Synthesis and photoluminescence study of Ce3+ ion-activated Na2ZnP2O7 and Na4P2O7 pyrophosphate phosphors

Bhake, A. M.; Parauha, Yatish R.; Dhoble, S.J.

doi:10.1007/s10854-019-02559-4

Cited by 14 publications

(3 citation statements)

References 21 publications

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“…Sodium ions were located between the layers in oxygenated sites with seven‐fold or eight‐fold coordination. [ 23 ] The coordination environments for Na and the Na 2 ZnP 2 O 7 crystal structure based on JCPDS 34‐0576 are shown in Figure 2.…”

Section: Resultsmentioning

confidence: 99%

“…For confirmation, we predicted the positions of the most excited levels of the 4f 7 5d configuration (spin allowed (SA) and spin forbidden (SF)) using the Dorenbos approach. [ 29 ] According to Dorenbos, [ 29 ] the lowest‐lying energy level of the exited configuration 4f 8 5d, SA, and forbidden state, relative to the ground‐state configuration 4f 8 could be predicted for all RE 3+ ions embedded in Na 2 ZnP 2 O 7 using the following equation (eqn 1):

E ((),, {italicTb}^{3 +}, {Na}_{2} italicZn P_{2} O_{7}) = normalE ((),, {italicCe}^{3 +}, Free) - normalD ((), {Na}_{2} italicZn P_{2} O_{7}) + normalΔ E^{({Tb}^{3 +}, {Ce}^{3 +})}

where D( Na 2 ZnP 2 O 7 ) = E( Ce 3+ , Free) − E( Ce 3+ , Na 2 ZnP 2 O 7 ) represents the depression value averaged over all lanthanides, from E( Ce 3+ , Free) = 49 340 cm −1, [ 29 ] and E( Ce 3+ , Na 2 ZnP 2 O 7 ) = 33 003 cm −1 , [ 23 ] we obtained D( Na 2 ZnP 2 O 7 ) = 16 337 cm −1 .…”

Section: Resultsmentioning

confidence: 99%

“…Na 2 ZnP 2 O 7 has been prepared as a host material for activator ions such as for a green phosphor (Na 2 ZnP 2 O 7 :Cr 3+ ), [ 20 ] reddish‐orange phosphors (Na 2 ZnP 2 O 7 :Eu 3+ ), [ 21 ] red phosphors (Na 2 ZnP 2 O 7 :Mn 2+ ) [ 22 ] and a near UV‐violet phosphor (Na 2 ZnP 2 O 7 :Ce 3+ ). [ 23 ] But, to the best of our knowledge, there has been no report in the literature dealing with the luminescence properties of a Tb 3+ ion‐doped Na 2 ZnP 2 O 7 phosphor. In this study , Na 2 ZnP 2 O 7 pyrophosphate phosphors were prepared using the solid‐state reaction method.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and luminescence spectroscopy study of a novel orange‐red colour emissions phosphor based on Tb³⁺ ion‐doped Na₂ZnP₂O₇

et al. 2021

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Here, we report the synthesis and study of new orange‐red (OR) colour‐emitting phosphors Na2ZnP2O7:xTb3+ (x = 1, 1.25, 1.5, and 1.75 mol%) using a conventional solid‐state reaction. The sample crystallographic structures and their room temperature photoluminescence properties were measured using X‐ray powder diffraction, excitation and emission spectra, as well as emission decay curves. X‐ray diffraction analysis showed an isostructural tetragonal structure for all the doped materials with no impurities. Several colour emissions corresponding to 5D4→7F6 (blue), 5D4→7F5 (green), 5D4→7F4 (orange) and 5D4→7F3,2,0 (red) intraconfigurational transitions were observed and investigated. These colours were dominated by the OR colours. 5D4 energy level lifetime was independent of Tb3+ concentration. Various radiative and luminescence parameters, such as experimental branching ratio, radiative decay rate, and luminescence quantum efficiencies, were calculated and discussed. Chromaticity diagram calculations illustrated an orange emission for all the studied materials.

