Optimizing the highly efficient cool-white luminescence via modulating Dy3+ ion into novel Sr6Al4Y2O15 nanocrystals for white LEDs

Sehrawat, Priyanka; Malik, R.K.; Punia, R.; Maken, Sanjeev

doi:10.1007/s10854-021-06837-y

Cited by 19 publications

(1 citation statement)

References 42 publications

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“…The calculated D r values are found to be 5.6% for Y 3+ and Eu 3+ ions and 30.7% for Eu 3+ and W 6+ ions. The D r of Y 3+ and Eu 3+ ions lies within the acceptable range (<30%), [27][28][29][30] confirming the substitution of Eu 3+ at the Y 3+ site rather than W 6+ sites in the Y 2 WO 6 matrix.…”

Section: Resultsmentioning

confidence: 62%

Structural and Spectroscopic Analysis of Reddish-Orange Emitting (Y_1−x)₂WO₆:xEu³⁺ (0 ≤ x ≤ 0.11) Nanophosphors for Anti-Counterfeiting Application

Gupt,

H. B.,

Nunez

et al. 2024

ECS J. Solid State Sci. Technol.

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Exploring luminescent materials that meet the necessary specifications for anti-counterfeiting applications has been the focus of extensive research. In this study, we delve into a double perovskite-structured material, (Y1-x)2WO6:xEu3+ (0≤x≤0.11), synthesized via a chemical combustion method. The crystallographic studies using the X-ray diffraction pattern confirm the crystallization of the nanophosphors into the monoclinic phase with a P2/c space group. The Raman and Fourier transform infrared spectroscopy studies provide insights into the nature of chemical bonding within the material. UV visible spectra are analysed to determine the optical energy gap. Notably, the photoluminescence emission spectra of the Eu3+ incorporated phosphors exhibit a distinct emission peak at 609nm, corresponding to the 5D0→7F2 electric dipole transition of the Eu3+ ions. The optimal photoluminescence intensity is observed for the x=0.07 nanophosphor, with estimated chroma coordinates of (0.500, 0.316), placing it in the reddish-orange region of the chromaticity diagram. The incorporation of Eu3+ enhances magnetization, attributed to the presence of Eu3+ ions in the 7F2 state. The luminance stability is a critical factor for long-term performance, the x=0.07 phosphor was analysed under rigorous physical and chemical testing and is found to be stable, making it a favourable candidate as a luminescence pigment for anti-counterfeiting applications.

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Section: Resultsmentioning

confidence: 62%

Structural and Spectroscopic Analysis of Reddish-Orange Emitting (Y_1−x)₂WO₆:xEu³⁺ (0 ≤ x ≤ 0.11) Nanophosphors for Anti-Counterfeiting Application

Gupt,

H. B.,

Nunez

et al. 2024

ECS J. Solid State Sci. Technol.

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Green innovation: cool white light emission from inorganic ZnS nanoparticles with tunable structural and optical properties

Surendran,

Tintu

2024

J Mater Sci: Mater Electron

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A study on the structural, morphological, spectral properties of BaTa2O6:RE3+, B3+ (RE = Sm, Dy) phosphors and the comparison of asymmetry ratios based on the hypersensitive transition of BaTa2O6:Eu3+, B3+ phosphor

İlhan,

Güleryüz

2024

J Mater Sci: Mater Electron

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Optimizing the highly efficient cool-white luminescence via modulating Dy3+ ion into novel Sr6Al4Y2O15 nanocrystals for white LEDs

Cited by 19 publications

References 42 publications

Structural and Spectroscopic Analysis of Reddish-Orange Emitting (Y_1−x)₂WO₆:xEu³⁺ (0 ≤ x ≤ 0.11) Nanophosphors for Anti-Counterfeiting Application

Structural and Spectroscopic Analysis of Reddish-Orange Emitting (Y_1−x)₂WO₆:xEu³⁺ (0 ≤ x ≤ 0.11) Nanophosphors for Anti-Counterfeiting Application

Green innovation: cool white light emission from inorganic ZnS nanoparticles with tunable structural and optical properties

A study on the structural, morphological, spectral properties of BaTa2O6:RE3+, B3+ (RE = Sm, Dy) phosphors and the comparison of asymmetry ratios based on the hypersensitive transition of BaTa2O6:Eu3+, B3+ phosphor

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Optimizing the highly efficient cool-white luminescence via modulating Dy3+ ion into novel Sr6Al4Y2O15 nanocrystals for white LEDs

Cited by 19 publications

References 42 publications

Structural and Spectroscopic Analysis of Reddish-Orange Emitting (Y1−x)2WO6:xEu3+ (0 ≤ x ≤ 0.11) Nanophosphors for Anti-Counterfeiting Application

Structural and Spectroscopic Analysis of Reddish-Orange Emitting (Y1−x)2WO6:xEu3+ (0 ≤ x ≤ 0.11) Nanophosphors for Anti-Counterfeiting Application

Green innovation: cool white light emission from inorganic ZnS nanoparticles with tunable structural and optical properties

A study on the structural, morphological, spectral properties of BaTa2O6:RE3+, B3+ (RE = Sm, Dy) phosphors and the comparison of asymmetry ratios based on the hypersensitive transition of BaTa2O6:Eu3+, B3+ phosphor

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Product

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Structural and Spectroscopic Analysis of Reddish-Orange Emitting (Y_1−x)₂WO₆:xEu³⁺ (0 ≤ x ≤ 0.11) Nanophosphors for Anti-Counterfeiting Application

Structural and Spectroscopic Analysis of Reddish-Orange Emitting (Y_1−x)₂WO₆:xEu³⁺ (0 ≤ x ≤ 0.11) Nanophosphors for Anti-Counterfeiting Application