Quantification of the resonant energy transfer processes in Er3+/Yb3+ co-doped Ca3Al2Si3O12 glasses

Cantelar, Eugenio ; Lifante, Ginés ; Grima, Lorena ; Peña, José Ignacio (Universidad de Zaragoza) ; Sola, Daniel

Resumen: The resonant cross relaxation processes between Yb3+ and Er3+ ions in calcium alumino-silicate glasses have been quantified under selective Er3+ excitation. The infrared emission spectra, measured under steady state conditions (CW excitation to the 4I9/2 erbium level), have allowed to obtain an experimental relationship linking the transfer (Yb3+ → Er3+) and back transfer (Er3+ → Yb3+) parameters. These measurements combined with the dynamics of the main emitting levels, measured under pulsed excitation to the 2H11/2 erbium level, have allowed the fully quantification of the energy transfer parameters. The obtained values, C25 = 5.5 × 10[sup]-18 cmsup3 s[sup]-1 (Yb3+ → Er3+), C[sub]52 = 1.5 x 10[sup]-18 cm[sup]3 s[sup]-1(Er[sup]3+ Yb[sup]3) and C[sub]27 = 7.6 x 10[sup]-18 cm[sup]3s[sup]-1 (up-conversion mechanism,estimated from the Judd-Ofelt analysis previously reported), can be used to predict the temporal evolution of the main luminescent emission bands.

Idioma: Inglés

DOI: 10.1016/j.jlumin.2022.119484

Año: 2023

Publicado en: JOURNAL OF LUMINESCENCE 253 (2023), 119484 [8 pp.]
ISSN: 0022-2313

Factor impacto JCR: 3.3 (2023)

Categ. JCR: OPTICS rank: 33 / 119 = 0.277 (2023) - Q2 - T1

Factor impacto SCIMAGO: 0.589 - Atomic and Molecular Physics, and Optics (Q2) - Biophysics (Q2) - Condensed Matter Physics (Q2) - Chemistry (miscellaneous) (Q2) - Biochemistry (Q3)

Financiación: info:eu-repo/grantAgreement/ES/MICINN/PID2019-110632RB-I00

Tipo y forma: Article (Published version)

Área (Departamento): Área Cienc.Mater. Ingen.Metal. (Dpto. Ciencia Tecnol.Mater.Fl.)