White light emission, quantum cutting, and afterglow luminescence of Eu3+-doped Ba5Gd8Zn4O21

Yang, Yanmin; Li, Ziqiang; Li, Zhiqiang; Jiao, Fuyun; Su, Xianyuan; Ge, Dayong

doi:10.1016/j.jallcom.2013.04.193

Cited by 23 publications

(10 citation statements)

References 27 publications

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“…In addition, many Eu 3+ -doped oxides are also reported, such as SrMg 2 (PO 4 ) 2 :Eu 3+ ,Zr 4+ , 294 Lu 2 O 3 :Eu 3+ , 173 MO:Eu 3+ (M = Ca, Sr, Ba) 172 and Ba 5 Gd 8 Zn 4 O 21 :Eu 3+ . 295,296 Among the rare earth ions, Sm 3+ is famous for generating an intense reddish orange emitting light, which is ascribed to the typical transitions between the ground state and the excited state electron configuration of Sm 3+ . In fact, as an important red emitting center, the LPP of Sm 3+ has been found in various material systems from oxides (CaO:Sm 3+ , 297 La 2 Zr 2 O 7 :Sm 3+ ,Ti 4+ , 266 Sr 2 ZnSi 2 O 7 :Sm 3+ , 205 ) to oxysulfide (La 2 O 2 S:Sm 3+ ), 273 then to fluoride (KY 3 F 10 :Sm 3+ ).…”

Section: Activatorsmentioning

confidence: 99%

Long persistent phosphors—from fundamentals to applications

2016

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Owing to the unique mechanism of photoelectron storage and release, long persistent phosphorescence, also called long persistent luminescence or long lasting afterglow/phosphorescence, plays a pivotal role in the areas of spectroscopy, photochemistry, photonics and materials science. In recent years, more research has focused on the manipulation of the morphology, operational wavebands and persistent duration of long persistent phosphors (LPPs). These desired achievements stimulated the growing interest in designing bio-labels, photocatalysts, optical sensors, detectors and photonic devices. In this review, we present multidisciplinary research on synthetic methods, afterglow mechanisms, characterization techniques, materials system, and applications of LPPs. First, we introduce the recent developments in LPPs for the synthesis of nanoparticles from the aspects of particle sizes, monodispersity and homogeneity based on the urgent application of bio-imaging. In the later sections, we present the possible mechanisms, which involve the variation of trap distribution during the trapping and de-trapping process, complicated photo-ionization reaction of trap site levels and impurity centers together with their corresponding migration kinetics of carriers. Meanwhile, we emphasize the characterization techniques of defects, used to qualitatively or quantitatively describe the types, concentrations and depths of the traps. This review article also highlights the recent advances in suggested LPPs materials with a focus on the LPPs' hosts and optically active centers as well as their control, tuning and intrinsic links. We further discuss the classification of LPPs based on the different emission and excitation wavebands from the ultraviolet to the near-infrared region along with an overview of the activation mode of afterglow. Afterwards, we provide an exhibition of new products towards diverse application fields, including solar energy utilization, bio-imaging, diagnosis, and photocatalysts. Finally, we summarize the current achievements, discuss the problems and provide suggestions for potential future directions in the aforementioned parts.

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Section: Activatorsmentioning

confidence: 99%

Long persistent phosphors—from fundamentals to applications

2016

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“…Eu 3+ is one of the most studied rare earth ions because of its unique Stokes emission characteristics [2,3,24,[36][37][38][39][40][41][42][43][44]. In addition, it has a nearly monochromatic strong visible red emission around 612 nm.…”

Section: Introductionmentioning

confidence: 99%

Optical and X-ray induced luminescence from Eu3+ doped La2Zr2O7 nanoparticles

Pokhrel

Alcoutlabi

Mao

2017

Journal of Alloys and Compounds

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Nanocrystalline complex oxide scintillators have emerged for use in X-ray and gamma-ray detection in recent years. Here the doping concentration dependence of europium-doped lanthanum zirconate (La2Zr2O7:xmol%Eu 3+ , x = 1 to 35) nanoparticles (NPs) were investigated by using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, scanning electron microscopy (SEM), and optically and X-ray excited luminescence. Spectroscopic methods revealed a gradual increase in disorder from the ordered pyrochlore structure to the defect fluorite structure as the Eu 3+ concentration increases. They showed red luminescence under charge transfer band (258 nm), band gap (322 nm), and Eu 3+ 4f-4f bands (394 and 465 nm) excitation with optical intensity dependent on the Eu 3+ doping concentration and not quenching up to 5% Eu 3+ doping concentration. The quantum yield of the red emission was found to depend on the Eu 3+ doping concentration and excitation wavelength.Moreover, these La2Zr2O7:x%Eu 3+ NPs demonstrated an atypical Eu 3+ related scintillating response with a red emission under high-energy X-ray excitation with the scintillation intensity also depending on the Eu 3+ doping concentration. Finally, the irradiation damage behavior induced by the excitation source was representatively examined for the La2Zr2O7:5%Eu 3+ NPs. It is expected that the current study will pave the way for future research of nanoscintillators.

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“…60 This can greatly decrease luminescence quenching from 5 D 1,2,3 by fast multi-phonon relaxations in Eu 3+ . 61…”

Section: Discussionmentioning

confidence: 99%

Microstructural origin of peculiar spectra and excellent luminescence properties of Y₁₀Ta₄O₂₅:Eu³⁺ with a fluorite-related structure

Wei

Yang

Liu

et al. 2022

Inorg. Chem. Front.

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White light emission, quantum cutting, and afterglow luminescence of Eu3+-doped Ba5Gd8Zn4O21

Cited by 23 publications

References 27 publications

Long persistent phosphors—from fundamentals to applications

Long persistent phosphors—from fundamentals to applications

Optical and X-ray induced luminescence from Eu3+ doped La2Zr2O7 nanoparticles

Microstructural origin of peculiar spectra and excellent luminescence properties of Y₁₀Ta₄O₂₅:Eu³⁺ with a fluorite-related structure

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White light emission, quantum cutting, and afterglow luminescence of Eu3+-doped Ba5Gd8Zn4O21

Cited by 23 publications

References 27 publications

Long persistent phosphors—from fundamentals to applications

Long persistent phosphors—from fundamentals to applications

Optical and X-ray induced luminescence from Eu3+ doped La2Zr2O7 nanoparticles

Microstructural origin of peculiar spectra and excellent luminescence properties of Y10Ta4O25:Eu3+ with a fluorite-related structure

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Microstructural origin of peculiar spectra and excellent luminescence properties of Y₁₀Ta₄O₂₅:Eu³⁺ with a fluorite-related structure