Combustion synthesis and luminescence investigation of Na3Al2(PO4)3:RE (RE = Ce3+, Eu3+ and Mn2+) phosphor

Nagpure, I. M.; Shinde, K. N.; Kumar, Vinay; Ntwaeaborwa, O.M.; Dhoble, S.J.; Swart, H.C.

doi:10.1016/j.jallcom.2009.11.110

Cited by 107 publications

(58 citation statements)

References 33 publications

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“…m 3 ) of vibrations of hydroxyl ions bands are observed in the region 3400-4000 cm -1 at different sites and at 1638, 1619 cm -1 H-O-H bending mode (t 2 ) is observed and all these modes are infrared active [33]. The bands observed in the region 1400-500 cm -1 are characteristic vibrations of PO 4 3-. In a free state, the phosphate ion exists in triply degenerated symmetry and exhibits four fundamental modes of vibrations (t 1 , t 2 , t 3 and t 4 ) [34].…”

Section: Ft-ir Studymentioning

confidence: 92%

“…-doped Li 2 CaAl 4 (PO 4 ) 4 F 4 phosphor sample visibly exhibiting the vibrational bands in the region of 4000-500 cm -1 . The spectrum exhibits the symmetric, asymmetric stretching and bending vibrations of hydroxyl groups, triply degenerate modes of phosphate ion PO 4 3-, P-O-H, F-P-F and water modes of vibrations.…”

Section: Photoluminescence Study and Color Precipitationmentioning

confidence: 99%

“…Luminescent nano particles (also termed as nano phosphor) are used rising in development, energy-saving light sources and it offers a route to cut this waste significantly, providing energy savings compared to those expected from solid-state lighting. Important families of phosphors for illumination applications are in the form of phosphate-based inorganic compounds doped with rare earth or transition metal ions [1][2][3][4]. Phosphor luminescent materials are used in plasma display panels (PDPs), cathode ray tubes (CRT), white light emitting diodes (W-LEDs), electroluminescence (EL)-based displays and field emission displays (FEDs) [5].…”

Section: Introductionmentioning

confidence: 99%

“…The phosphor materials are prepared by several methods such as combustion [4], wet chemical [19], solid-state reaction [20,21] and sol-gel [22] methods. In the present work, Cu 2?…”

Section: Introductionmentioning

confidence: 99%

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Spectral Investigations on Cu2+-doped Li2CaAl4(PO4)4F4 Phosphors

et al. 2015

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Cu 2? -doped Li 2 CaAl 4 (PO 4 ) 4 F 4 nanophosphor has been synthesized using solid-state reaction method at room temperature. The prepared phosphor is characterized by powder X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), optical absorption, photoluminescence (PL), electron paramagnetic resonance (EPR) and Fourier transform infrared (FT-IR) techniques. From powder XRD pattern, the evaluated average crystallite size is in the order of nanoscale. Morphological studies of prepared sample were analyzed using SEM and TEM. The optical absorption spectrum reveals that Cu 2? enters into the tetragonally distorted octahedral site in the host lattice. Spin-Hamiltonian, crystal field and bonding parameters are evaluated from the EPR spectrum. The PL spectrum of Cu 2? -doped Li 2 CaAl 4 (PO 4 ) 4 F 4 phosphor gives emission peaks in the UV and blue region. The FT-IR spectrum exhibited bands which are attributed to vibrations of phosphate ions, P-O-H and water molecules.

