Eu 3+ luminescence and Gd 3+ -Eu 3+ energy transfer in K 5 Li 2 GdF 10 :Eu 3+

Ryba‐Romanowski, W.; Gołvab, S.; Dominiak‐Dzik, G.; Solarz, P.

doi:10.1007/s003390100917

Cited by 32 publications

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“…For lanthanum niobate systems, about three phonons are needed to bridge the 5 D 2 – 5 D 1 energy gap (2500 cm −1 ), preventing the 5 D 1 level from being populated through multi-phonon relaxation. 89 In this regard, cross-relaxation will dominate the quenching of the 5 D 1 and 5 D 2 emissions at a higher Eu 3+ content in lanthanum niobates, 90 as illustrated in the inset of Fig. 4.…”

Section: Resultsmentioning

confidence: 98%

Red and near-infrared emitting phosphors based on Eu³⁺- or Nd³⁺-doped lanthanum niobates prepared by the sol–gel route

et al. 2022

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Section: Resultsmentioning

confidence: 98%

Red and near-infrared emitting phosphors based on Eu³⁺- or Nd³⁺-doped lanthanum niobates prepared by the sol–gel route

et al. 2022

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“…The Gd 3+ ion was studied as an efficient energy transfer (ET) ion in Eu 3+ ‐activated phosphors . Schematic energy levels for Gd 3+ and Eu 3+ shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and photoluminescence characteristics of (Y,Gd)BO₃:RE (RE = Eu³⁺, Ce³⁺, Dy³⁺ and Tb³⁺) phosphors for blue chip and near‐UV white LEDs

2015

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A series of Eu(3+)-, Ce(3+)-, Dy(3+)- and Tb(3+)-doped (Y,Gd)BO3 phosphors was synthesized by a solid-state diffusion method. X-Ray diffraction confirmed their hexagonal structure and the scanning electron microscopy results showed crystalline particles. The excitation spectra revealed that (Y,Gd)BO3 phosphors doped with Eu(3+), Ce(3+), Dy(3+) and Tb(3+) are effectively excited with near UV-light of 395 nm/blue light, 364, 351 and 314 nm, respectively. Photoluminescence spectra of Eu(3+)-, Ce(3+)- and Tb(3+)/Dy(3+)-doped phosphor showed intense emission of reddish orange, blue and white light, respectively. The phosphor Y0.60Gd0.38BO3:Ce0.02 showed CIE 1931 color coordinates of (0.158, 0.031) and better color purity compared with commercially available blue BAM:Eu(2+) phosphor. The phosphor (Y,Gd)BO3 doped with Eu(3+), Dy(3+) and Tb(3+) showed CIE 1931 color coordinates of (0.667, 0.332), (0.251, 0.299) and (0.333, 0.391) respectively. Significant photoluminescence characteristics of the prepared phosphors indicate that they might serve as potential candidates for blue chip and near-UV white light-emitting diode applications.

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“…Crystal structure of K 5 Li 2 GdF 10 : Eu, was reported previously (Ryba-Romanowski et al, 2002). It is built from layers formed by GdF 8 dodecahedra, LiF 4 tetrahedra and KF 6 octahedra.…”

Section: Structural Considerationmentioning

confidence: 85%

Luminescence and excitation energy transfer in new fluoride crystals containing rare earth ions

Ryba‐Romanowski

Solarz

Gusowski

et al. 2007

Radiation Measurements

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Spectroscopic characteristics of Pr 3+ and Eu 3+ in K 2 Na 2 GdF 7 , K 5 Li 2 GdF 10 and K 3 GdF 6 fluoride matrices are considered. Crystal structures of these compounds have been ascertained based on X-ray measurement on single crystal samples. Energies of lattice vibrations have been derived from IR and Raman spectra. Spectroscopic features of crystals in the VUV region were studied using experimental facilities of the Superlumi station at HASYLAB in Hamburg. High-resolution spectra and decay curves of luminescence in the visible were used to determine the energy levels and excited state relaxation dynamics of luminescent ions. Relevance of energy transfer processes, which feed the 5 D J levels of Eu 3+ and the 3 P 0 level of Pr 3+ , is discussed.

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Eu 3+ luminescence and Gd 3+ -Eu 3+ energy transfer in K 5 Li 2 GdF 10 :Eu 3+

Cited by 32 publications

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Red and near-infrared emitting phosphors based on Eu³⁺- or Nd³⁺-doped lanthanum niobates prepared by the sol–gel route

Red and near-infrared emitting phosphors based on Eu³⁺- or Nd³⁺-doped lanthanum niobates prepared by the sol–gel route

Synthesis and photoluminescence characteristics of (Y,Gd)BO₃:RE (RE = Eu³⁺, Ce³⁺, Dy³⁺ and Tb³⁺) phosphors for blue chip and near‐UV white LEDs

Luminescence and excitation energy transfer in new fluoride crystals containing rare earth ions

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Eu 3+ luminescence and Gd 3+ -Eu 3+ energy transfer in K 5 Li 2 GdF 10 :Eu 3+

Cited by 32 publications

References 0 publications

Red and near-infrared emitting phosphors based on Eu3+- or Nd3+-doped lanthanum niobates prepared by the sol–gel route

Red and near-infrared emitting phosphors based on Eu3+- or Nd3+-doped lanthanum niobates prepared by the sol–gel route

Synthesis and photoluminescence characteristics of (Y,Gd)BO3:RE (RE = Eu3+, Ce3+, Dy3+ and Tb3+) phosphors for blue chip and near‐UV white LEDs

Luminescence and excitation energy transfer in new fluoride crystals containing rare earth ions

Contact Info

Product

Resources

About

Red and near-infrared emitting phosphors based on Eu³⁺- or Nd³⁺-doped lanthanum niobates prepared by the sol–gel route

Red and near-infrared emitting phosphors based on Eu³⁺- or Nd³⁺-doped lanthanum niobates prepared by the sol–gel route

Synthesis and photoluminescence characteristics of (Y,Gd)BO₃:RE (RE = Eu³⁺, Ce³⁺, Dy³⁺ and Tb³⁺) phosphors for blue chip and near‐UV white LEDs