The structure and luminescence properties of long afterglow phosphor Y3−xMnxAl5−xSixO12

Mu, Zhongfei; Hu, Yihua; Wang, Yinhai; Wu, Haoyi; Fu, Chujun; Kang, Fengwen

doi:10.1016/j.jlumin.2010.11.016

Cited by 37 publications

(8 citation statements)

References 31 publications

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“…Note that this class of materials is different from the Mg 2+ -Si 4+ substitution for Al 3+ -Al 3+ in Al-based garnet phosphors described in Section 2.2. 39,[128][129][130][131][132][133] The Mg 2+ -Si 4+ substitution involved the tetrahedral and octahedral sites, where the Ca 2+ -Si 4+ and Mn 2+ -Si 4+ substitution involves dodecahedral and tetrahedral sites in the garnet structure. This leads to the formation of solid-solution garnets and allows for a continuous variation of the local environment of Ce 3+ .…”

Section: Sites (Four-coordinated [Alo 4 ]mentioning

confidence: 99%

“…The emission spectra show that the incorporation of Mn 2+ in garnet-type Y 3 Al 5 O 12 gives rise to broadband yellow-orange Mn 2+ emission. [130][131][132][133] Lu 2 CaMg 2 Si 3 O 12 is another (Ln,Me) 3 (M,M 0 ) 5 O 12 -based solid solution phosphors with a garnet structure. [37][38][39] Lu 3+ /Ca 2+ ions are randomly located in eightfold dodecahedral sites with occupancies of 2/3 and 1/3, respectively.…”

Section: Sites (Four-coordinated [Alo 4 ]mentioning

confidence: 99%

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Ce³⁺-Doped garnet phosphors: composition modification, luminescence properties and applications

2017

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Garnets have the general formula of ABCO and form a wide range of inorganic compounds, occurring both naturally (gemstones) and synthetically. Their physical and chemical properties are closely related to the structure and composition. In particular, Ce-doped garnet phosphors have a long history and are widely applied, ranging from flying spot cameras, lasers and phosphors in fluorescent tubes to more recent applications in white light LEDs, as afterglow materials and scintillators for medical imaging. Garnet phosphors are unique in their tunability of the luminescence properties through variations in the {A}, [B] and (C) cation sublattice. The flexibility in phosphor composition and the tunable luminescence properties rely on design and synthesis strategies for new garnet compositions with tailor-made luminescence properties. It is the aim of this review to discuss the variation in luminescence properties of Ce-doped garnet materials in relation to the applications. This review will provide insight into the relation between crystal chemistry and luminescence for the important class of Ce-doped garnet phosphors. It will summarize previous research on the structural design and optical properties of garnet phosphors and also discuss future research opportunities in this field.

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Section: Sites (Four-coordinated [Alo 4 ]mentioning

confidence: 99%

Section: Sites (Four-coordinated [Alo 4 ]mentioning

confidence: 99%

Ce³⁺-Doped garnet phosphors: composition modification, luminescence properties and applications

2017

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“…Ce 3+ ‐doped garnet‐structure phosphors, known for the application in white solid‐state lighting, have aroused new interests recently for their emerged LPL characteristics after tailoring the intrinsic defect structures (e.g., antisite defect, oxygen vacancy) in the host lattice . Although Ce 3+ ions exhibit strong blue‐light absorption in these phosphors, their LPL were usually found activated by ultraviolet light . Recently, Ueda et al .…”

Section: Introductionmentioning

confidence: 99%

Ce³⁺/Pr³⁺: YAGG: A Long Persistent Phosphor Activated by Blue‐Light

Wang

Lin

et al. 2014

J. Am. Ceram. Soc.

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The requirement of using ultraviolet light to stimulate afterglow luminescence has seriously restricted indoors/outdoors applications of most persistent materials developed hitherto. Herein, efficient blue‐light‐activated Ce3+, Pr3+: YAGG phosphors, showing optimized long‐persistent luminescence lasting for 1 h, were prepared and investigated in detail with the aid of X‐ray diffraction refinement, steady‐state/persistent photoluminescence spectra, room/low‐temperature persistent decay curves, and three‐dimensional thermo‐luminescence spectra. Notably, the afterglow properties were found highly dependent on the Ga content which greatly alters both the host band gap energy and the Ce3+: 5d level structure and thus is beneficial to the electrons' photoionization and trapping processes. Moreover, Pr3+ additive was found not only prolonged the afterglow lifetime of Ce3+ through improving concentration of carriers captured at the trap, but also served as the red‐emissive centers for color tuning. The persistent energy transfer from Ce3+ to Pr3+ was experimentally demonstrated for the first time.

