Preparation and Luminescent Properties of Na&lt;sub&gt;5&lt;/sub&gt;Eu(MoO&lt;sub&gt;4&lt;/sub&gt;)&lt;sub&gt;4-x&lt;/sub&gt;(PO&lt;sub&gt;4&lt;/sub&gt;)&lt;sub&gt;x&lt;/sub&gt; Red Phosphors for White Light-Emitting Diodes Application

Xi, Cui Sheng; Shi, Shi Kao; Gong, Hui Li; Zhou, Ji

doi:10.4028/www.scientific.net/msf.654-656.2025

Cited by 4 publications

(1 citation statement)

References 8 publications

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“…Subtle anion substitution shrinks the unit cell and promotes a more compact crystal structure without changing the crystal structure type, thus improving the thermal quenching of luminescence. 44,45 Therefore, due to the existence of different anionic structural phases, high crystal rigidity and more absorption of incident light give rise to enhance the luminous intensity.…”

Section: Effect Of Somentioning

confidence: 99%

Emission Enhancement of Eu³⁺ Ions in LiY(PO₃)₄ Phosphate Phosphors via Anionic SO₄ ²⁻ Substitution

Qiao¹,

Zhao²,

Xu³

et al. 2023

ECS J. Solid State Sci. Technol.

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Eu3+-doped LiY(PO3)4(1-x)(SO4)4x (LYSO:Eu) phosphors are synthesized by high-temperature solid-phase method and the crystal structure, microscopic morphology, and photo-spectrographic characteristics are analyzed. The phosphor exhibits the strongest excitation peak at 397 nm, which indicates that the sample can be effectively excited by the near-ultraviolet/ultraviolet LED chip. The characteristic emission peaks of Eu3+ ion 5D0→7FJ (J = 1 ~ 4) are observed from the PL spectrum, and the orange emission peak originating from the magnetic dipole transition 5D0→7F1 of Eu3+ is located near 597 nm. When the SO42- concentration exceeds 22.5 mol%, the quenching of the phosphor occurs. The Eu3+ emission still retains 78.8% of the initial strength at 495 K, with excellent thermal stability. The emission intensity is decreased with the increase of SO42- concentration, indicating that the SO42- co-doping led to an increase in the probability of non-radiative transitions. The best quantum efficiency of the LiY0.95(PO3)2.6(SO4)1.4: 0.05Eu3+ sample is 86.65%, and the CIE chromaticity coordinates of this sample are (0.653, 0.347), which are close to the international standard red color coordinates (0.67, 0.33). These results indicate that LYSO:Eu has a good application prospect in NUV/UV excited white LEDs. Influence of anionic substitutions of SO42- to the optical properties is discussed.

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Section: Effect Of Somentioning

confidence: 99%

Emission Enhancement of Eu³⁺ Ions in LiY(PO₃)₄ Phosphate Phosphors via Anionic SO₄ ²⁻ Substitution

Qiao¹,

Zhao²,

Xu³

et al. 2023

ECS J. Solid State Sci. Technol.

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Synthesis and luminescence properties of NaLa(MoO 4 ) 2− x AG x :Eu 3+ (AG = SO 4 2 − , BO 3 3 − ) red phosphors for white light emitting diodes

Zhang

Wang

et al. 2015

Journal of Alloys and Compounds

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Structural evolution induced by substitution of designated molybdate sites (MoO4−2) with different anionic groups (BO3−3, PO4−3 and SO4−2) in CaMoO4:Sm3+ phosphors-A study on color tunable luminescent properties

Balakrishna

Swart

Ramaraghavulu

et al. 2017

Journal of Alloys and Compounds

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Preparation and Luminescent Properties of Na<sub>5</sub>Eu(MoO<sub>4</sub>)<sub>4-x</sub>(PO<sub>4</sub>)<sub>x</sub> Red Phosphors for White Light-Emitting Diodes Application

Cited by 4 publications

References 8 publications

Emission Enhancement of Eu³⁺ Ions in LiY(PO₃)₄ Phosphate Phosphors via Anionic SO₄ ²⁻ Substitution

Emission Enhancement of Eu³⁺ Ions in LiY(PO₃)₄ Phosphate Phosphors via Anionic SO₄ ²⁻ Substitution

Synthesis and luminescence properties of NaLa(MoO 4 ) 2− x AG x :Eu 3+ (AG = SO 4 2 − , BO 3 3 − ) red phosphors for white light emitting diodes

Structural evolution induced by substitution of designated molybdate sites (MoO4−2) with different anionic groups (BO3−3, PO4−3 and SO4−2) in CaMoO4:Sm3+ phosphors-A study on color tunable luminescent properties

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Preparation and Luminescent Properties of Na<sub>5</sub>Eu(MoO<sub>4</sub>)<sub>4-x</sub>(PO<sub>4</sub>)<sub>x</sub> Red Phosphors for White Light-Emitting Diodes Application

Cited by 4 publications

References 8 publications

Emission Enhancement of Eu3+ Ions in LiY(PO3)4 Phosphate Phosphors via Anionic SO4 2− Substitution

Emission Enhancement of Eu3+ Ions in LiY(PO3)4 Phosphate Phosphors via Anionic SO4 2− Substitution

Synthesis and luminescence properties of NaLa(MoO 4 ) 2− x AG x :Eu 3+ (AG = SO 4 2 − , BO 3 3 − ) red phosphors for white light emitting diodes

Structural evolution induced by substitution of designated molybdate sites (MoO4−2) with different anionic groups (BO3−3, PO4−3 and SO4−2) in CaMoO4:Sm3+ phosphors-A study on color tunable luminescent properties

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Emission Enhancement of Eu³⁺ Ions in LiY(PO₃)₄ Phosphate Phosphors via Anionic SO₄ ²⁻ Substitution

Emission Enhancement of Eu³⁺ Ions in LiY(PO₃)₄ Phosphate Phosphors via Anionic SO₄ ²⁻ Substitution