Luminescence and energy transfer in warm white-light-emitting K3Y(PO4)2:Tb,Eu phosphor for LEDs applications

Zhang, Yuqian; Zhang, Jia; Li, Xiaowei; Jiang, Xiumin; Jin, Shi; Wen, Yan

doi:10.1007/s10854-017-8244-0

Cited by 5 publications

(3 citation statements)

References 38 publications

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“…Although the contents of Eu 3+ and Tb 3+ are low, there is little Tb 3+ ‐to‐Eu 3+ energy transfer which ranging from 1.51 % to 10.71 % when the excitation wavelength increases (Table 2). Consequently, the excitation wavelength influences the antenna effect of the ligand but also the Tb 3+ ‐to‐Eu 3+ energy transfer which is a crucial parameter to equilibrate the green‐red balance [40–42] …”

Section: Resultsmentioning

confidence: 99%

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Lanthanide Isophthalate Metal‐Organic Frameworks: Crystal Structure, Thermal Behavior, and White Luminescence

et al. 2020

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Two novel lanthanide metal-organic frameworks (LnMOFs), Ln 1.14 Na 0.57 (BDC) 2 (H 2 O) • 4H 2 O (Ln=La 3 + or Ce 3 + , BDC : 1,3-benzenedicarboxylate), have been synthesized under hydrothermal conditions by using a Ln 3 + coordination polymer as precursor. The crystal structure was determined from single crystal X-ray diffraction. Both compounds are isostructural and contain chains of face-sharing [LnO 10 ] polyhedra connected by the linkers to form an anionic three-dimensional network, defining both polar and apolar channels, the latter being occupied by water molecules and Ln 3 + and Na + cations. When doped by optimized content of Eu 3 + and Tb 3 + , the La 3 + counterpart exhibits white luminescence emission with CIE parameters equal to (0.3440, 0.3735) at λ exc = 321 nm, which renders the material attractive for white LED application.

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Section: Resultsmentioning

confidence: 99%

“…Consequently, the excitation wavelength influences the antenna effect of the ligand but also the Tb 3 + -to-Eu 3 + energy transfer which is a crucial parameter to equilibrate the green-red balance. [40][41][42]…”

Section: Luminescence Propertiesmentioning

confidence: 99%

Lanthanide Isophthalate Metal‐Organic Frameworks: Crystal Structure, Thermal Behavior, and White Luminescence

et al. 2020

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“…Therefore, these results of course bring us to further assumption of ET from Eu 2+ to Tb 3+ and from Tb 3+ to Eu 3+ , simultaneously. 36,[41][42][43]…”

Section: Luminescence Related To Eu 2+ -Tb 3+ -Eu 3+ Tri-activated mentioning

confidence: 99%

Tunable white light and energy transfer of Eu²⁺‐Tb³⁺‐Eu³⁺ tri‐activated glasses synthesized in air

2019

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An ever increasing demand for white light‐emitting diodes (W‐LEDs) results in the gradual growth of research on functionalized luminescent glasses. In this paper, single‐composition tunable white‐emitting Eu2+‐Tb3+‐Eu3+ tri‐activated glasses were synthesized by melt quenching method without additional reducing atmosphere. The coexistence of Eu2+ and Eu3+ was confirmed by ultraviolet‐visible transmission spectra, photoluminescent spectra, fluorescence decay curves, and X‐ray photoelectron spectroscopy. Tb3+ can act as bridge to connect Eu2+‐Eu3+ luminescent centers by energy transfer. Tone‐tunable white light can be achieved by coupling the emission centered at 412, 541, and 612 nm contributed from Eu2+, Tb3+, and Eu3+, respectively. By adjusting the relative content of Eu2+/Tb3+/Eu3+, ideal chromaticity coordinates of (0.33, 0.33) can be achieved under excitation of ultraviolet light. High thermal stability and tiny chromaticity shift were exhibited in samples. These results suggest that Eu2+‐Tb3+‐Eu3+ tri‐activated glasses have great potential application in ultraviolet‐driven W‐LEDs.

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Luminescence properties of the single-phase white light emitting phosphors Li0.04Ca0.93−xSiO3:Eu0.01,Bi0.02,Tbx

Liang

Huang

Zhu

et al. 2021

J Mater Sci: Mater Electron

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Luminescence and energy transfer in warm white-light-emitting K3Y(PO4)2:Tb,Eu phosphor for LEDs applications

Cited by 5 publications

References 38 publications

Lanthanide Isophthalate Metal‐Organic Frameworks: Crystal Structure, Thermal Behavior, and White Luminescence

Lanthanide Isophthalate Metal‐Organic Frameworks: Crystal Structure, Thermal Behavior, and White Luminescence

Tunable white light and energy transfer of Eu²⁺‐Tb³⁺‐Eu³⁺ tri‐activated glasses synthesized in air

Luminescence properties of the single-phase white light emitting phosphors Li0.04Ca0.93−xSiO3:Eu0.01,Bi0.02,Tbx

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Luminescence and energy transfer in warm white-light-emitting K3Y(PO4)2:Tb,Eu phosphor for LEDs applications

Cited by 5 publications

References 38 publications

Lanthanide Isophthalate Metal‐Organic Frameworks: Crystal Structure, Thermal Behavior, and White Luminescence

Lanthanide Isophthalate Metal‐Organic Frameworks: Crystal Structure, Thermal Behavior, and White Luminescence

Tunable white light and energy transfer of Eu2+‐Tb3+‐Eu3+ tri‐activated glasses synthesized in air

Luminescence properties of the single-phase white light emitting phosphors Li0.04Ca0.93−xSiO3:Eu0.01,Bi0.02,Tbx

Contact Info

Product

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Tunable white light and energy transfer of Eu²⁺‐Tb³⁺‐Eu³⁺ tri‐activated glasses synthesized in air