Broadband-excited and green-red tunable emission in Eu2+-sensitized Ca8MnTb(PO4)7 phosphors induced by structural-confined cascade energy transfer

Fan, Jiaqi; Zhou, Weiying; Wu, Zhan‐Chao; Yang, Ye; Chen, Peican; Pang, Qi; Zhou, Liya; Zhou, Chong; Mo, Fuwang; Zhang, Xinguo

doi:10.1039/d2dt04107c

Cited by 2 publications

(1 citation statement)

References 25 publications

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“…This emission corresponds to the energy level transition of 4 f 6 5 d 1 − 4 f 7 in Eu 2+ ions. 41,42 By increasing the doping concentration of Eu ions, we noticed a gradual increase in luminescence intensity, peaking at 7% Eu doping of the addition amount. The actual doping concentration of Eu ions in the ICP-OES test results is 5.5%.…”

Section: ■ Results and Discussionmentioning

confidence: 91%

Layered Chalcogenide Scintillators Enabled by Reversible Hydrous-Induced Phase Transformation for High-Resolution X-ray Imaging

Yang,

Huang,

et al. 2024

ACS Appl. Mater. Interfaces

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Scintillation materials have been widely used in various fields, such as medical diagnosis and industrial detection. Chalcogenides have the potential to become a new generation of high-performance scintillation materials due to their high effective atomic number and good resistance to radiation damage. However, research on their application in radiation detection is currently very scarce. Herein, single crystals of rare earth ion-doped ternary chalcogenides NaGaS 2 /Eu were grown by a high-temperature solid-phase method. It exhibits unique characteristics of structure transformation by absorbing water molecules from the air. To maintain the anhydrous phase of the material, we have used a strategy of organic−inorganic composites of epoxy resin and NaGaS 2 / Eu to prepare devices for radiation detection and discuss the irradiation luminescence properties of the two phases. The anhydrous phase of NaGaS 2 /Eu demonstrates excellent sensitivity to X-rays, with a low detection limit of 250 nGy s −1 , which is approximately 1/22 of the medical imaging dose. Additionally, composite flexible films were prepared, which exhibited excellent performance in Xray imaging. These films enable clear observation of a wide range of objects with a high spatial resolution of up to 13.2 line pairs per millimeter (lp mm −1 ), indicating that chalcogenide holds promising prospects in the realm of X-ray imaging applications.

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Section: ■ Results and Discussionmentioning

confidence: 91%

Layered Chalcogenide Scintillators Enabled by Reversible Hydrous-Induced Phase Transformation for High-Resolution X-ray Imaging

Yang,

Huang,

et al. 2024

ACS Appl. Mater. Interfaces

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Synthesis and luminescent properties of ZnWO4: Cr3+ nanoparticles for NIR-II fluorescence imaging

Xiao

Zhou

Fan

et al. 2023

Ceramics International

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Broadband-excited and green-red tunable emission in Eu²⁺-sensitized Ca₈MnTb(PO₄)₇ phosphors induced by structural-confined cascade energy transfer

Abstract: Novel green-red color-tunable Ca8(Mg,Mn)Tb(PO4)7: Eu2+ phosphors have synthesized via traditional solid-state method. Since Tb3+/Mn2+ ions are the parent ions in the lattice, the structural confinement occurs when sensitizer Eu2+ is...

Cited by 2 publications

References 25 publications

Layered Chalcogenide Scintillators Enabled by Reversible Hydrous-Induced Phase Transformation for High-Resolution X-ray Imaging

Layered Chalcogenide Scintillators Enabled by Reversible Hydrous-Induced Phase Transformation for High-Resolution X-ray Imaging

Synthesis and luminescent properties of ZnWO4: Cr3+ nanoparticles for NIR-II fluorescence imaging

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