New efficient OSL detectors based on the crystals of Ce3+ doped Gd3Al5−xGaxO12 mixed garnet

Bilski, P.; Mrozik, Anna; Kłosowski, M.; Gieszczyk, W.; Zorenko, Yu.; Kamada, Kei; Yoshikawa, Akira; Sidletskiy, O.

doi:10.1016/j.mseb.2021.115448

Cited by 7 publications

(2 citation statements)

References 45 publications

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“…At room temperature the excitation and emission spectra of GGAG:Ce with doping concentrations of 4, 2 and 0.5 mol% were obtained as in figures 7(a) and (b). The emission spectra were measured at excitation of 450 nm a broad emission band was observed ranging from 450 to 700 nm, They were determined to be electron transitions from the Ce 3+ ion which related to the 5d 1 to 4 f ( 2 F 5/2 and 2 F 7/2 ) transitions [25]. Each spectrum's shapes are comparable and all show the usual green-yellow emission of Ce 3+ in garnet material.…”

Section: Photoluminescence Properties Of Ggag:ce Powdermentioning

confidence: 98%

Synthesis of cerium-doped gadolinium gallium aluminum garnet (GGAG:Ce) scintillating powder via solvothermal method

Oad,

Pandya,

Rawat

et al. 2024

Phys. Scr.

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The powder material Gd3Ga3Al2O12:Ce (GGAG doped with Cerium) has garnered significant attention in radiation detection due to its high light yield and rapid decay time. Despite its potential, the synthesis of high-quality and reproducible GGAG:Ce scintillating powder remains a considerable challenge. In this study, we present a solvothermal approach with an annealing temperature of 1300 °C for producing cerium-doped GGAG powder with varying concentrations (4, 2, and 0.5 mol%). The structural and luminescent characteristics were meticulously examined using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), photoluminescence (PL), radioluminescence (RL) spectroscopy, and X-ray photoelectron spectroscopy (XPS). XRD analysis confirmed the single-cubic phase garnet structure of the synthesized powder. By comparing the intermediate solvothermal products synthesized at different sintering temperatures (900 °C for 3 hours and 1300 °C for 1 and 3 hours), a direct correlation between solvothermal conditions and the structure/property relationships of the product was established. FESEM images revealed an ellipsoidal to irregular morphology of the as-synthesized GGAG:Ce microparticles, ranging from 0.1 to 0.3 µm, regardless of the Ce concentration. PL spectra demonstrated a strong emission peak at approximately 550 nm, characteristic of Ce3+ ions. RL data confirmed the peak luminescence at around 550 nm, with an almost twofold increase in intensity as the concentration of Ce3+ increased from 0.5 mol% to 4 mol%. XPS data disclosed the Ce3+/Ce4+ ratio in solvothermally synthesized GGAG:Ce, wherein Ce loading of 4 mol% demonstrated the increase in Ce3+ concentration to 95%, whereas the concentration of Ce4+ decreased to 5%. Notably, the highest luminescence efficiency was achieved with GGAG:Ce at a 4 mol% concentration. Thus, the solvothermal method employed in GGAG:Ce synthesis presents a straightforward approach, yielding rapid results with precise control over particle morphology and size.

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Section: Photoluminescence Properties Of Ggag:ce Powdermentioning

confidence: 98%

Synthesis of cerium-doped gadolinium gallium aluminum garnet (GGAG:Ce) scintillating powder via solvothermal method

Oad,

Pandya,

Rawat

et al. 2024

Phys. Scr.

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“…Благодаря выраженной широкой полосе фотолюминесценции в желтой области спектра [1] YAG:Ce 3+ нашел применение в качестве люминофора в светодиодах белого свечения [2]. Кроме того, YAG:Ce 3+ проявляет сцинтилляционные свойства и применяется для изготовления детекторов рентгеновского излучения [3,4]. Одним из перспективных направлений применения пленок YAG:Ce 3+ является модификация свойств фотопреобразователей [5].…”

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Синтез и структурные свойства тонких пленок YAG:Ce-=SUP=-3+-=/SUP=-, полученных методом импульсного лазерного напыления

Девицкий¹,

Кравцов²

2023

Письма В Журнал Технической Физики

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Thin YAG:Ce3+ films were synthesized by pulsed laser deposition. For the first time, the dependences of the thickness, phase composition, and photoluminescence of films on the substrate temperature during synthesis were studied. It is shown that, regardless of the synthesis temperature in the range of 100-400 °C, the resulting films had a polycrystalline structure. With an increase in the substrate temperature, an increase in the film growth rate was observed. Despite the polycrystalline structure of the films, after annealing at 900 °C, YAG:Ce3+ thin films exhibited pronounced photoluminescence, which opens up the possibility of their application as modifying coatings for photoconverters, as well as for X-ray detectors.

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Structural, Morphological and Luminescence Properties of Sol–Gel Derived Gd3Al2Ga3O12:Ce: Effect of Molecular Weights of Cross-Linking Agent

Boukerika,

Hammoum,

Zaidi

et al. 2024

J Inorg Organomet Polym

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New efficient OSL detectors based on the crystals of Ce3+ doped Gd3Al5−xGaxO12 mixed garnet

Cited by 7 publications

References 45 publications

Synthesis of cerium-doped gadolinium gallium aluminum garnet (GGAG:Ce) scintillating powder via solvothermal method

Synthesis of cerium-doped gadolinium gallium aluminum garnet (GGAG:Ce) scintillating powder via solvothermal method

Синтез и структурные свойства тонких пленок YAG:Ce-=SUP=-3+-=/SUP=-, полученных методом импульсного лазерного напыления

Structural, Morphological and Luminescence Properties of Sol–Gel Derived Gd3Al2Ga3O12:Ce: Effect of Molecular Weights of Cross-Linking Agent

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