Effect of Ba2+ doping on the photoluminescence of YVO4: Eu3+ phosphor and first principles calculations

Zhao, Tianxiang; Chen, Nan; Du, Guoping; Jiang, Changshuang

doi:10.1016/j.jlumin.2020.117117

Cited by 11 publications

(2 citation statements)

References 36 publications

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“…where I t and I 0 are the emission intensities at time t and initial time, A is a constant and τ is decay time. The high thermal resistance of phosphors is very important for the high optical performance of WLED devices and their consequent practical applicability in solid-state lighting [35]. The thermal quenching properties of the Na 2 YMg 2 V 3 O 12 :0.2Eu 3+ phosphor were tested by obtaining temperature-dependent emission spectra under excitation at 365 nm.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Photoluminescence Properties of Eu3+-Doped Na2YMg2V3O12: A Novel Red-Emitting Phosphor for White-Light-Emitting Diodes

Zhang¹,

Shao²,

Zhu³

et al. 2021

Preprint

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The fabrication and luminescent properties of novel Na2YMg2V3O12:Eu3+ phosphors produced by conventional solid-state reactions were investigated. Self-activated emission of the Na2YMg2V3O12 host produces a broad emission band ranging from 400 to 700 nm with a maximum peak at 530 nm, ascribed to the charge transfer in the (VO4)3− groups. Excitation with near-UV (365 nm) light causes the Na2YMg2V3O12:Eu3+ phosphors to emit bright red light, including both the broad emission band of the (VO4)3− groups and the sharp emission peaks of Eu3+ ions. At a quenching concentration of 0.03 mol, the Eu3+ ion emission peaks were located at 597, 613, 654 and 710 nm. As-prepared Na2YMg2V3O12:Eu3+ phosphors also exhibited stable emission at high temperatures. Furthermore, a designed and packaged white-light-emitting diode (WLED) lamp, including the obtained phosphors, commercial (Ba,Sr)2SiO4:Eu2+ green phosphors, BaMgAl10O17:Eu2+ blue phosphors and a near-ultraviolet (n-UV) chip, emitted bright white light with a good chromaticity coordinate of (0.3068, 0.3491), a satisfactory colour rendering index of 88.20 and a properly correlated colour temperature of 4460.52 K. These results indicate the potential of this Na2YMg2V3O12:Eu3+ phosphor as a red-emitting phosphor for solid-state illumination.

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Section: Resultsmentioning

confidence: 99%

Synthesis and Photoluminescence Properties of Eu3+-Doped Na2YMg2V3O12: A Novel Red-Emitting Phosphor for White-Light-Emitting Diodes

Zhang¹,

Shao²,

Zhu³

et al. 2021

Preprint

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“…White-LEDs have broad applications in various fields, including lighting, lasers, displays, biomedicines, and so on, and represent a new generation of energy-saving and friendly light sources [4][5][6][7]. At present, the commercial white-LEDs are a combination of yellow-emittingY 3 Al 5 O 12 :Ce 3+ (YAG:Ce 3+ ) phosphor and blue-emitting InGaN LED chip [8][9][10]. Nevertheless, the lack of a red-emitting component results in white light that is poor in terms of color rendering index (CRI) and color reproduction [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Multi‐color luminescence of Sm³⁺‐doped Na₂YMg₂V₃O₁₂ phosphor potentially applicable in white‐LEDs

et al. 2023

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A novel multi‐color emitting Na2YMg2V3O12:Sm3+ phosphor was synthesized using a solid‐state reaction, and its crystal structure, luminescence properties, and thermal stability were studied. Charge transfer within the (VO4)3− groups in the Na2YMg2V3O12 host led to a broad emission band between 400 and 700 nm, with a maximum at 530 nm. The Na2Y1−xMg2V3O12:xSm3+ phosphors exhibited a multi‐color emission band under 365 nm near‐ultraviolet (near‐UV) light, consisting of the green emission of the (VO4)3− groups and sharp emission peaks at 570 nm (yellow), 618 nm (orange), 657 nm (red), and 714 nm (deep red) of Sm3+ ions. The optimal doping concentration of Sm3+ ions was found to be 0.05 mol%, and the dipole–dipole (d–d) interaction was primarily responsible for the concentration quenching phenomenon. Using the acquired Na2YMg2V3O12:Sm3+ phosphors, commercial BaMgAl10O17:Eu2+ blue phosphor, and a near‐UV light‐emitting diode (LED) chip, a white‐LED lamp was designed and packaged. It produced bright neutral white light, manifesting a CIE coordinate of (0.314, 0.373), a color rendering index (CRI) of 84.9, and a correlated color temperature (CCT) of 6377 K. These findings indicate the potential of Na2YMg2V3O12:Sm3+ phosphor to be used as a multi‐color component for solid‐state illumination.

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Exploring Optically Stable Reddish-Orange Fluorescent Magnetic Pigment (0.90)Y2O3:(0.10-x)Eu3+:(x)Bi3+ for Anti-counterfeiting Applications

Gupt,

Premkumar,

Nunez

et al. 2023

J Fluoresc

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Effect of Ba2+ doping on the photoluminescence of YVO4: Eu3+ phosphor and first principles calculations

Cited by 11 publications

References 36 publications

Synthesis and Photoluminescence Properties of Eu3+-Doped Na2YMg2V3O12: A Novel Red-Emitting Phosphor for White-Light-Emitting Diodes

Synthesis and Photoluminescence Properties of Eu3+-Doped Na2YMg2V3O12: A Novel Red-Emitting Phosphor for White-Light-Emitting Diodes

Multi‐color luminescence of Sm³⁺‐doped Na₂YMg₂V₃O₁₂ phosphor potentially applicable in white‐LEDs

Exploring Optically Stable Reddish-Orange Fluorescent Magnetic Pigment (0.90)Y2O3:(0.10-x)Eu3+:(x)Bi3+ for Anti-counterfeiting Applications

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Effect of Ba2+ doping on the photoluminescence of YVO4: Eu3+ phosphor and first principles calculations

Cited by 11 publications

References 36 publications

Synthesis and Photoluminescence Properties of Eu3+-Doped Na2YMg2V3O12: A Novel Red-Emitting Phosphor for White-Light-Emitting Diodes

Synthesis and Photoluminescence Properties of Eu3+-Doped Na2YMg2V3O12: A Novel Red-Emitting Phosphor for White-Light-Emitting Diodes

Multi‐color luminescence of Sm3+‐doped Na2YMg2V3O12 phosphor potentially applicable in white‐LEDs

Exploring Optically Stable Reddish-Orange Fluorescent Magnetic Pigment (0.90)Y2O3:(0.10-x)Eu3+:(x)Bi3+ for Anti-counterfeiting Applications

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Multi‐color luminescence of Sm³⁺‐doped Na₂YMg₂V₃O₁₂ phosphor potentially applicable in white‐LEDs