Crystal structure and luminescent properties of Li+ ions doped double tungstate KEu(WO4)2 red emitting phosphors

Zhu, Hai; Liang, Chunping; Huang, Weigang

doi:10.1016/j.physb.2020.411999

Cited by 19 publications

(8 citation statements)

References 39 publications

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“…Additionally, the few of peaks in the range of 15°-20° and 25°-30° could be attributed to the Li 2 WO 4 phase (JCPDS Card No. 12-0772), but it would not affect the luminous performance of the main phase [25].…”

Section: Fabrication Of White Light Emitting Diode (Led) Devicesmentioning

confidence: 99%

Effect of anionic group [SiO4]4−/[PO4]3− on the luminescence properties of Dy3+-doped tungstate structural compounds

et al. 2021

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Novel scheelite structures of Li2Ca(WO4)2, Li2Ca2(WO4)(SiO4), and LiCa2(WO4)(PO4) fluorescent materials were successfully prepared using a high-temperature solid-phase process. The compounds were characterized by X-ray diffraction and energy dispersive spectroscopy. The tests revealed that the substitution of [WO4]2− by [SiO4]4− or [PO4]3− tetrahedron in tungstate had no significant influence on the crystal structure of the Li2Ca(WO4)2. When Dy3+ ions were introduced as an activator at an optimum doping concentration of 0.08 mol%, all of the as-prepared phosphors generated yellow light emissions, and the emission peak was located close to 576 nm. Replacing [WO4]2− with [SiO4]4− or [PO4]3− tetrahedron significantly increased the luminescence of the Li2Ca(WO4)2 phosphors. Among them, the LiCa2(WO4)(PO4):0.08Dy3+ phosphor had the best luminescence properties, decay life (τ = 0.049 ms), and thermal stability (87.8%). In addition, the as-prepared yellow Li2Ca(WO4)2:0.08Dy3+, Li2Ca2(WO4)(SiO4):0.08Dy3+, and LiCa2(WO4)(PO4):0.08Dy3+ phosphor can be used to fabricate white light emitting diode (LED) devices.

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Section: Fabrication Of White Light Emitting Diode (Led) Devicesmentioning

confidence: 99%

Effect of anionic group [SiO4]4−/[PO4]3− on the luminescence properties of Dy3+-doped tungstate structural compounds

et al. 2021

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“…Double tungstate KEu (WO 4 ) 2 phosphors doped with Li + were reported via the sol-gel approach. 89 As the Li + content is more than 0.2, the two…”

Section: Dalton Transactionsmentioning

confidence: 99%

“…Double tungstate KEu(WO 4 ) 2 phosphors doped with Li + were reported via the sol–gel approach. 89 As the Li + content is more than 0.2, the two different phases of solid solution were composed of the phosphors ( i.e. , K 1− x Li x Eu(WO 4 ) 2 , LiEu(WO 4 ) 2 ).…”

Section: Eu3+ Based Phosphors With Scheelite and Double Perovskite Re...mentioning

confidence: 99%

Recent progress in trivalent europium (Eu³⁺)-based inorganic phosphors for solid-state lighting: an overview

Singh¹,

Pradhan²,

Priya³

et al. 2023

Dalton Trans.

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“…Under low temperature (liquid nitrogen or liquid helium temperature), the short‐wavelength ultraviolet light excitation will emit green or blue light, which is the main material for the manufacture of high‐performance nuclear radiation detection instruments and X‐ray machines. Zhu et al [ 135 ] prepared lithium‐ion‐doped bistungstate KEu (WO 4 ) 2 phosphor by the sol−gel method and systematically studied the crystal structure and luminescent properties. The results show that the addition of lithium ions can change the lattice parameters, EuO and WO bond distances of K 1− x Li x Eu(WO 4 ) 2 .…”

Section: Application Of Znwo4mentioning

confidence: 99%

Synthesis Methods and Applications of Semiconductor Material ZnWO₄ with Multifunctions and Multiconstructions

Wang

et al. 2021

Energy Tech

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At present, nanostructures with excellent morphology have become a research hotspot. With the deepening of research and the rapid development of nanotechnology, nanosemiconductors have also made remarkable progress. In recent years, ZnWO4 in metal tungstates has been widely used in many fields, which is mainly due to its high crystal density, short radiation length, excellent optical properties, good radiation damage resistance, and non‐liquefaction. Therefore, herein, the synthesis methods and applications of ZnWO4 semiconductor materials in recent years are reviewed. First, the crystal structure and characteristics of ZnWO4 are described, and then the latest research progress of ZnWO4 semiconductor materials is summarized. The synthesis methods and contributions to photocatalysis, sensors, electronic materials, and luminescent materials are highlighted. The characteristics of ZnWO4 nanoarrays and their applications in supercapacitors are particularly emphasized, which provide a reference for the development of multifunctional nanoarrays. Finally, the challenges and countermeasures of ZnWO4 semiconductor materials are summarized and prospected. In a word, a new idea and strategy to design and assemble new types of ZnWO4 nanomaterials with multiconstructional systems and multifunctional properties for their practical applications is provided.

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Crystal structure and luminescent properties of Li+ ions doped double tungstate KEu(WO4)2 red emitting phosphors

Cited by 19 publications

References 39 publications

Effect of anionic group [SiO4]4−/[PO4]3− on the luminescence properties of Dy3+-doped tungstate structural compounds

Effect of anionic group [SiO4]4−/[PO4]3− on the luminescence properties of Dy3+-doped tungstate structural compounds

Recent progress in trivalent europium (Eu³⁺)-based inorganic phosphors for solid-state lighting: an overview

Synthesis Methods and Applications of Semiconductor Material ZnWO₄ with Multifunctions and Multiconstructions

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Crystal structure and luminescent properties of Li+ ions doped double tungstate KEu(WO4)2 red emitting phosphors

Cited by 19 publications

References 39 publications

Effect of anionic group [SiO4]4−/[PO4]3− on the luminescence properties of Dy3+-doped tungstate structural compounds

Effect of anionic group [SiO4]4−/[PO4]3− on the luminescence properties of Dy3+-doped tungstate structural compounds

Recent progress in trivalent europium (Eu3+)-based inorganic phosphors for solid-state lighting: an overview

Synthesis Methods and Applications of Semiconductor Material ZnWO4 with Multifunctions and Multiconstructions

Contact Info

Product

Resources

About

Recent progress in trivalent europium (Eu³⁺)-based inorganic phosphors for solid-state lighting: an overview

Synthesis Methods and Applications of Semiconductor Material ZnWO₄ with Multifunctions and Multiconstructions