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“…193,194 Furthermore, LaBWO 6: Sm 3+ , Dy 3+ , ZnB 2 O 4 : Bi 3+ , Gd 3+ and YAG: Mn 2+ , Si 4+ phosphors are prepared through solid state reaction technique and are considered as potential materials for luminescent display and UV irradiation dosimeter applications. [195][196][197] Most PDP producers utilize distinct phosphor mixtures namely three distinct green phosphors (ZnSiO 4 : Mn, ZnSiO 4 : Mn + Y, GdBO 3 : Tb) and BaAl 12 O 19 : Mn + Y, GdBO 3 : Tb), as well as blue (BaMgAl 10 O 17 :Eu 2+ ) and red (Y, GdBO 3 :Eu 3+ ) standard phosphors. Blended phosphors are commonly used to compensate for the relatively brief characteristics of the other phosphors.…”

Section: Applications Of Phosphorsmentioning

confidence: 99%

Review— On the Development of Phosphors for Luminescent Materials: Synthesis, Characterization, Applications and Evolution of Phosphors as White-Light-Emitting Diodes

Farooq,

Rafiq,

Shah

et al. 2023

ECS J. Solid State Sci. Technol.

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The manuscript focuses on the concept of nano-phosphors, a remarkable type of material that has been widely explored because of their diverse promising applications. Progress in the development of such nano-phosphors as luminescent materials has received significant research attention. The white-light-emitting diodes (WLEDs) have grown dramatically and represent the most intriguing lighting source of the twenty-first century. The contribution of rare-Earth (RE) ions to lighting technology is explicitly addressed. The additional physical characteristics of white light that are addressed in the present manuscript comprise the correlated color temperature (CCT), the color rendering index (CRI), and the Commission International de’ Eclairage (CIE) chromaticity coordinates. Multiple synthesis methods employed around the globe to produce such industrially important nano-phosphors along with more specialized and impactful techniques to characterize all such materials are thus thoroughly explored. Also, the various technologically significant applications of these materials are described. The evolution of these potentially suitable luminescent materials for WLEDs and their white-light characteristics is also outlined. The manuscript presents a comprehensive overview of the advancement and innovation of nano-phosphors, their application fields and the significant milestones of artificial lighting toward modernization.

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The structure and luminescence properties of long afterglow phosphor Y3−xMnxAl5−xSixO12

Cited by 37 publications

References 31 publications

Ce³⁺-Doped garnet phosphors: composition modification, luminescence properties and applications

Ce³⁺-Doped garnet phosphors: composition modification, luminescence properties and applications

Ce³⁺/Pr³⁺: YAGG: A Long Persistent Phosphor Activated by Blue‐Light

Review— On the Development of Phosphors for Luminescent Materials: Synthesis, Characterization, Applications and Evolution of Phosphors as White-Light-Emitting Diodes

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The structure and luminescence properties of long afterglow phosphor Y3−xMnxAl5−xSixO12

Cited by 37 publications

References 31 publications

Ce3+-Doped garnet phosphors: composition modification, luminescence properties and applications

Ce3+-Doped garnet phosphors: composition modification, luminescence properties and applications

Ce3+/Pr3+: YAGG: A Long Persistent Phosphor Activated by Blue‐Light

Review— On the Development of Phosphors for Luminescent Materials: Synthesis, Characterization, Applications and Evolution of Phosphors as White-Light-Emitting Diodes

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Ce³⁺-Doped garnet phosphors: composition modification, luminescence properties and applications

Ce³⁺-Doped garnet phosphors: composition modification, luminescence properties and applications

Ce³⁺/Pr³⁺: YAGG: A Long Persistent Phosphor Activated by Blue‐Light