Synthesis and photoluminescence of Tb3+ Activated NaY(WO4)2 phosphors

Liu, Xiaohua; Xiang, Wendou; Chen, Fengming; Zhang, Wei; Hu, Zhengfa

doi:10.1016/j.materresbull.2012.07.012

Cited by 21 publications

(10 citation statements)

References 35 publications

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“…3b, right). Figure 3d shows the PLE and PL spectra of NaY(WO 4 ) 2 :0.03Eu 3 [27,37,38]. For a clear understanding, the broad band was also deconvolved with Gaussian fitting, which has been shown in Fig.…”

Section: Photoluminescence Propertiesmentioning

confidence: 99%

“…For example, Zheng et al [12] [16,20,26,27], and industrial productions of rare earth tungstates are all obtained by this method. However, there are some insurmountable defects in high temperature solid state reaction such as high temperature, long time, high energy consumption making more high-cost and depletion of energy.…”

Section: Introductionmentioning

confidence: 99%

“…red phosphors by high temperature solid state method, which might find application in white lighting devices utilizing GaN-based excitation in the n-UV. Liu et al [27] prepared NaY(WO 4 ) 2 :Tb 3? powders by solid state reaction at 900°C for 6 h. Also, a few more reports had been found on the synthesis of Eu 3?…”

Section: Introductionmentioning

confidence: 99%

“…or Tb 3? activated NaY(WO 4 ) 2 host lattice [27][28][29]32]. In our previous reports, we prepared NaLa(WO 4 ) 2 :Er 3?…”

Section: Introductionmentioning

confidence: 99%

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Hydrothermal synthesis, multicolor tunable luminescence and energy transfer of Eu3+ or/and Tb3+ activated NaY(WO4)2 nanophosphors

Liu

Wang

et al. 2016

J Mater Sci: Mater Electron

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Eu 3? and/or Tb 3? doped NaY(WO 4 ) 2 nanomaterials have been successfully synthesized by one-step hydrothermal method. The samples were characterized by X-ray diffraction, field-emission scanning electron microscopy, X-ray energy dispersive spectroscopy, and photoluminescence spectra. The results show that the novel nanoplates with a diameter of 300-600 nm and the thickness of 20-25 nm are observed. Under the excitation of 246 or 230 nm, individual RE 3? ions activated NaY(WO 4 ) 2 phosphors exhibit excellent emission properties in their respective regions. The as-prepared Eu 3? or Tb 3? doped samples show strong red and green emission, originating from the allowed 5 D 0 ? 7 F J (J = 0, 1, 2) transition of the Eu 3? ions and the 5 D 4 ? 7 F J (J = 6, 5, 4, 3) transition of the Tb 3? ions. In addition, by properly tuning the relative concentration of Eu 3? ions in the case of Eu 3? and Tb 3? co-doped systems, tunable emissions in a single component are obtained under the excitation of 230 or 395 nm. Moreover, an energy transfer from Tb 3? to Eu 3? is observed, which has been justified through the luminescence spectra and the fluorescence decay curves. Furthermore, the corresponding luminescence and energy transfer mechanism have been proposed in optical transitions and possible energy transfer scheme. These results indicate that Eu 3? and Tb 3? doped NaY(WO 4 ) 2 phosphors will find potential application in the field of solid-state lighting.

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Section: Photoluminescence Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…or Tb 3? activated NaY(WO 4 ) 2 host lattice [27][28][29]32]. In our previous reports, we prepared NaLa(WO 4 ) 2 :Er 3?…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Hydrothermal synthesis, multicolor tunable luminescence and energy transfer of Eu3+ or/and Tb3+ activated NaY(WO4)2 nanophosphors

Liu

Wang

et al. 2016

J Mater Sci: Mater Electron

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“…NaY(WO 4 ) 2 :Ho 3 þ /Yb 3 phosphors have been developed to prepare including solid-state reactions [10,11], the hydrothermal method [12,13], and the Czochralski method [14,15]. For practical application of UC photoluminescence in products morphology features need to be well defined.…”

Section: Introductionmentioning

confidence: 99%

Microwave-modified sol-gel process of NaY(WO4)2: Ho3+/Yb3+ phosphors and the upconversion of their photoluminescence properties

Lim

2015

Ceramics International

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Upconversion Photoluminescence Properties of KGd(WO₄)₂:Ho³⁺/Yb³⁺ Phosphors Synthesized by Microwave‐assisted Sol‐Gel Method

Lim

2015

Bulletin Korean Chem Soc

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Double tungstate KGd 1−x (WO 4 ) 2 :Ho 3+ /Yb 3+ phosphors with doping concentrations of Ho 3+ and Yb 3+ (x = Ho 3+ + Yb 3+ , Ho 3+ = 0.05, 0.1, 0.2, and Yb 3+ = 0.2, 0.45) were successfully synthesized by the microwave-assisted sol-gel method, and the upconversion (UC) mechanisms by a two-photon process have been investigated in detail. Well-crystallized particles, formed after heat-treatment at 900 C for 16 h, showed a fine and homogeneous morphology with particle sizes of 2-10 μm. Under excitation at 980 nm, the UC intensities of KGd 0.7 (WO 4 ) 2 :Ho 0.1 Yb 0.2 and KGd 0.5 (WO 4 ) 2 Ho 0.05 Yb 0.45 particles exhibited yellow emissions based on a strong 550-nm emission band in the green region and a strong 655-nm emission band in the red region, which were assigned to the 5 S 2 / 5 F 4 ! 5 I 8 and 5 F 5 ! 5 I 8 transitions, respectively. The Raman spectra of the particles indicated the appearance of strong peaks at higher frequencies (1050, 1106, 1250, and 1340 cm −1 ).

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Synthesis and photoluminescence of Tb3+ Activated NaY(WO4)2 phosphors

Cited by 21 publications

References 35 publications

Hydrothermal synthesis, multicolor tunable luminescence and energy transfer of Eu3+ or/and Tb3+ activated NaY(WO4)2 nanophosphors

Hydrothermal synthesis, multicolor tunable luminescence and energy transfer of Eu3+ or/and Tb3+ activated NaY(WO4)2 nanophosphors

Microwave-modified sol-gel process of NaY(WO4)2: Ho3+/Yb3+ phosphors and the upconversion of their photoluminescence properties

Upconversion Photoluminescence Properties of KGd(WO₄)₂:Ho³⁺/Yb³⁺ Phosphors Synthesized by Microwave‐assisted Sol‐Gel Method

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Synthesis and photoluminescence of Tb3+ Activated NaY(WO4)2 phosphors

Cited by 21 publications

References 35 publications

Hydrothermal synthesis, multicolor tunable luminescence and energy transfer of Eu3+ or/and Tb3+ activated NaY(WO4)2 nanophosphors

Hydrothermal synthesis, multicolor tunable luminescence and energy transfer of Eu3+ or/and Tb3+ activated NaY(WO4)2 nanophosphors

Microwave-modified sol-gel process of NaY(WO4)2: Ho3+/Yb3+ phosphors and the upconversion of their photoluminescence properties

Upconversion Photoluminescence Properties of KGd(WO4)2:Ho3+/Yb3+ Phosphors Synthesized by Microwave‐assisted Sol‐Gel Method

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Upconversion Photoluminescence Properties of KGd(WO₄)₂:Ho³⁺/Yb³⁺ Phosphors Synthesized by Microwave‐assisted Sol‐Gel Method