Eu 3+ Ion Luminescence Spectra from Lanthanide Sesquioxides Exhibiting Three Different Crystal Structures

Abstract

We have investigated the Eu³⁺ ion luminescence spectra from different host crystals of the lanthanide sesquioxides exhibiting either the A, B, or C form. The Eu³⁺ ion luminescence spectra from B-type Eu₂O₃ and from Eu³⁺-doped A-type La₂O₃ and C-type Lu₂O₃ were obtained at room temperature. It is suggested that the luminescence from f-f transitions in the Eu³⁺ ion can be used to determine the crystal structure, because the different Eu³⁺ ion site symmetries in the different crystal structures give rise to different characteristic spectral splitting patterns.

Keywords

Analysis for crystal structure Emission spectroscopy Fluorescence Luminescence Analytical methods Spectroscopic techniques

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