Synthesis and luminescent properties of trivalent rare-earth (Eu3+, Tb3+) ions doped nanocrystalline AgLa(PO3)4 polyphosphates

Bharat, L. Krishna; Jeon, Yong Il; Yu, Jae Su

doi:10.1016/j.jallcom.2014.06.108

Cited by 19 publications

(2 citation statements)

References 25 publications

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“… 39 A broad band can be observed in the 1400–400 cm –1 range due to the presence of different PO 4 tetrahedra. 40 The μ HA- and n HA-doped surfaces demonstrate a strong characteristic band centred at 1050–1200 cm –1 and small features at 445 and 560–600 cm –1 corresponding to the (PO 4 ) 3– vibrations. This confirms incorporation of HA micro- and nanoparticles in the TiO 2 matrix during PEO process.…”

Section: Resultsmentioning

confidence: 96%

Characteristics and in vitro response of thin hydroxyapatite–titania films produced by plasma electrolytic oxidation of Ti alloys in electrolytes with particle additions

et al. 2016

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Section: Resultsmentioning

confidence: 96%

Characteristics and in vitro response of thin hydroxyapatite–titania films produced by plasma electrolytic oxidation of Ti alloys in electrolytes with particle additions

et al. 2016

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“…Researchers have recently explored alkali and alkaline-earthmetal phosphate phosphors to develop new materials for UV-based w-LEDs. Many studies have focused on AB(PO 3 ) 3 phosphates, with A representing monovalent cations (Li + , Na + , K + , and Cs + ) and B representing divalent cations (Ca 2+ , Sr 2+ , and Ba 2+ ) [9,10]. These phosphates have efficient thermal and hydrolytic stabilities, making them ideal host materials for w-LEDs.…”

Section: Introductionmentioning

confidence: 99%

Dy³⁺ doped KCa(PO₃)₃ phosphor for white light generation: structural and luminescent studies

Deepti,

Maurya,

Kumari

et al. 2024

Phys. Scr.

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Using the traditional solid-state reaction approach, Dy3+ ions doped KCa(PO3)3 phosphors have been synthesized to investigate their luminescent properties to produce high-quality white light for solid-state lighting applications, particularly in white LEDs. X-ray diffraction (XRD) patterns were used to examine the structure and phase of the phosphors. Using scanning electron microscopy (SEM), the morphology of the as-synthesized phosphor has been investigated. Fourier transform infrared spectroscopy (FT-IR) has been used to investigate several vibrational bands seen in the phosphor. Using diffuse reflectance spectra (DRS), the as-synthesized phosphors' optical band gap values have been estimated. When Dy3+ ions are excited at 350 nm, the photoluminescence (PL) spectra characteristics observed for the activated KCa(PO3)3 phosphor show strong white area emission at 575 nm, which is related to the 4F99/2 → 6H13/2 transition of Dy3+ ions. Additionally, the concentration quenching of Dy3+ ions doped at 4 mol% is seen in the PL spectra. Based on the observed PL spectra, the computed CIE chromaticity coordinates for the doped KCa(PO3)3 phosphors show that the optimised 4.0mol% Dy3+ doped phosphor is located in the deep white area. The lifespan of the as-titled phosphors decreases as the amount of Dy3+ ions increases in the host lattice. Additionally, the PL decay profiles shows a dual exponential behaviour when excited at 350 nm, with an emission wavelength at 575 nm. On the basis of the results of the aforementioned studies, we wish to project Dy3+ ion doped KCa(PO3)3 phosphors as white light generating materials in w-LEDs and for other photonic applications.

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Luminescence properties of a novel red phosphor 6LaPO₄–3La₃PO₇–2La₇P₃O₁₈:Eu³⁺

Wang

2019

Luminescence

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Eu 3+ -doped 6LaPO 4 -3La 3 PO 7 -2La 7 P 3 O 18 red luminescent phosphors were synthesized by co-deposition and high-temperature solid-state methods and its polyphase state was confirmed by X-ray diffraction analysis. Transmission electron microscopy showed the grain morphology as a mixture of rods and spheres. Luminescence properties of the phosphor were investigated and its red emission parameters were evaluated as a function of Eu 3+ concentration (3.00-6.00 mol%). Excitation spectra of 6LaPO 4 -3La 3 PO 7 -2La 7 P 3 O 18 :Eu 3+ showed strong absorption bands at 280, 395, and 466 nm, while the luminescence spectra exhibited prominent red emission peak centred at 615 nm ( 5 D 0 → 7 F 2 ) in the red region. CIE chromaticity coordinates of the 6LaPO 4 -3La 3 PO 7 -2La 7 P 3 O 18 :5%Eu 3+ phosphor were (0.668, 0.313) in the red region, and defined its potential application as a red phosphor.

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Synthesis and luminescent properties of trivalent rare-earth (Eu3+, Tb3+) ions doped nanocrystalline AgLa(PO3)4 polyphosphates

Cited by 19 publications

References 25 publications

Characteristics and in vitro response of thin hydroxyapatite–titania films produced by plasma electrolytic oxidation of Ti alloys in electrolytes with particle additions

Characteristics and in vitro response of thin hydroxyapatite–titania films produced by plasma electrolytic oxidation of Ti alloys in electrolytes with particle additions

Dy³⁺ doped KCa(PO₃)₃ phosphor for white light generation: structural and luminescent studies

Luminescence properties of a novel red phosphor 6LaPO₄–3La₃PO₇–2La₇P₃O₁₈:Eu³⁺

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Synthesis and luminescent properties of trivalent rare-earth (Eu3+, Tb3+) ions doped nanocrystalline AgLa(PO3)4 polyphosphates

Cited by 19 publications

References 25 publications

Characteristics and in vitro response of thin hydroxyapatite–titania films produced by plasma electrolytic oxidation of Ti alloys in electrolytes with particle additions

Characteristics and in vitro response of thin hydroxyapatite–titania films produced by plasma electrolytic oxidation of Ti alloys in electrolytes with particle additions

Dy3+ doped KCa(PO3)3 phosphor for white light generation: structural and luminescent studies

Luminescence properties of a novel red phosphor 6LaPO4–3La3PO7–2La7P3O18:Eu3+

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Dy³⁺ doped KCa(PO₃)₃ phosphor for white light generation: structural and luminescent studies

Luminescence properties of a novel red phosphor 6LaPO₄–3La₃PO₇–2La₇P₃O₁₈:Eu³⁺