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Section: Ft-ir Studymentioning

confidence: 92%

Section: Photoluminescence Study and Color Precipitationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The phosphor materials are prepared by several methods such as combustion [4], wet chemical [19], solid-state reaction [20,21] and sol-gel [22] methods. In the present work, Cu 2?…”

Section: Introductionmentioning

confidence: 99%

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Spectral Investigations on Cu2+-doped Li2CaAl4(PO4)4F4 Phosphors

et al. 2015

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“…Phosphate is an excellent host for luminescence materials due to its low sintering temperature, high luminous efficiency, and high stability [13]. In this work, we reported a new color tunable phosphatetype phosphor Na 3 Bi 1-x-y (PO 4 ) 2 :xSm 3?…”

Section: Introductionmentioning

confidence: 97%

Energy transfer, tunable luminescence, and thermal stability of Tb3+–Sm3+-codoped Na3Bi(PO4)2 phosphors

Zhang

Yang

et al. 2016

J Mater Sci

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A series of Tb 3? -Sm 3? -codoped Na 3 Bi(PO 4 ) 2 phosphors have been prepared by a high-temperature solid-state reaction, and their luminescence properties have been investigated in detail. The energy transfer process from Tb 3? to Sm 3? was verified through luminescence spectra and fluorescence decay curves. Moreover, the energy transfer mechanism was demonstrated to be the dipole-dipole interaction and the ET efficiency as well as quantum efficiency was also estimated. By controlling the doping content of the Sm 3? ions with the fixed Tb 3? content, the emission color of the obtained phosphors could be easily modulated from green to yellow and then to yellow-white. Additionally, as the temperature increases from RT to 150°C, the PL intensity of transition of Sm 3? decreased to 79 %, which prove good thermal stability of Na 3 Bi(PO 4 ) 2 :xSm 3? ,0.1Tb 3? phosphors. All the results indicate that the series of Na 3 Bi(PO 4 ) 2 :xSm 3? ,0.1Tb 3? phosphors can be acted as a good candidate for the application in white lightemitting diodes.

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Effect of temperature on intense green emitting Na₂Ca(PO₄)F:Mn²⁺ phosphor

Shinde¹,

Nagpure

Fulke

et al. 2010

Luminescence

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An intense green luminescent Na₂Ca(PO₄)F:Mn²⁺ phosphor has been prepared at high temperature by reduction treatment in a charcoal environment. The emission band of Mn²⁺ was obtained at around 522 nm (green) under 259 nm excitation. Enhancement in emission intensity arising from the thermal treatment is reported. The intense emission of the spectrum was assigned to electronic transitions ⁴T₁ → ⁶A₁ of Mn²⁺ ions. Intense PL emission suggested that temperature employed plays an important role in the present matrix. X-ray diffraction pattern, photoluminescence and morphology by SEM of the host lattice of phosphors at different temperatures have been reported in this paper. The results obtained show that the present phosphor has potential for application in green emitting phosphors for the lamp industry.

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Combustion synthesis and luminescence investigation of Na3Al2(PO4)3:RE (RE = Ce3+, Eu3+ and Mn2+) phosphor

Cited by 107 publications

References 33 publications

Spectral Investigations on Cu2+-doped Li2CaAl4(PO4)4F4 Phosphors

Spectral Investigations on Cu2+-doped Li2CaAl4(PO4)4F4 Phosphors

Energy transfer, tunable luminescence, and thermal stability of Tb3+–Sm3+-codoped Na3Bi(PO4)2 phosphors

Effect of temperature on intense green emitting Na₂Ca(PO₄)F:Mn²⁺ phosphor

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Combustion synthesis and luminescence investigation of Na3Al2(PO4)3:RE (RE = Ce3+, Eu3+ and Mn2+) phosphor

Cited by 107 publications

References 33 publications

Spectral Investigations on Cu2+-doped Li2CaAl4(PO4)4F4 Phosphors

Spectral Investigations on Cu2+-doped Li2CaAl4(PO4)4F4 Phosphors

Energy transfer, tunable luminescence, and thermal stability of Tb3+–Sm3+-codoped Na3Bi(PO4)2 phosphors

Effect of temperature on intense green emitting Na2Ca(PO4)F:Mn2+ phosphor

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Effect of temperature on intense green emitting Na₂Ca(PO₄)F:Mn²⁺ phosphor