Tunable emission in Ln3+ (Ce3+/Dy3+, Ce3+/Tb3+) doped KNa3Al4Si4O16 phosphor synthesized by combustion method

Kolte, M.; Pawade, Vijay B.; Bhattacharya, Asit Baran; Dhoble, S.J.

doi:10.1016/j.jpcs.2018.02.004

Cited by 12 publications

(3 citation statements)

References 42 publications

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“…Dy 3+ ions, which enhances the emission intensity of Dy 3+ ions. [27][28][29][30] Figure 12 shows that the luminescence intensity of the Ce 3+ band in K 4 Ca(PO 4 ) 2 :Ce 3+ /Dy 3+ and the ET spectral band was found to be maximum at 0.3 mol%, as compared to singly doped Ce 3+ :K 4 Ca(PO 4 ) 2 phosphor, which was observed at 0.7 mol%; later it decreased with increase in concentration of Dy 3+ ions; simultaneously, the emission intensity of the Dy 3+ ions increased, and it was found to be maximum at 0.1 mol%, which is clearly shown in Figure 13, which supports the occurrence of ET from Ce 3+ ! Dy 3+…”

Section: Pl Studymentioning

confidence: 99%

Optical and thermal properties of rare earth–doped K₄Ca(PO₄)₂ phosphor

Mushtaque¹,

Pawade²,

Dhoble

2023

Luminescence

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The luminescent properties and energy transfer (ET) mechanism in the Ln 3+ pair of the RE 3+ (RE = Eu 3+ , Ce 3+ , Dy 3+ and Sm 3+ ) doped K 4 Ca(PO 4 ) 2 phosphor were successfully investigated using a conventional high-temperature solid-state reaction. In the near infrared (NIR) range, Ce 3+ -doped K 4 Ca(PO 4 ) 2 phosphor exhibited a UV-Vis. emission band, whereas K 4 Ca(PO 4 ) 2 :Dy 3+ exhibited characteristic emission bands centred at 481 and 576 nm in the near-ultraviolet excitation range.The possibility of ET from Ce 3+ to Dy 3+ in K 4 Ca(PO 4 ) 2 phosphor was confirmed by a significant increase in the photoluminescence intensity of the Dy 3+ ion based on the spectral overlap of acceptor and donor ions. X-ray diffraction, Fourier-transform infrared and thermogravimetric analysis/differential thermal analysis TGA/DTA were carried out to study phase purity, presence of functional groups and amount of weight loss under different temperature regimes. Therefore, the RE 3+ -doped K 4 Ca(PO 4 ) 2 phosphor may be a stable phosphor host for light-emitting diode applications.

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Section: Pl Studymentioning

confidence: 99%

Optical and thermal properties of rare earth–doped K₄Ca(PO₄)₂ phosphor

Mushtaque¹,

Pawade²,

Dhoble

2023

Luminescence

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show abstract

“…This difference is slightly higher compared with the reported energy level differences in the Ce 3+ iondoped phosphates. [28][29][30][31] 3.2.2 | NaSrPO 4 :Sm 3+ Figure 8 shows the PL excitation (PLE) bands of the NaSrPO 4 :Sm 3+ phosphor, which exhibited four bands located at 345 nm, 361 nm, 375 nm, and 403 nm, monitored under the 598 nm emission wavelength. These bands originated from the f-f transitions 6 H 5/2 -4 D 3/2 , 6 H 5/2 -6 P 7/2 , and 6 H 5/2 -6 P 3/2 of the Sm 3+ ion.…”

Section: Nasrpo 4 :Ce 3+mentioning

confidence: 99%

“…This difference is slightly higher compared with the reported energy level differences in the Ce 3+ ion‐doped phosphates. [ 28–31 ]…”

Section: Characterizationmentioning

confidence: 99%

Energy transfer process in a rare earth (Ce³⁺, Dy³⁺, Sm³⁺)‐doped nanocrystalline phosphate phosphor

Mushtaque¹,

Pawade²,

Dhoble

2022

Luminescence

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This work presents the optimized luminescence spectra for the Ce 3+ ,Sm 3+ -doped NaSrPO 4 phosphor that was synthesized using a wet chemical method. Ce 3+ and Sm 3+ are activator impurities that show spectral splitting bands that corresponds to the d-f and f-f transitions, respectively. These impurity elements shows the characteristics spectral bands when doped with the NaSrPO 4 host lattice. Spectral splitting in the Ce 3+ excitation band was monitored in the 240-340 nm range, in which the observed bands were located at 269 nm, 292 nm and 321 nm, and emission bands were observed in the broad spectral range 330-430 nm. However, when Sm 3+ ion was doped in the same host lattice we obtained a characteristic emission band at 590 and 645 nm in the orange-red region, under sharp excitation bands located at 345, 361, 375, and 403 nm respectively. Also, we carried out energy transfer analysis in the Ce 3+ /Dy 3+ -doped NaSrPO 4 phosphor. Further crystalline phase and the nanophase nature of the phosphor compound were confirmed using X-ray diffraction and transmission electron microscopy analyses.

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Optical properties of Ln2+,3+ (Ln = Eu2+, Ce3+, Dy3+ and Ce3+/Dy3+) doped BaMg2Al6Si9O30 nanophosphor

Kolte¹,

Pawade

Koao

et al. 2018

J Mater Sci: Mater Electron

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Tunable emission in Ln3+ (Ce3+/Dy3+, Ce3+/Tb3+) doped KNa3Al4Si4O16 phosphor synthesized by combustion method

Cited by 12 publications

References 42 publications

Optical and thermal properties of rare earth–doped K₄Ca(PO₄)₂ phosphor

Optical and thermal properties of rare earth–doped K₄Ca(PO₄)₂ phosphor

Energy transfer process in a rare earth (Ce³⁺, Dy³⁺, Sm³⁺)‐doped nanocrystalline phosphate phosphor

Optical properties of Ln2+,3+ (Ln = Eu2+, Ce3+, Dy3+ and Ce3+/Dy3+) doped BaMg2Al6Si9O30 nanophosphor

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Tunable emission in Ln3+ (Ce3+/Dy3+, Ce3+/Tb3+) doped KNa3Al4Si4O16 phosphor synthesized by combustion method

Cited by 12 publications

References 42 publications

Optical and thermal properties of rare earth–doped K4Ca(PO4)2 phosphor

Optical and thermal properties of rare earth–doped K4Ca(PO4)2 phosphor

Energy transfer process in a rare earth (Ce3+, Dy3+, Sm3+)‐doped nanocrystalline phosphate phosphor

Optical properties of Ln2+,3+ (Ln = Eu2+, Ce3+, Dy3+ and Ce3+/Dy3+) doped BaMg2Al6Si9O30 nanophosphor

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Optical and thermal properties of rare earth–doped K₄Ca(PO₄)₂ phosphor

Optical and thermal properties of rare earth–doped K₄Ca(PO₄)₂ phosphor

Energy transfer process in a rare earth (Ce³⁺, Dy³⁺, Sm³⁺)‐doped nanocrystalline phosphate phosphor