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
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    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
  • English
Classification
Chemistry
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/304184
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