Hydrothermal synthesis and luminescence properties of Dy3+ doped SrMoO4 nano-phosphor

Chavan, Ashonita; Gawande, A.B.; Gaikwad, V. B.; Jain, G. H.; Deore, M. K.

doi:10.1016/j.jlumin.2021.117996

Cited by 27 publications

(8 citation statements)

References 30 publications

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“…The produced SrMoO 4 :Eu 3+ phosphors synthesized by Yanan Zhu et al can be successfully activated by ultraviolet light at 396 nm and emit red light with a prominent peak at 616 nm [ 23 ]. Dy 3+ -doped SrMoO 4 nanophosphors were synthesized, which emit blue light at 485 nm and bright yellow light at 576 nm Under UV illumination at 353 nm [ 24 ]. SrWO 4 :Eu 3+ phosphor was synthesized using the microwave radiation heating approach.…”

Section: Introductionmentioning

confidence: 99%

Luminescent Properties and Charge Compensator Effects of SrMo0.5W0.5O4:Eu3+ for White Light LEDs

et al. 2023

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The high-temperature solid-phase approach was used to synthesize Eu3+-doped SrMo0.5W0.5O4 phosphors, whose morphological structure and luminescence properties were then characterized by XRD, SEM, FT-IR, excitation spectra, emission spectra, and fluorescence decay curves. The results reveal that the best phosphor synthesis temperature was 900 °C and that the doping of Eu3+ and charge compensators (K+, Li+, Na+, NH4+) had no effect on the crystal phase change. SrMo0.5W0.5O4:Eu3+ has major excitation peaks at 273 nm, 397 nm, and 464 nm, and a main emission peak at 615 nm, making it a potential red fluorescent material to be used as a down converter in UV LEDs (273 nm and 397 nm) and blue light LEDs (464 nm) to achieve Red emission. The emission spectra of Sr1−yMo0.5W0.5O4:yEu3+(y = 0.005, 0.01, 0.02, 0.05, 0.07) excited at 273 were depicted, with the Eu3+ concentration increasing the luminescence intensity first increases and then decreases, the emission peak intensity of SrMo0.5W0.5O4:Eu3+ achieves its maximum when the doping concentration of Eu3+ is 1%, and the critical transfer distance is calculated as 25.57 Å. When various charge compensators such as K+, Li+, Na+, and NH4+ are added to SrMo0.5W0.5O4:Eu3+, the NH4+ shows the best effect with the optimal doping concentration of 3wt%. The SrMo0.5W0.5O4:Eu3+,NH4+ color coordinate is (0.656,0.343), which is close to that of the ideal red light (0.670,0.333).

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Section: Introductionmentioning

confidence: 99%

Luminescent Properties and Charge Compensator Effects of SrMo0.5W0.5O4:Eu3+ for White Light LEDs

et al. 2023

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“…Rare earth phosphate (REPO4) doped with lanthanide ions has a tetrahedral rigid three-dimensional matrix structure. Its excellent luminous performance, long decay time, low toxicity, large tox shift and high photochemical stability make it an important matrix material for optoelectronic devices and biological fluorescence labeling [8,9].…”

Section: Introductionmentioning

confidence: 99%

Research on the progress of Ce³⁺,Tb³⁺ co-activated phosphate luminescent materials prepared by hydrothermal method

Ye²,

Yu³

et al. 2023

J. Phys.: Conf. Ser.

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Due to the special optical properties of rare earth elements, rare earth luminescent materials have been widely used in lighting, medical radiological images, detection and recording of radiation field and other fields. Through the research and analysis of phosphate LaPO4:(Ce3+,Tb3+), Ca9Y (PO4):(Ce3+,Tb3+), GdPO4:(Ce3+,Tb3+) composite materials by the hydrothermal preparation of cerium-terbium co-activated, the hydrothermal preparation process (additives, reaction system pH, hydrothermal time, hydrothermal temperature, etc.), luminescent properties and application status were clarified. XRD and SEM were used to analyze the effect of hydrothermal preparation process on the phase composition and morphology of samples, and the energy transfer efficiency was determined. PL spectroscopic analysis shows that the 4f→5d and 5D4→7Fj (j=6,5,4,3) transitions in Ce3+-Tb3+ UV region have been demonstrated in a variety of matrix materials, enabling efficient energy transfer in co-doped ion combinations., and the concentration of doping ions will significantly affect the luminescence properties.

