Synthesis and photoluminescence properties of NaPbB5O9:Dy3+ phosphor materials for white light applications

Rajesh, D.; Naidu, M. Dhamodhara; Ratnakaram, Y.C.

doi:10.1016/j.jpcs.2014.05.006

Cited by 21 publications

(5 citation statements)

References 31 publications

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“…11 A number of Dy 3+ doped luminescence materials have been reported, for instance, SrYAl 3 O 7 :Dy 3+ , 12 Ca 9 Bi(VO 4 ) 7 :Dy 3+ , 13 Na 5 Y(MoO 4 ) 4 :Dy 3+ , 14 Ca 2 Sb 2 O 7 :Dy 3+ , 15 and NaPbB 5 O 9 :Dy 3+ . 16 Eu 3+ ion exhibits orange and pure red emissions because of the transitions from the excited state 5 D 0 to the ground states 7 F J ( J = 0, 1, 2, 3, 4, and 5) in the 4f 6 electron configuration. 17 There are a number of research studies on Eu 3+ -doped luminescent materials, such as Ca 3 La 6 Si 6 O 24 :Eu 3+ , 18 Na 2 Ln 4 (MoO 4 ) 7 : Eu 3+ [Ln = La, Gd, and Y], 19 (Ba, Ca) 2 ScAlO 5 :Eu 3+ , 20 Ca 9 MgLi (PO 4 ) 7 :Eu 3+ , 21 and (Sr, Ba) 2 YTaO 6 :Eu 3+ .…”

Section: Introductionmentioning

confidence: 99%

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CaAl₂Si₂O₈:Dy³⁺, Eu³⁺: synthesis, luminescence properties, energy transfer, and tunable emission

et al. 2023

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

CaAl₂Si₂O₈:Dy³⁺, Eu³⁺: synthesis, luminescence properties, energy transfer, and tunable emission

et al. 2023

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“…[1][2][3] Eu 3+ ion doped material is an effective red phosphor due to its intense near UV absorption and excellent pure red emissions corresponding to the 5 D 0 → 7 F j (j = 1, 2, 3, 4) transitions of Eu 3+ . [4][5][6][7][8] In recent years, a large amount of rare earth carbonates system has been parepared, such as Na 3 Eu(CO 3 ) 3 , 9 NaLiRe(CO 3 ) 3 (Re = Eu-Er,Yb,Lu,Y), 10 Na 3 Eu(CO 3 )F 3 , 11 BaEu(CO 3 ) 2 , 12 Ba 3 Eu(CO 3 ) 2 F 3 , 13 Na 3 La(CO 3 ) 4 F: Eu 3+12 and KGd(CO 3 )F 2 : Eu 3+ . 14 However, there were few reports on their luminescence properties.…”

Section: Introductionmentioning

confidence: 99%

SYNTHESIS, CRYSTAL STRUCTURE AND PHOTOLUMINESCENCE PROPERTIES OF A NEW RARE-EARTH CARBONATE Na3Eu(CO3)(3)6H2O

Zhao

Huang

et al. 2017

J. Chil. Chem. Soc.

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A new sodium europium carbonate hydrate, Na 3 Eu(CO 3 ) 3 ·6H 2 O, has been prepared using the hydrothermal method, and its structure was determined by single crystal X-Ray diffraction analysis for the first time. It crystallizes in the polar hexagonal space group P6 3 with a = 11.382(9) Å, c = 5.989(5) Å, V = 672.06(9) Å 3 , Z = 2, Mr = 509.06, Dc = 2.516 g/cm 3 , F(000) = 492, μ(MoKα) = 4.84 mm -1 , R 1 = 0.015 and wR = 0.038. The structure features a three-dimensional（3D） framework composed of planar (CO 3 ) 2-triangles, Eu 3+ ions and Na + ions, which delimits 1D infinite chains with a hexangular star appearance along the c-axis. The IR spectrum and the self-activated photoluminescence properties were studied. Under the excitation of near UV light (395nm), it shows strong red emission at 618 nm with a lifetime of 348.7 μs. Present research indicates that Na 3 Eu(CO 3 ) 3 ·6H 2 O is a promising red phosphor for white light-emitting diodes.Keywords: hydrothermal; carbonate; X-ray diffraction; photoluminescence e-mail: iamzd1996@yahoo.com.cn; fanyunchang@hpu.edu.cn INTRODUCTIONIn the last few decades, an extensive research has been carried out for new rare earth luminescent materials, owning to their potential applications in optical information transmission, display imaging, solar photovoltaic conversion, fluorescent powder, electrical conduction, new light source and X-ray intensifying screen. 1-3 Eu 3+ ion doped material is an effective red phosphor due to its intense near UV absorption and excellent pure red emissions corresponding to the 5 D 0 → 7 F j (j = 1, 2, 3, 4) transitions of Eu 3+ . [4][5][6][7][8] In recent years, a large amount of rare earth carbonates system has been parepared, such as Na 3 Eu(CO 3 ) 3 , 9 NaLiRe(CO 3 ) 3 (Re = Eu-Er,Yb,Lu,Y), 10 Na 3 Eu(CO 3 )F 3 , 11 BaEu(CO 3 ) 2 , 12 Ba 3 Eu(CO 3 ) 2 F 3 , 13 Na 3 La(CO 3 ) 4 F: Eu 3+12 and KGd(CO 3 )F 2 : Eu 3+ . 14 However, there were few reports on their luminescence properties. 15 In order to explore a new europium carbonate that might afford red luminescent emission, we started a research using the hydrothermal method and a new alkali sodium europium carbonate hydrate Na 3 Eu(CO 3 ) 3 ·6H 2 O was successfully prepared. The crystal structure, IR spectrum and photoluminescence properties at room temperature were studied for it. EXPERIMENTAL Materials and MethodsAll of the chemicals, NaCO 3 , NaHCO 3 , Eu(NO 3 ) 3 ·6H 2 O were purchased from Shanghai Reagent Factory and were analytically pure without further purification. IR spectra were recorded on a Magna 750 FT-IR spectrometer as KBr pellets in the range of 4000−400 cm -1 . Photoluminescence (PL) properties were performed on EDINBURGHFLS980 fluorescence spectrophotometer. 2 SynthesisSingle crystal was prepared by the follow procedure: a mixture of Na 2 CO 3 (0.44 g, 4 μmol), NaHCO 3 (0.2 g, 2 μmol) and Eu(NO 3 ) 3 ·6H 2 O (0.035 g, 0.1 μmol) was dissolved in 2 ml deionized water, which was then placed in a 20 ml Teflon-lined stainless steel autoclave. The autoclave was sealed an...

