Color-tunable luminescence performance of single-component Na5Y(MoO4)4:Dy3+, Tm3+ white-emitting phosphor for white light-emitting diodes

Zhao, Zhou; Deng, Miao; Yang, Zong‐Feng; Wu, Qiqi; Zhang, Wentao

doi:10.1016/j.ceramint.2022.04.211

Cited by 17 publications

(1 citation statement)

References 45 publications

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“…Now, selecting the appropriate host medium is also essential when preparing luminous materials for a variety of applications. Recent researches has focused on inorganic luminescent materials using substrates like molybdate [21,22], tungstate [23,24], phosphate [25], vanadate [26] and silicate [27] etc. Since tungstates have strong covalent interaction, high stability, and strong visible luminescence, more suitable as host materials for its potential applications in lasers, optical fibers, w-LEDs, plasma display panels, quantum electronics, phosphors, scintillators when doped with suitable RE 3+ ions [28].…”

Section: Introductionmentioning

confidence: 99%

Spectral studies of thermally stable Dy³⁺/Sm³⁺ co-doped Li₂Ba₅W₃O₁₅ phosphors for warm white LEDs

Anu,

Kumari,

Deopa

et al. 2024

J. Phys. D: Appl. Phys.

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In the current study, a series of Li2Ba5W3O15: RE3+ (RE=Dy, Sm) [LBW:Dy3+/Sm3+] phosphors were prepared using a high-temperature solid-state method. X-ray diffraction (XRD), Scanning electron microscopy (SEM) with Energy-dispersive X-ray analysis (EDX) scans showed that the crystal form was consistent with the standard LBW and comprised small irregularly shaped particles. Diffuse reflectance spectral (DRS) data was utilized to calculate the band gaps. Fluorescence study shows that LBW material doped with Dy3+ and Sm3+ yield distinct colors at 496 nm (blue) for Dy3+ and 582 nm (green-yellow), 612 nm (yellow), and 669 nm (red) for Sm3+ when excited by near-ultraviolet (n-UV) (336 nm) light. The observation of energy transfer (ET) between Dy3+ and Sm3+ ions play a role in modifying the luminescence of LBW:Dy3+/Sm3+ co-doped phosphors. With a constant excitation wavelength (λEx), different levels of activator doping lead to a change in the emission colors from their neutral white light to a deep orange-red region for LBW:Dy3+/Sm3+ phosphors. The decay curves demonstrate a decrease in lifetime with an increase in the concentration of activator ions (Sm3+). For D3S5 phosphor, the temperature-dependent photoluminescence (TDPL) characteristics were analysed under λEx = 336 nm excitation. The results indicate excellent luminescence thermal stability with an activation energy of 0.16 eV at λEx = 336 nm. With its low color-correlated temperature (CCT) and good thermal stability, the prepared phosphor sample shows potential as a solid-state emitting phosphor that can be used with UV chip stimulation for warm white LED applications.

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Section: Introductionmentioning

confidence: 99%

Spectral studies of thermally stable Dy³⁺/Sm³⁺ co-doped Li₂Ba₅W₃O₁₅ phosphors for warm white LEDs

Anu,

Kumari,

Deopa

et al. 2024

J. Phys. D: Appl. Phys.

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Lattice occupation and luminous properties of the K3YSi2O7:Tm3+,Dy3+ phosphor for NUV-excited white LEDs

Liang,

Song,

et al. 2024

Appl. Phys. A

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Dy3+/Tm3+ activated single-phase tungstate phosphors with anti-thermal quenching and tunable luminescence properties for white LEDs applications

Gu,

Xie,

Wang

et al. 2024

Ceramics International

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Color-tunable luminescence performance of single-component Na5Y(MoO4)4:Dy3+, Tm3+ white-emitting phosphor for white light-emitting diodes

Cited by 17 publications

References 45 publications

Spectral studies of thermally stable Dy³⁺/Sm³⁺ co-doped Li₂Ba₅W₃O₁₅ phosphors for warm white LEDs

Spectral studies of thermally stable Dy³⁺/Sm³⁺ co-doped Li₂Ba₅W₃O₁₅ phosphors for warm white LEDs

Lattice occupation and luminous properties of the K3YSi2O7:Tm3+,Dy3+ phosphor for NUV-excited white LEDs

Dy3+/Tm3+ activated single-phase tungstate phosphors with anti-thermal quenching and tunable luminescence properties for white LEDs applications

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Color-tunable luminescence performance of single-component Na5Y(MoO4)4:Dy3+, Tm3+ white-emitting phosphor for white light-emitting diodes

Cited by 17 publications

References 45 publications

Spectral studies of thermally stable Dy3+/Sm3+ co-doped Li2Ba5W3O15 phosphors for warm white LEDs

Spectral studies of thermally stable Dy3+/Sm3+ co-doped Li2Ba5W3O15 phosphors for warm white LEDs

Lattice occupation and luminous properties of the K3YSi2O7:Tm3+,Dy3+ phosphor for NUV-excited white LEDs

Dy3+/Tm3+ activated single-phase tungstate phosphors with anti-thermal quenching and tunable luminescence properties for white LEDs applications

Contact Info

Product

Resources

About

Spectral studies of thermally stable Dy³⁺/Sm³⁺ co-doped Li₂Ba₅W₃O₁₅ phosphors for warm white LEDs

Spectral studies of thermally stable Dy³⁺/Sm³⁺ co-doped Li₂Ba₅W₃O₁₅ phosphors for warm white LEDs