Fascinating functional properties of Mn:Gd2O3 nanocrystalline phosphor

Imam, N.G.; Mohamed, Mohamed Bakr

doi:10.1016/j.molstruc.2015.05.013

Cited by 14 publications

(2 citation statements)

References 37 publications

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“…The lattice parameters value for this case are shown in figure 2(b) and listed in table S3. Similar nonlinear lattice parameters behavior was observed for Mn:Gd 2 O 3 [32] and Mn:Er 2 O 3 [33] nanocrystals.…”

Section: Introductionsupporting

confidence: 78%

Synthesis and characterization of Gd₂O₃: Er³⁺, Yb³⁺ doped with Mg²⁺, Li⁺ ions—effect on the photoluminescence and biological applications

et al. 2021

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Gd2O3:1% Er3+, 18% Yb3+, x% Mg2+ (x = 0; 2.5; 4; 5; 6; 8;10; 20; 25; 50) and Gd2O3:1% Er3+, 18% Yb3+, 2,5% Mg2+, y% Li+ (y = 0.5–2.5) nanoparticles were synthesized by homogenous precipitation method and calcined at 900 °C for 3 h in air atmosphere. Powder x-ray diffraction, scanning electron microscopy, cathodoluminescence, transmission electron microscopy, energy dispersive x-ray spectroscopy and photoluminescence techniques were employed to characterize the obtained nanoparticles. We observed a 8-fold increase in red luminescence for samples suspended in DMSO solution for 2.5% of Mg2+ doping. The x-ray analysis shows that for the concentration of 2.5% Mg, the size of the crystallites in the NPs is the largest, which is mainly responsible for the increase in the intensity of the upconversion luminescence. But the addition of Li+ ions did not improve the luminescence of the upconversion due to decreasing of crystallites size of the NPs. Synthesized nanomaterials with very effective upconverting luminescence, can act as luminescent markers in in vivo imaging. The cytotoxicity of the nanoparticles was evaluated on the 4T1 cell line for the first time.

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Section: Introductionsupporting

confidence: 78%

Synthesis and characterization of Gd₂O₃: Er³⁺, Yb³⁺ doped with Mg²⁺, Li⁺ ions—effect on the photoluminescence and biological applications

et al. 2021

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“…84,85 Numerous nano phosphor substances have been successfully produced using this procedure, however some of them are mentioned as, Gd 2 O 3 : Eu, Gd 2 O 3 : Tm/Er/ Yb, Gd 2 O 3 : Ho: Yb, Gd 2 O 3 : Er/Zn, etc. [86][87][88][89] The lower temperature range of 70 °C-320 °C is a benefit of this procedure over the traditional methods. The manufactured gel also has casting capabilities and interconnected fragments can be produced.…”

Section: Synthesis Methodsmentioning

confidence: 99%

Review— On the Development of Phosphors for Luminescent Materials: Synthesis, Characterization, Applications and Evolution of Phosphors as White-Light-Emitting Diodes

Farooq,

Rafiq,

Shah

et al. 2023

ECS J. Solid State Sci. Technol.

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The manuscript focuses on the concept of nano-phosphors, a remarkable type of material that has been widely explored because of their diverse promising applications. Progress in the development of such nano-phosphors as luminescent materials has received significant research attention. The white-light-emitting diodes (WLEDs) have grown dramatically and represent the most intriguing lighting source of the twenty-first century. The contribution of rare-Earth (RE) ions to lighting technology is explicitly addressed. The additional physical characteristics of white light that are addressed in the present manuscript comprise the correlated color temperature (CCT), the color rendering index (CRI), and the Commission International de’ Eclairage (CIE) chromaticity coordinates. Multiple synthesis methods employed around the globe to produce such industrially important nano-phosphors along with more specialized and impactful techniques to characterize all such materials are thus thoroughly explored. Also, the various technologically significant applications of these materials are described. The evolution of these potentially suitable luminescent materials for WLEDs and their white-light characteristics is also outlined. The manuscript presents a comprehensive overview of the advancement and innovation of nano-phosphors, their application fields and the significant milestones of artificial lighting toward modernization.

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Effect of transition metal (TM = Mn, Co, Ni) doping on the structural, magnetic, and shielding properties of nano Er2O3

Heiba,

Mohamed,

Mouhammad

et al. 2024

Appl. Phys. A

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Fascinating functional properties of Mn:Gd2O3 nanocrystalline phosphor

Cited by 14 publications

References 37 publications

Synthesis and characterization of Gd₂O₃: Er³⁺, Yb³⁺ doped with Mg²⁺, Li⁺ ions—effect on the photoluminescence and biological applications

Synthesis and characterization of Gd₂O₃: Er³⁺, Yb³⁺ doped with Mg²⁺, Li⁺ ions—effect on the photoluminescence and biological applications

Review— On the Development of Phosphors for Luminescent Materials: Synthesis, Characterization, Applications and Evolution of Phosphors as White-Light-Emitting Diodes

Effect of transition metal (TM = Mn, Co, Ni) doping on the structural, magnetic, and shielding properties of nano Er2O3

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Fascinating functional properties of Mn:Gd2O3 nanocrystalline phosphor

Cited by 14 publications

References 37 publications

Synthesis and characterization of Gd2O3: Er3+, Yb3+ doped with Mg2+, Li+ ions—effect on the photoluminescence and biological applications

Synthesis and characterization of Gd2O3: Er3+, Yb3+ doped with Mg2+, Li+ ions—effect on the photoluminescence and biological applications

Review— On the Development of Phosphors for Luminescent Materials: Synthesis, Characterization, Applications and Evolution of Phosphors as White-Light-Emitting Diodes

Effect of transition metal (TM = Mn, Co, Ni) doping on the structural, magnetic, and shielding properties of nano Er2O3

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Product

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Synthesis and characterization of Gd₂O₃: Er³⁺, Yb³⁺ doped with Mg²⁺, Li⁺ ions—effect on the photoluminescence and biological applications

Synthesis and characterization of Gd₂O₃: Er³⁺, Yb³⁺ doped with Mg²⁺, Li⁺ ions—effect on the photoluminescence and biological applications