium amount on LaNbO4:Tm3+,Yb3+ nanoparticles for bio-labelling applications. ADVANCES IN MEDICAL SCIENCES, v. 65, n. 2, p. 324-331, SEP 2020. Web of Science Citations: 0.
FERREIRA, MARIA FERNANDA; PEDROSO DE ANDRADE, FILIPY HENRIQUE; GRANITO, CAMILA JORENTE; NASCIMENTO MELO, WILLIAN EURIPEDES; DE FARIA, EMERSON HENRIQUE; CIUFFI, KATIA JORGE; ROCHA, LUCAS ALONSO; NASSAR, EDUARDO JOSE. Non-hydrolytic Sol-Gel Route: a Powerful Process to Develop UV-Vis-IR Luminescent YVO4 Phosphors. Journal of Fluorescence, v. 30, n. 4 MAY 2020. Web of Science Citations: 0.
VARGAS, VICENTE; SEDOVA, ANASTASIYA; MOSCARDINI, SUSANE; ROCHA, LUCAS; FALCONY, CIRO. Effect of silica coating on the structural and luminescent properties of Sm3+/Yb3+ or Tm3+/YB3+ co-doped TiO2 nanoparticles. CERAMICS INTERNATIONAL, v. 46, n. 3, p. 3345-3352, FEB 15 2020. Web of Science Citations: 0.
MOSCARDINI, SUSANE B.; SVERZUT, LACYR; MASSAROTTO, WAGNER L.; NASSAR, EDUARDO J.; ROCHA, LUCAS A. Multi-color emission from lanthanide ions doped into niobium oxide. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, v. 31, n. 7 FEB 2020. Web of Science Citations: 0.
OLIVEIRA, LIDIA RESENDE; MOSCARDINI, SUSANE BONAMIN; MOLINA, EDUARDO FERREIRA; NASSAR, EDUARDO JOSE; VERELST, MARC; ROCHA, LUCAS ALONSO. Effect of gadolinium incorporation on the structure and luminescence properties of niobium-based materials. Nanotechnology, v. 29, n. 23 JUN 8 2018. Web of Science Citations: 1.
DE SOUZA, ERICA A.; ROCHA, LUCAS A.; DE FARIA, EMERSON H.; CIUFFI, KATIA J.; NASSAR, EDUARDO J.; SILVA, JORGE V. L.; OLIVEIRA, MARCELO F.; MAIA, IZAQUE A. Incorporation of the chemotherapy medication cisplatin into polyamide membrane. Journal of Inorganic Biochemistry, v. 180, p. 171-178, MAR 2018. Web of Science Citations: 1.
FREIRIA, GABRIELA S.; RIBEIRO, AMANDA L.; VERELST, MARC; NASSAR, EDUARDO J.; ROCHA, LUCAS A. Effect of Dy3+ Amount on the Structural and Luminescence Properties of LaNbO4:Dy3+ Phosphor Obtained by One-Step Spray Pyrolysis Process. Journal of the Brazilian Chemical Society, v. 29, n. 3, p. 594-601, MAR 2018. Web of Science Citations: 2.
MICHEL L. DE SOUZA; SUSANE B. MOSCARDINI; EMERSON H. DE FARIA; KATIA J. CIUFFI; LUCAS A. ROCHA; EDUARDO J. NASSAR; JORGE V. L. SILVA; MARCELO F. OLIVEIRA; IZAQUE A. MAIA. ÓXIDO DE ÍTRIO E ALUMÍNIO DOPADO COM Yb3+ E Er3+ INCORPORADO EM MEMBRANA DE POLIAMIDA. Química Nova, v. 41, n. 5, p. 519-527, 2018-05-00.

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