Luminescence of Eu3+ rare-earth ions in Lu2O3 nanospheres

Зайцев, С. В.; Грузинцев, А. Н.; Yermolayeva, Yu. V.; Matveevskaya, N. A.; Зверькова, И. И.; Емельченко, Г. А.; Tolmachev, A. V.

doi:10.1134/s0021364017150127

Cited by 4 publications

(1 citation statement)

References 24 publications

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“…The transitions produce a lot of absorption and fluorescence emission lines, which are spectral characteristics of the rare earth ion but may change with surrounding composition and defects of the matrix material. Most rare earth luminescent materials contain +3 ions that have high luminescent purity, long fluorescence life, and temperature-invariant spectral profile [24]. Because 4f orbital is in the inner layer, it is seldom affected by external factors, and the luminescent color of the luminescent material is largely independent of the matrix materials [28].…”

Section: Introductionmentioning

confidence: 99%

Band structures of RE₂O₃:Eu (RE = Lu, Y, Sc) from perspective of spin-polarized quasi-particle approximation

Chen

Xie

et al. 2021

Modelling Simul. Mater. Sci. Eng.

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Eu-doped rare earth sesquioxides RE2O3:Eu (RE = Lu, Y, Sc) exhibit subtle difference in scintillation processes, for which impurity levels play an important role but are difficult to assess computationally due to localized f-electrons and itinerant spd-electrons in the materials. Unpaired electrons of dopant Eu3+ ions also render complexity to these systems. In this study we calculated band structures of pure and Eu-doped RE2O3 using quasi-particle GW approximation with collinear spin polarization based on density functional theory. The band structures were similar across the three host material systems, varying with spin component and dopant’s lattice site. Only the majority-spin states are responsible for the scintillation process, whereas the minority-spin states are entangled with the hosts’ low-energy conduction bands. The materials’ afterglow behavior was explained in terms of the positions of 4f orbitals and electron traps, as well as thermodynamics of the doping systems.

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Section: Introductionmentioning

confidence: 99%

Band structures of RE₂O₃:Eu (RE = Lu, Y, Sc) from perspective of spin-polarized quasi-particle approximation

Chen

Xie

et al. 2021

Modelling Simul. Mater. Sci. Eng.

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Size-dependent luminescence kinetics of rare-earth Er3+ ions in Y2O3 nanospheres

Зайцев

Kiselev

Зверькова

et al. 2019

Journal of Applied Physics

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The luminescence kinetics of Er ions in Y2O3:Er nanospheres with diameters of 75–270 nm has been studied. A pronounced decrease in the luminescence decay times for Er3+ ion transitions in the green-red visible range is observed with increasing diameter up to 270 nm, unlike near-infrared emission at ∼1.5 μm. This finding is attributed to the appearance of photonic modes accelerating spontaneous luminescence, which is confirmed by a model calculation of bound optical states in the studied nanospheres.

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Dispersion of Lifetimes of Excited States of Single Molecules in Organic Matrices at Ultralow Temperatures

Gladush

Anikushina

Gorshelev

et al. 2019

J. Exp. Theor. Phys.

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Luminescence of Eu3+ rare-earth ions in Lu2O3 nanospheres

Cited by 4 publications

References 24 publications

Band structures of RE₂O₃:Eu (RE = Lu, Y, Sc) from perspective of spin-polarized quasi-particle approximation

Band structures of RE₂O₃:Eu (RE = Lu, Y, Sc) from perspective of spin-polarized quasi-particle approximation

Size-dependent luminescence kinetics of rare-earth Er3+ ions in Y2O3 nanospheres

Dispersion of Lifetimes of Excited States of Single Molecules in Organic Matrices at Ultralow Temperatures

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Luminescence of Eu3+ rare-earth ions in Lu2O3 nanospheres

Cited by 4 publications

References 24 publications

Band structures of RE2O3:Eu (RE = Lu, Y, Sc) from perspective of spin-polarized quasi-particle approximation

Band structures of RE2O3:Eu (RE = Lu, Y, Sc) from perspective of spin-polarized quasi-particle approximation

Size-dependent luminescence kinetics of rare-earth Er3+ ions in Y2O3 nanospheres

Dispersion of Lifetimes of Excited States of Single Molecules in Organic Matrices at Ultralow Temperatures

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Band structures of RE₂O₃:Eu (RE = Lu, Y, Sc) from perspective of spin-polarized quasi-particle approximation

Band structures of RE₂O₃:Eu (RE = Lu, Y, Sc) from perspective of spin-polarized quasi-particle approximation