Blue fluorescence of Ti3+ ions in LaGaO3/SrTiO3 mixed crystals

Slawomir Maksymilian Kaczmarek

doi:10.1117/12.475317

12 July 2002 Blue fluorescence of Ti³⁺ions in LaGaO₃/SrTiO₃ mixed crystals

Proceedings Volume 4766, XI Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transition Metal Ions; (2002) https://doi.org/10.1117/12.475317
Event: XI Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transition Metal Ions, 2001, Kazan, Russian Federation

Abstract

In the absorption spectrum of the crystal there was stated the presence of Ti³⁺ ions at octahedral Ga positions in strong crystal field. Ti³⁺ ions arise due to some reducing conditions of the crystal growth. It was found that electron delocalization at higher temperature, e.g. In oxidation-reduction reaction: Ti⁴⁺ + e equals Ti³⁺ may appear in optical spectra as charge transfer bands in the NIR region giving rise to blue absorption. The observed fluorescence of ²T₂-²E transition of Ti³⁺ in the LaGaO₃/SrTiO₃ mixed crystals shows two bands centered at about 420 and 447 nm coming from excitation at 314, 340 and 384 nm.

Citation Download Citation

Slawomir Maksymilian Kaczmarek "Blue fluorescence of Ti³⁺ions in LaGaO₃/SrTiO₃ mixed crystals", Proc. SPIE 4766, XI Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transition Metal Ions, (12 July 2002); https://doi.org/10.1117/12.475317

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