Monodisperse and hollow structured Y 2 O 3 :Ln 3+ (Ln = Eu, Dy, Er, Tm) nanospheres: A facile synthesis and multicolor-tunable luminescence properties

Li, Ruiqing; Zi, Wenwen; Li, Linlin; Liu, Lu; Zou, Lianchun; Gan, Shucai

doi:10.1016/j.jallcom.2014.08.118

Cited by 24 publications

(4 citation statements)

References 33 publications

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“…A strong peak at 2θ = 29.5 • was observed, attributed to the plane (222). Similar behavior has been reported elsewhere [11][12][13][14][15]. An annealing process was performed for the RE 3+ -doped nanophosphors in order to disperse the RE ions into the lattice and in turn to increase the total luminescence of the nanoparticles.…”

Section: Resultssupporting

confidence: 52%

Enhancement of Luminescence Efficiency of Y2O3 Nanophosphor via Core/Shell Structure

Hyun¹,

Kim

et al. 2021

Nanomaterials

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We successfully fabricated Y2O3:RE3+ (RE = Eu, Tb, and Dy) core and core–shell nanophosphors by the molten salt method and sol–gel processes with Y2O3 core size of the order of 100~150 nm. The structural and morphological studies of the RE3+-doped Y2O3 nanophosphors are analyzed by using XRD, SEM and TEM techniques, respectively. The concentration and annealing temperature dependent structural and luminescence characteristics were studied for Y2O3:RE3+ core and core–shell nanophosphors. It is observed that the XRD peaks became narrower as annealing temperature increased in the core–shell nanophosphor. This indicates that annealing at higher temperature improves the crystallinity which in turn enhances the average crystallite size. The emission intensity and quantum yield of the Eu3+-doped Y2O3 core and core–shell nanoparticles increased significantly when annealing temperature is varied from 450 to 550 °C. No considerable variation was noticed in the case of Y2O3:Tb3+ and Y2O3:Dy3+ core and core–shell nanophosphors.

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Section: Resultssupporting

confidence: 52%

Enhancement of Luminescence Efficiency of Y2O3 Nanophosphor via Core/Shell Structure

Hyun¹,

Kim

et al. 2021

Nanomaterials

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“…The result demonstrates the presence of carbonates and indicates that the precursor is coated onto the PF template. After the calcination process, the characteristic peaks of PF and the Y(OH)CO 3 precursor nearly disappear (Figure S1c), and a newly appearing band at 566 cm –1 is ascribed to the stretching vibration of Y–O from the Y 2 O 3 crystal . The vibrational spectrum of vaterite-type orthoborate including B 3 O 9 9– groups involves triangular planar BO 3 3– , which is significantly different from the aragonite and calcite orthoborates.…”

Section: Resultsmentioning

confidence: 97%

Controllable Synthesis, Formation Process, and Luminescence Performances of Diverse Yttrium Compounds with Hollow Structures

et al. 2022

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Hollow spherical Y 2 O 3 and YBO 3 have been prepared by a facile template-directed strategy using phenol-formaldehyde (PF) resin spheres as templates. The PF@Y(OH)CO 3 precursor can be fabricated by a simple precipitation route. The Y 2 O 3 hollow spheres are obtained via a direct annealing process, and the hollow spherical YBO 3 are fabricated via a hydrothermal route followed by an annealing process at the expense of the same PF@Y(OH)CO 3 precursor. The whole synthesis procedure is performed in aqueous solution without any surfactant or catalyst. Moreover, YVO 4 quasioctahedral microcrystals with spherical holes are obtained. The formation mechanisms of the yttrium compounds with different morphologies have been discussed. By incorporating proper rare earth activator ions into the Y 2 O 3 , YBO 3 , and YVO 4 hosts, the as-synthesized luminescent materials can exhibit eminent performances with both down-conversion and up-conversion luminescence. Furthermore, the as-fabricated light-emitting diode (LED) devices can emit dazzling characteristic emission light, which reveals that the phosphors have application potential in lighting and displays. This simple synthesis strategy may provide a new idea for the fabrication of inorganic compounds with perfect hollow structures and excellent properties.

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“…Y 2 O 3 has stable physical and chemical properties, and researchers have prepared various Y 2 O 3 -based phosphors. 13–16 For example, Y. Kumar et al prepared Y 2 O 3 :Eu 3+ phosphor by coprecipitation method, and studied its structure and optical properties in detail. 17 R. E. Muenchausen et al synthesized Y 2 O 3 :Tb 3+ phosphors and investigated the effect of Tb 3+ doping on the photoluminescence performance of Y 2 O 3 :Tb 3+ .…”

Section: Introductionmentioning

confidence: 99%

Luminescence performance and energy transfer mechanism investigation of RE³⁺ (Eu³⁺/Tb³⁺/Ce³⁺)-doped Y₂O₃ phosphors

Liu,

Lu,

Liu

et al. 2024

CrystEngComm

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Monodisperse and hollow structured Y 2 O 3 :Ln 3+ (Ln = Eu, Dy, Er, Tm) nanospheres: A facile synthesis and multicolor-tunable luminescence properties

Cited by 24 publications

References 33 publications

Enhancement of Luminescence Efficiency of Y2O3 Nanophosphor via Core/Shell Structure

Enhancement of Luminescence Efficiency of Y2O3 Nanophosphor via Core/Shell Structure

Controllable Synthesis, Formation Process, and Luminescence Performances of Diverse Yttrium Compounds with Hollow Structures

Luminescence performance and energy transfer mechanism investigation of RE³⁺ (Eu³⁺/Tb³⁺/Ce³⁺)-doped Y₂O₃ phosphors

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Monodisperse and hollow structured Y 2 O 3 :Ln 3+ (Ln = Eu, Dy, Er, Tm) nanospheres: A facile synthesis and multicolor-tunable luminescence properties

Cited by 24 publications

References 33 publications

Enhancement of Luminescence Efficiency of Y2O3 Nanophosphor via Core/Shell Structure

Enhancement of Luminescence Efficiency of Y2O3 Nanophosphor via Core/Shell Structure

Controllable Synthesis, Formation Process, and Luminescence Performances of Diverse Yttrium Compounds with Hollow Structures

Luminescence performance and energy transfer mechanism investigation of RE3+ (Eu3+/Tb3+/Ce3+)-doped Y2O3 phosphors

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Luminescence performance and energy transfer mechanism investigation of RE³⁺ (Eu³⁺/Tb³⁺/Ce³⁺)-doped Y₂O₃ phosphors