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Section: Resultsmentioning

confidence: 99%

E ((),, {italicTb}^{3 +}, {Na}_{2} italicZn P_{2} O_{7}) = normalE ((),, {italicCe}^{3 +}, Free) - normalD ((), {Na}_{2} italicZn P_{2} O_{7}) + normalΔ E^{({Tb}^{3 +}, {Ce}^{3 +})}

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Synthesis and luminescence spectroscopy study of a novel orange‐red colour emissions phosphor based on Tb³⁺ ion‐doped Na₂ZnP₂O₇

et al. 2021

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Photoluminescence studies and synthesis of BaSO₃Cl₂:Ce³⁺ blue‐emitting lamp phosphor

Panse

Zade²,

Jog

et al. 2021

Luminescence

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The photoluminescence excitation and emission spectra of BaSO3Cl2:Ce3+ phosphor were investigated. Excitation wavelength was 323 nm. The phosphor was prepared using a combustion synthesis method. The emission spectrum exhibited a well defined asymmetric band with a maximum at 445 nm for higher emission concentrations. The prepared samples were characterized by X‐ray diffraction, scanning electron microscopy, photoluminescence and Commission Internationale de l'éclairage colour coordinates; emission intensity was related to relative Ce3+ concentration. These developments enabled the rapid and energy‐efficient production of fine particles in the powder form with little expenditure. No additional emission band was observed in the emission spectra, demonstrating that the Ce3+ ion occupied one category of site in the prepared host phosphor.

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Tunable luminescence from Eu3+ and Ce3+ doped/co-doped color tunable Na4Ca(PO3)6 phosphors for white LEDs and solar cell applications

Dhiman¹,

Parauha

Chourasia³

et al. 2022

J Mater Sci: Mater Electron

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Synthesis and photoluminescence study of Ce3+ ion-activated Na2ZnP2O7 and Na4P2O7 pyrophosphate phosphors

Cited by 14 publications

References 21 publications

Synthesis and luminescence spectroscopy study of a novel orange‐red colour emissions phosphor based on Tb³⁺ ion‐doped Na₂ZnP₂O₇

Synthesis and luminescence spectroscopy study of a novel orange‐red colour emissions phosphor based on Tb³⁺ ion‐doped Na₂ZnP₂O₇

Photoluminescence studies and synthesis of BaSO₃Cl₂:Ce³⁺ blue‐emitting lamp phosphor

Tunable luminescence from Eu3+ and Ce3+ doped/co-doped color tunable Na4Ca(PO3)6 phosphors for white LEDs and solar cell applications

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Synthesis and photoluminescence study of Ce3+ ion-activated Na2ZnP2O7 and Na4P2O7 pyrophosphate phosphors

Cited by 14 publications

References 21 publications

Synthesis and luminescence spectroscopy study of a novel orange‐red colour emissions phosphor based on Tb3+ ion‐doped Na2ZnP2O7

Synthesis and luminescence spectroscopy study of a novel orange‐red colour emissions phosphor based on Tb3+ ion‐doped Na2ZnP2O7

Photoluminescence studies and synthesis of BaSO3Cl2:Ce3+ blue‐emitting lamp phosphor

Tunable luminescence from Eu3+ and Ce3+ doped/co-doped color tunable Na4Ca(PO3)6 phosphors for white LEDs and solar cell applications

Contact Info

Product

Resources

About

Synthesis and luminescence spectroscopy study of a novel orange‐red colour emissions phosphor based on Tb³⁺ ion‐doped Na₂ZnP₂O₇

Synthesis and luminescence spectroscopy study of a novel orange‐red colour emissions phosphor based on Tb³⁺ ion‐doped Na₂ZnP₂O₇

Photoluminescence studies and synthesis of BaSO₃Cl₂:Ce³⁺ blue‐emitting lamp phosphor