A universal approach for calculating the Judd-Ofelt parameters of RE3+ in powdered phosphors and its application for the β-NaYF4 :Er3+ /Yb3+ phosphor derived from auto-combustion-assisted fluoridation

Physical Chemistry Chemical Physics : PCCP
Yanqiu ZhangRuinian Hua

Abstract

It is difficult to calculate the Judd-Ofelt (J-O) parameters for trivalent rare earth (RE)-doped powders due to the unavailable absorption spectrum that is necessarily used in the conventional J-O calculation procedure. In this study, a universal method starting from the diffuse-reflection spectrum for calculating the J-O parameters of RE3+-doped powdered samples was proposed. In this proposed method, by taking the Kubelka-Munk function into account, the absorption cross-section spectrum was derived from the diffuse-reflection spectrum in the RE3+-doped powdered sample using the connection between the absorption cross section and the radiative transition rate of RE3+. Then, the J-O parameters might be calculated from the absorption cross-section spectrum via the traditional J-O calculation technique. The NaYF4:Er3+/Yb3+ and NaYF4:Er3+ phosphors were prepared via an auto-combustion-assisted fluoridation technique, and the J-O calculation was carried out for the obtained samples. The obtained J-O parameters were compared with those reported in the literature and also verified by comparing the calculated radiative transition lifetimes with the experimental values. Finally, it was deduced that the proposed J-O calculation route was...Continue Reading

References

Mar 20, 2010·Physical Chemistry Chemical Physics : PCCP·Wenqin LuoXueyuan Chen
Sep 19, 2017·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Trilok K PathakR E Kroon

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Citations

Jul 19, 2019·Physical Chemistry Chemical Physics : PCCP·Justyna ZelerJoanna Jedoń
Apr 1, 2020·Physical Chemistry Chemical Physics : PCCP·Chunfeng YuHaiping Xia
Mar 4, 2020·Optics Express·Junfeng WangN Peyhambarian
Aug 28, 2020·Physical Chemistry Chemical Physics : PCCP·Mustafa İlhan, İlker Çetin Keskin
Mar 4, 2020·Optics Express·Leipeng LiZhiguo Zhang
Dec 8, 2020·Physical Chemistry Chemical Physics : PCCP·D G KellermanA P Tyutyunnik
Dec 21, 2020·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Xiao WangWing-Han Wong

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Methods Mentioned

BETA
X-ray
Fluorescence

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