Production and characterization of calcium aluminates glasses doped with rare earths Dy3+ and Sm3+, and co-doped with Dy3+/Sm3+ for white light generation

Authors

  • Wagner Henrique Ferreira Vianna de Oliveira Gamas Universidade Estadual do Norte Fluminense Darcy Ribeiro
  • Giancarlo Gevu dos Santos Universidade Estadual do Norte Fluminense Darcy Ribeiro
  • Max Erik Soffner Universidade Estadual do Norte Fluminense Darcy Ribeiro

Keywords:

Luminescence. Glasses. Rare earth. White light generation.

Abstract

This work consists of the production and characterization of Dy3+/Sm3+ doped calcium aluminate glasses, with the proposed application in white light generation. The glasses were produced using the melt-quenching technique and exhibited an increase in density with the addition of dopants. The absorption and luminescence spectra revealed the characteristic transitions of rare earth elements. For the co-doped samples, under excitation at 360 nm, the insertion of 0.5 mol% of samarium shifted the CCT from 4002 K to 3433 K, in the region of warmer white light. From this perspective, this work demonstrates the possibility of controlling the emitted light coloration.

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Author Biographies

Wagner Henrique Ferreira Vianna de Oliveira Gamas, Universidade Estadual do Norte Fluminense Darcy Ribeiro

Graduated in Physics (2023) from Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF). He is currently a master's student in the postgraduate program in Natural Sciences at UENF, working in the areas of nanophotonics, nanomagnetism and nanobiotechnology.

Giancarlo Gevu dos Santos, Universidade Estadual do Norte Fluminense Darcy Ribeiro

Doutorando em Ciências Naturais pelo PPGCN-UENF, onde atua na linha de pesquisa em Ciências e Tecnologia dos Materiais.  ORCID: https://orcid.org/0000-0001-7944-8470

Max Erik Soffner, Universidade Estadual do Norte Fluminense Darcy Ribeiro

Bachelor's Degree in Applied Physics (2002), Master's Degree in Physics (2005) and Doctorate in Sciences (2010), all from the State University of Campinas (UNICAMP). He is currently an Associate Professor at the State University of Norte Fluminense (UENF). He has experience in Condensed Matter Physics, with emphasis on the optical, thermal and magnetic characterization of materials by Photothermal Techniques and Electronic Magnetic Resonance.

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Published

2023-10-17

How to Cite

Ferreira Vianna de Oliveira Gamas, W. H., Gevu dos Santos, G., & Erik Soffner, M. (2023). Production and characterization of calcium aluminates glasses doped with rare earths Dy3+ and Sm3+, and co-doped with Dy3+/Sm3+ for white light generation. Revista Brasileira De Iniciação Científica, 10, e023036. Retrieved from https://periodicoscientificos.itp.ifsp.edu.br/index.php/rbic/article/view/1175