Study on shaped single crystal growth and scintillating properties of Bi‐doped rare‐earth garnets

Novoselov, A.; Yoshikawa, Akira; Nikl, M.; Solovieva, N.; Fukuda, Tsuguo

doi:10.1002/crat.200410360

Cited by 24 publications

(33 citation statements)

References 16 publications

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“…Single crystals were grown by the micro-pulling-down method [11]. This method is known to be economic, efficient and fast way for materials screening.…”

Section: Methodsmentioning

confidence: 99%

Crystal growth and scintillating properties of (Pr,Si)‐doped YAlO₃

Zhuravleva¹,

Novoselov

Mihóková

et al. 2007

Cryst. Res. Technol.

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This paper deals with Pr-doped and Pr, Si-codoped YAlO 3 single crystal growth by the micro-pulling-down method and investigation of their spectroscopic and scintillating properties. The Pr 3+ 5d-4f radioluminescence intensity is more than 10 times higher than that of Bi 4 Ge 3 O 12 standard sample, but the Si-codoping decreases it. Absorption spectra of as-grown and air-annealed Si,Pr-codoped YAlO 3 samples show along with an onset of 4f-5d transition round 230 nm the induced absorption band at 400 nm which possibly related to a hole center absorption (Pr 4+ or O -). Thermoluminescence measurements above the room temperature were performed in order to monitor deep electron traps. Strong concentration dependence of thermoluminescence was observed for Pr:YAlO 3 glow curves.

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“…Single crystals were grown by the micro-pulling-down method [11]. This method is known to be economic, efficient and fast way for materials screening.…”

Section: Methodsmentioning

confidence: 99%

Crystal growth and scintillating properties of (Pr,Si)‐doped YAlO₃

Zhuravleva¹,

Novoselov

Mihóková

et al. 2007

Cryst. Res. Technol.

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“…As-mixed powders were subjected to heat treatment at 1400°C during 24 h. (Ce,Sr)-doped PrAlO 3 square-shaped single crystals were grown by the µ-PD method using an iridium crucible with a die [14]. The crucible was heated inductively at a frequency of 20 kHz.…”

Section: Methodsmentioning

confidence: 99%

Crystal growth, optical and luminescence properties of (Ce,Sr)‐doped PrAlO₃ single crystals

Novoselov¹,

Yoshikawa

Solovieva

et al. 2007

Cryst. Res. Technol.

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Using the micro-pulling-down method, (Ce,Sr)-doped PrAlO 3 square-shaped single crystals (4×4×12 mm) were grown. Structural parameters studied by X-ray powder diffraction were consistent with R3m space group. Compositional homogeneity was checked with electron probe micro-analysis and found quite uniform. Absorption spectra and luminescence characteristics under UV and X-ray excitations were measured at room temperature with no Ce-related emission appeared.

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“…Such luminophores activated by ions of rare-earth elements are especially common. Moreover, Y 2 O 3 activated by another group of important activators, like zinc and the so-called mercury-like ions, of which bismuth ion (Bi 3+ ) is one, are poorly studied [2,3]. Such compounds can be used as scintillators in luminescent screens or mercury-free luminescent photomultiplier bulbs.…”

Section: Introductionmentioning

confidence: 99%

Structural, Morphological and Optical Study of Bismuth and Zinc Co-Doped Yttrium Oxide Prepared by Solvothermal and Wet Chemical Method

Bhavani¹,

Ganesan²

2016

Acta Phys. Pol. A

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Yttrium oxide (Y2O3) is the most familiar yttrium compound, which is popularly known as host for ion doping of other rare earth elements. Bismuth ion (Bi 3+ ) is well known as an activator and sensitizer in several particular phosphors. Zinc oxide (ZnO) nanomaterial, having a wide band gap, is one of the promising candidates for general illumination applications due to its high optical transparency and color tenability bismuth (Bi) and zinc (Zn) co-doped Y2O3 samples are synthesized by simple precipitation techniques like solvothermal and wet chemical methods. The prepared samples were characterized using X-ray diffraction, scanning electron microscope, energy dispersive X-ray spectra, ultraviolet-visible absorbance spectroscopy and photoluminescence spectrophotometry. Ultraviolet-visible absorption studies showed absorption only around 340 nm whereas photoluminescence shows peaks around 500 nm, 680 nm, and 1020 nm for Bi and Zn co-doped Y2O3. The photoluminescence spectrum shows emission in blue region (500 nm) due to Zn dopant and red and near infrared region (680 and 1020 nm) due to Bi dopant. This is a new material which can effectively work as an efficient and cheap red phosphor.

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Study on shaped single crystal growth and scintillating properties of Bi‐doped rare‐earth garnets

Cited by 24 publications

References 16 publications

Crystal growth and scintillating properties of (Pr,Si)‐doped YAlO₃

Crystal growth and scintillating properties of (Pr,Si)‐doped YAlO₃

Crystal growth, optical and luminescence properties of (Ce,Sr)‐doped PrAlO₃ single crystals

Structural, Morphological and Optical Study of Bismuth and Zinc Co-Doped Yttrium Oxide Prepared by Solvothermal and Wet Chemical Method

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Study on shaped single crystal growth and scintillating properties of Bi‐doped rare‐earth garnets

Cited by 24 publications

References 16 publications

Crystal growth and scintillating properties of (Pr,Si)‐doped YAlO3

Crystal growth and scintillating properties of (Pr,Si)‐doped YAlO3

Crystal growth, optical and luminescence properties of (Ce,Sr)‐doped PrAlO3 single crystals

Structural, Morphological and Optical Study of Bismuth and Zinc Co-Doped Yttrium Oxide Prepared by Solvothermal and Wet Chemical Method

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Product

Resources

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Crystal growth and scintillating properties of (Pr,Si)‐doped YAlO₃

Crystal growth and scintillating properties of (Pr,Si)‐doped YAlO₃

Crystal growth, optical and luminescence properties of (Ce,Sr)‐doped PrAlO₃ single crystals