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An up-conversion luminophore with high quantum yield and brightness based on BaF<sub>2</sub>:Yb<sup>3+</sup>,Er<sup>3+</sup> single crystals

Eduard Madirov, Vasilii A. Konyushkin, Andrey N. Nakladov, Thomas Bergfeldt, Dmitry Busko, Ian A. Howard, Bryce S. Richards, Andrey Turshatov

Journal of Materials Chemistry C · 2021 · 55 citations · 67 references

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Abstract

Optical properties of BaF<sub>2</sub> single crystals doped with Yb<sup>3+</sup> and Er ions are studied. The highest <italic>ϕ</italic><sub>UC</sub> value of 10.0% was demonstrated for the BaF<sub>2</sub>:Er<sup>3+</sup> (2 mol%) /Yb<sup>3+</sup> (3 mol%) sample under 490 W cm<sup>−2</sup> of 976 nm excitation.

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