Yttrium Tantalates and Niobates rare earth ions doped with emission in the visible and near infrared region for photonics applications

• Grant number: 18/04587-0
• Support Opportunities: Scholarships abroad - Research Internship - Master's degree
• Start date: June 01, 2018
• End date: November 30, 2018
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
• Principal Investigator: Rogéria Rocha Gonçalves
• Grantee: Fernanda Hediger Borges Ribeiro
• Supervisor: Maria Rute de Amorim e Sa Ferreira Andre
• Host Institution: Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil
• Institution abroad: Universidade de Aveiro (UA), Portugal
• Associated to the scholarship: 17/10424-3 - Luminescent rare earth tantalate and niobate: synthesis, properties and applications in photonics, BP.MS

Abstract

The research aim of this project is the preparation of luminescent rare earth doped (RE) tantalates and niobates, using the sol-gel methodology. It will be carried out the materials preparation focused mainly on the structural and spectroscopic study and, later, a systematic study on morphological control of the nanoparticles. The synthesized materials may be applied in areas such as Optics, Photonics and Biophotonics, especially in the Health, Energy and Telecommunications sectors. The preparation and structural and spectroscopic characterization as a function of composition, doping and thermal annealing represent the basis of the academic study which will be developed, closely correlating the structure of matter with the luminescent properties and applications. For this purpose, a systematic optical, structural, morphological and spectroscopic (vibrational and electronic) properties will be carried out and studied, aiming at the improvement and optimization of these properties for later technological applications, especially as optical markers.

Scientific publications

(4)

(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)

BORGES, FERNANDA HEDIGER; MARTINS, JOANA COSTA; CAIXETA, FABIO JOSE; PEREIRA, RAFAEL RAMIRO; CARLOS, LUIS DIAS; FERREIRA, RUTE A. S.; GONCALVES, ROGERIA ROCHA. Primary thermometers based on sol-gel upconverting Er3+/Yb3+ co-doped yttrium tantalates with high upconversion quantum yield and emission color tunability. Journal of Sol-Gel Science and Technology, NOV 2021. (17/10424-3, 18/04587-0, 17/11301-2)

BORGES, FERNANDA HEDIGER; CAIXETA, FABIO JOSE; PEREIRA, RAFAEL RAMIRO; DE OLIVEIRA, SILVANA RUELLA; FERREIRA, RUTE A. S.; GONCALVES, ROGERIA ROCHA. High Eu3+ concentration quenching in Y3TaO7 solid solution for orange-reddish emission in photonics. RSC ADVANCES, v. 10, n. 29, p. 16917-16927, MAY 4 2020. (18/04587-0, 17/11301-2, 17/10424-3)

LABAKI, H. P.; BORGES, F. H.; CAIXETA, F. J.; GONCALVES, R. R.. Widely dual tunable visible and near infrared emission in Pr3+-doped yttrium tantalate: Pr3+ concentration dependence on radiative transitions from P-3(0) to the D-1(2). Journal of Luminescence, v. 236, AUG 2021. (20/05319-9, 17/10423-7, 19/25991-6, 18/04587-0, 17/10424-3)

BORGES, FERNANDA HEDIGER; MARTINS, JOANA COSTA; CAIXETA, FABIO JOSE; CARLOS, LUIS D.; FERREIRA, RUTE A. S.; GONCALVES, ROGERIA ROCHA. Luminescent thermometry based on Er3+/Yb3+ co-doped yttrium niobate with high NIR emission and NIR-to-visible upconversion quantum yields. Journal of Luminescence, v. 248, p. 10-pg., 2022-08-01. (17/11301-2, 20/05319-9, 20/00277-6, 17/10424-3, 18/04587-0)