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“…Under UV irradiation, Dy 3+ -activated phosphors usually presents three characteristic photoluminescent colors in the visible region, including 483 nm blue ( 4 F 9/2 → 6 H 15/2 transition), 672 nm red ( 4 F 9/2 → 6 H 11/2 transition) and 583 nm yellow ( 4 F 9/2 → 6 H 13/2 transition) emissions [18,24,25]. The electric dipole 4 F 9/2 → 6 H 13/2 transition intensity strongly depends on the local matrix symmetry, while the magnetic dipole 4 F 9/2 → 6 H 15/2 transition is insensitive to the matrix.…”

Section: Introductionmentioning

confidence: 99%

“…The electric dipole 4 F 9/2 → 6 H 13/2 transition intensity strongly depends on the local matrix symmetry, while the magnetic dipole 4 F 9/2 → 6 H 15/2 transition is insensitive to the matrix. Therefore, adjusting the composition of phosphorescence may change the yellow-blue emission intensity ratio to achieve near-white emitting light [24][25][26]. It is well known that the host and activator are two important components for luminescence.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Lu3+ Doping on the Structural Stability and Luminescence Performances of Gd3Al5O12:Dy Phosphors

Qian,

Sun,

Liang

et al. 2023

Metals

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Transparent ceramics (Gd0.975−xLuxDy0.025)3Al5O12 (x = 0.2, 0.5, 0.975) are fabricated by vacuum sintering with the transmittance of ~60% at 583 nm. The doping of Lu3+ was beneficial to stabilize the garnet phase, and the best doping concentration was 20 at.%. All three (Gd, Lu)3Al5O12:Dy ceramics display typical Dy3+ emission, originating from 4F9/2 → 6HJ (J = 15/2, 13/2, 11/2) transition. Temperature-dependent luminescence spectra from 303.15 K to 603.15 K prove that the (Gd, Lu)3Al5O12:Dy ceramics had good thermal stability and could be an ideal yellow-emitting candidate in light-emitting diodes. The luminous efficiency of the encapsulated white LED lamp was found to be ~87.9 lm/W when the injection current was 600 mA. The transparent (Gd, Lu)3Al5O12:Dy ceramics show great application potential in various optical systems especially in the fields of luminescence and display.

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Hydrothermal synthesis and luminescence properties of Dy3+ doped SrMoO4 nano-phosphor

Cited by 27 publications

References 30 publications

Luminescent Properties and Charge Compensator Effects of SrMo0.5W0.5O4:Eu3+ for White Light LEDs

Luminescent Properties and Charge Compensator Effects of SrMo0.5W0.5O4:Eu3+ for White Light LEDs

Research on the progress of Ce³⁺,Tb³⁺ co-activated phosphate luminescent materials prepared by hydrothermal method

The Effect of Lu3+ Doping on the Structural Stability and Luminescence Performances of Gd3Al5O12:Dy Phosphors

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Hydrothermal synthesis and luminescence properties of Dy3+ doped SrMoO4 nano-phosphor

Cited by 27 publications

References 30 publications

Luminescent Properties and Charge Compensator Effects of SrMo0.5W0.5O4:Eu3+ for White Light LEDs

Luminescent Properties and Charge Compensator Effects of SrMo0.5W0.5O4:Eu3+ for White Light LEDs

Research on the progress of Ce3+,Tb3+ co-activated phosphate luminescent materials prepared by hydrothermal method

The Effect of Lu3+ Doping on the Structural Stability and Luminescence Performances of Gd3Al5O12:Dy Phosphors

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Research on the progress of Ce³⁺,Tb³⁺ co-activated phosphate luminescent materials prepared by hydrothermal method