Development of faraday rotators based on oxide glasses and glass-ceramics containing perovskite nanocrystals for technological applications

• Grant number: 23/04832-2
• Support Opportunities: Regular Research Grants
• Start date: October 01, 2023
• End date: September 30, 2025
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
• Principal Investigator: Douglas Faza Franco
• Grantee: Douglas Faza Franco
• Host Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
• Associated researchers: Claudio Floridia ; Jeferson Almeida Dias ; João Batista Rosolem ; Lippy Faria Marques ; Marcelo Nalin ; Sandra Helena Messaddeq ; Sidney José Lima Ribeiro ; Silvia Helena Santagneli ; Younes Messaddeq

Abstract

This project aims to synthesize and characterize oxide glasses and glass-ceramics with magneto-optical (MO) properties, aiming at the production of Faraday rotators for the development of MO sensors. To achieve this goal, borogermanate glasses containing high concentrations of rare earth ions with high paramagnetic moments (¼eff), such as Tb3+, Dy3+ and Ho3+, will be synthesized. The production of thermally stable glasses with high concentrations of rare earth ions, transparent in the visible and near-infrared (NIR) regions, and with high values of Verdet constant is not a trivial process. The fabrication of new Faraday rotators with high values of Verdet constant (VB) based on homogeneous and transparent MO glass-ceramics containing rare earth ion-derived A+3X3+O3 perovskite nanocrystals is a challenging task. The perovskites TbAlO3, DyAlO3, and HoAlO3 will be prepared from solid-state synthesis and subsequently inserted into the borogermanate glass matrix. Glasses and glass-ceramics will be prepared by the melt quenching method followed by thermal shock. Besides, it is intended to manufacture single-mode and/or multimode MO preforms and fibers. Thermal, structural, morphological, spectroscopic, and optical properties of glasses and glass ceramics will be studied via Differential Scanning Calorimetry (DSC), X-ray Diffraction, Transmission Electron Microscopy (TEM), and Raman, UV-Vis-NIR, M-Lines, and Luminescence spectroscopies, respectively. The investigation of the MO properties of vitreous materials will be performed by measuring the Faraday rotation angles (¸) and calculating the Verdet constants (VB) values in the visible and NIR (at 500, 632, 980, 1330, and 1550 nm) regions. MO fibers will be morphologically characterized via Scanning Electron Microscopy (SEM), and the optical signal attenuation measurements will be carried out using the Cut-back method. The magnitude of the MO effect of these materials will be evaluated based on the values of Verdet constant (VB). In terms of applications, materials with the highest VB values will be selected for the development of MO sensors aimed at detecting magnetic fields and electric currents in electrical transformers or electrical machines. (AU)

Scientific publications

(5)

(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)

BERNO, ANA ELISA; CAIXETA, FABIO J.; RUZENE, JOAO PEDRO C.; FELTRAN, ALINE M.; ALBINO, LEONARDO V.; ABUCAFY, MARINA P.; SILVA, OTAVIO DE B.; RODRIGUES, JOAO PEDRO P.; FERREIRA-NETO, ELIAS P.; ROSA, AMAURI P. A.; et al. Recycled Rare Earth Ions From E-Waste In Borogermanate Glasses For Magneto-Optical Applications. CHEMISTRY-AN ASIAN JOURNAL, v. N/A, p. 12-pg., 2025-03-18. (23/04832-2, 13/07793-6, 24/13104-3)

LAMARCA, RAFAELA S.; DOS S. FERREIRA, SABRINA; ABUCAFY, MARINA P.; SILVA, LEANDRO S.; PISHRO, KHATEREH A.; AMARAL, CLARICE D. B.; FERNANDES, JOSE O.; CUNHA, SARA C.; FRANCO, DOUGLAS F.; GONZALEZ, MARIO H.. Advances in Sustainable Extraction of Arsenic and Cadmium from Sewage Sludge: Use of Hydrophobic Deep Eutectic Solvent Modified with Magnetic Nanoparticles. ACS SUSTAINABLE CHEMISTRY & ENGINEERING, v. 12, n. 39, p. 9-pg., 2024-09-16. (21/14759-5, 23/04832-2, 21/14581-1, 14/50945-4)

LAMARCA, RAFAELA S.; FERREIRA, SABRINA DOS S.; PAGANINI, EDER R.; FERREIRA, NATHALIA DOS S.; AYALA-DURAN, SAIDY C.; ISQUIBOLA, GUILHERME; GOMES, PAULO C. F. DE LIMA; AMARAL, CLARICE D. B.; MAGNANI, MARINA; FRANCO, DOUGLAS F.; et al. Sustainable cadmium extraction from sewage sludge samples: A novel approach with hydrophobic deep eutectic solvents and ultrasound-assisted extraction (HDES-UAE) prior to ICP-MS analysis. JOURNAL OF MOLECULAR LIQUIDS, v. 398, p. 9-pg., 2024-02-19. (21/14581-1, 14/50945-4, 21/14759-5, 19/22113-8, 17/18531-3, 23/04832-2)

DE BRITO, CAIQUE SERATI; ROSA, BARBARA L. T.; CHAVES, ANDREY; CAVALINI, CAMILA; RABAHI, CESAR R.; FRANCO, DOUGLAS F.; NALIN, MARCELO; BARCELOS, INGRID D.; REITZENSTEIN, STEPHAN; GOBATO, YARA GALVAO. Probing the Nature of Single-Photon Emitters in a WSe₂ Monolayer by Magneto-Photoluminescence Spectroscopy. Nano Letters, v. 24, n. 42, p. 7-pg., 2024-10-10. (15/13771-0, 19/14017-9, 14/07375-2, 13/07793-6, 22/10340-2, 23/08276-7, 23/04832-2, 22/08329-0)

RODRIGUES, THAIS; FERREIRA, KAREN CHIBANA; ISQUIBOLA, GUILHERME; FRANCO, DOUGLAS FAZA; ANDERSON, JARED L.; MERIB, JOSIAS DE OLIVEIRA; GOMES, PAULO CLAIRMONT FEITOSA DE LIMA. Investigating a new approach for magnetic ionic liquids: Dispersive liquid-liquid microextraction coupled to pyrolysis gas-chromatography-mass spectrometry to determine flame retardants in sewage sludge samples. Journal of Chromatography A, v. 1730, p. 9-pg., 2024-06-20. (23/04832-2, 14/50945-4, 22/02991-3)