Enhance photoluminescence properties of Ca-Eu:Y2O3@SiO2 core–shell nanomaterial for the advanced forensic and LEDs applications

Dwivedi, Ashish; Singh, Anuradha; Srivastava, Monika; Srivastava, Alka; Kumar, Rajneesh; Srivastava, Sanjay

doi:10.1016/j.saa.2023.122782

Cited by 7 publications

(2 citation statements)

References 45 publications

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“…The absorption band centered at 528, 557, and 589 cm −1 can be ascribed to the Y-O lattice vibration. 39 The absorption band centered at 624, 680, 737, 763, and 841 cm −1 corresponds to the W-O stretching vibration and stretching vibrations W-O bonds in WO 3 •xH 2 O. Furthermore, the peak at about 1036, 1457 and 1743 cm −1 have been ascribed to C-O bond bending and stretching vibration of CO 3 2 − ion, respectively.…”

Section: Resultsmentioning

confidence: 94%

“…Furthermore, the peak at about 1036, 1457 and 1743 cm −1 have been ascribed to C-O bond bending and stretching vibration of CO 3 2 − ion, respectively. 39 These peaks of carbon are due to CO 2 absorbed from the air, while the bands at 1982, 2167 and 2323 cm −1 are associated with C-H stretching vibrations. 33,40 The broad band at 3734 cm −1 is assigned to the O-H stretching vibration.…”

Section: Resultsmentioning

confidence: 98%

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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

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: 94%

Section: Resultsmentioning

confidence: 98%

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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Synthesis and characterization of rare earth ion doped YVO4 thin film phosphors grown by PLD

Sharma,

Khanna,

Kumar

et al. 2024

J Mater Sci: Mater Electron

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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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Enhance photoluminescence properties of Ca-Eu:Y2O3@SiO2 core–shell nanomaterial for the advanced forensic and LEDs applications

Cited by 7 publications

References 45 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

Synthesis and characterization of rare earth ion doped YVO4 thin film phosphors grown by PLD

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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Enhance photoluminescence properties of Ca-Eu:Y2O3@SiO2 core–shell nanomaterial for the advanced forensic and LEDs applications

Cited by 7 publications

References 45 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

Synthesis and characterization of rare earth ion doped YVO4 thin film phosphors grown by PLD

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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Product

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About

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