Photon cascade emission in Pr³⁺ doped fluorides with CaF₂ structure: Application of a model for its prediction

Herden, Benjamin; García-Fuente, Amador; Ramanantoanina, Harry; Jüstel, Thomas; Daul, Claude; Urland, Werner

doi:10.1016/j.cplett.2014.12.013

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Journal article

Photon cascade emission in Pr³⁺ doped fluorides with CaF₂ structure: Application of a model for its prediction

Herden, Benjamin Department of Chemistry, University of Fribourg, Switzerland
García-Fuente, Amador Department of Chemistry, University of Fribourg, Switzerland
Ramanantoanina, Harry Department of Chemistry, University of Fribourg, Switzerland
Jüstel, Thomas Department of Chemical Engineering, Münster University of Applied Sciences, Steinfurt, Germany
Daul, Claude Department of Chemistry, University of Fribourg, Switzerland
Urland, Werner Department of Chemistry, University of Fribourg, Switzerland

20.01.2015

Published in:

Chemical Physics Letters. - 2015, vol. 620, p. 29–34

English In this work, we predict and measure the optical behaviour of Pr³⁺ in different binary and ternary fluorides. We use a validated model based on Ligand Field Theory and Density Functional Theory to calculate the multiplet energy levels arising from the ground [Xe]4f² and excited [Xe]4f¹5d¹ electron configurations of Pr³⁺ in its chemical environment. Moreover, the luminescence spectra of the considered materials were recorded. In overall the theoretical determination corroborates to the experimental findings. The phenomenon of the photon cascade emission is particularly stressed, being important for the design of modern phosphors with quantum efficiencies larger than 100%

Faculty

Faculté des sciences et de médecine

Department

Département de Chimie

Language