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“…Research into phosphor materials is immensely important because of their use in emerging technologies such as lamps, field emission displays, solid state lighting and plasma display panels [1]. In the recent years, white light emitting diodes in the field of solid state lighting have received more attention due to their excellent characteristics of long lifetime, high brightness, safe, and environmental friendliness [2,3].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Luminescence Properties of Dy3+ Doped Sr3Lu(PO4)3 as a New Single Phase White Light Emitting Phosphor

Yang

et al. 2017

KEM

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The novel white light emitting phosphors Sr3Lu(1-x)Dyx(PO4)3 (x = 0.02, 0.04, 0.06, 0.08, 0.10) were synthesized via a conventional high-temperature solid-state reaction method at 1250°C. The excitation spectrum indicated that these phosphors had a strong absorption in near UV region in the range from 260 to 460 nm. And under 350 nm excitation, the blue emission at 483nm (4F9/2→6H15/2) and yellow emission at 576 nm (4F9/2→6H13/2) were observed in the phosphors, respectively. We studied the effect of different doping concentrations of Dy3+ activator on the luminescence properties and found that the optimum doping concentration is 6 mol%. According to the Dexter’s theory, this quenching behavior is ascribed to be electric d-d interaction. Furthermore, the chromaticity coordinate (x = 0.28, y = 0.32) of Sr3Lu (PO4)3:0.06Dy3+ phosphor was very close to the “ideal white” (x = 0.33, y = 0.33) in the chromaticity diagram. Our results indicate that the Sr3Lu (PO4)3:Dy3+ phosphor can serve as a promising candidate for single-component white light emitting phosphor under near UV excitation.

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Synthesis and photoluminescence properties of NaPbB5O9:Dy3+ phosphor materials for white light applications

Cited by 21 publications

References 31 publications

CaAl₂Si₂O₈:Dy³⁺, Eu³⁺: synthesis, luminescence properties, energy transfer, and tunable emission

CaAl₂Si₂O₈:Dy³⁺, Eu³⁺: synthesis, luminescence properties, energy transfer, and tunable emission

SYNTHESIS, CRYSTAL STRUCTURE AND PHOTOLUMINESCENCE PROPERTIES OF A NEW RARE-EARTH CARBONATE Na3Eu(CO3)(3)6H2O

Preparation and Luminescence Properties of Dy<sup>3+</sup> Doped Sr<sub>3</sub>Lu(PO<sub>4</sub>)<sub>3</sub> as a New Single Phase White Light Emitting Phosphor

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Synthesis and photoluminescence properties of NaPbB5O9:Dy3+ phosphor materials for white light applications

Cited by 21 publications

References 31 publications

CaAl2Si2O8:Dy3+, Eu3+: synthesis, luminescence properties, energy transfer, and tunable emission

CaAl2Si2O8:Dy3+, Eu3+: synthesis, luminescence properties, energy transfer, and tunable emission

SYNTHESIS, CRYSTAL STRUCTURE AND PHOTOLUMINESCENCE PROPERTIES OF A NEW RARE-EARTH CARBONATE Na3Eu(CO3)(3)6H2O

Preparation and Luminescence Properties of Dy<sup>3+</sup> Doped Sr<sub>3</sub>Lu(PO<sub>4</sub>)<sub>3</sub> as a New Single Phase White Light Emitting Phosphor

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CaAl₂Si₂O₈:Dy³⁺, Eu³⁺: synthesis, luminescence properties, energy transfer, and tunable emission

CaAl₂Si₂O₈:Dy³⁺, Eu³⁺: synthesis, luminescence properties, energy transfer, and tunable emission