Crystal growth of Ce: PrF3 by micro-pulling-down method

Yoshikawa, Akira; Satonaga, T.; Kamada, Kei; Sato, Hiroki; Nikl, M.; Solovieva, N.; Fukuda, Tsuguo

doi:10.1016/j.jcrysgro.2004.06.038

Cited by 149 publications

(91 citation statements)

References 20 publications

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“…Crystal growth was carried out with graphite crucible under Ar þ CF 4 atmosphere using the micro-pulling-down (m-PD) furnace with vacuum-tight systems tailored for fluoride growth, for details see (Yoshikawa et al, 2004).…”

Section: Methodsmentioning

confidence: 99%

Doubly doped BaY2F8:Er,Nd VUV scintillator

Pejchal¹,

Nikl²,

Fukuda³

et al. 2010

Radiation Measurements

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a b s t r a c t Doubly doped BaY 2 F 8 :Er,Nd scintillation crystals were grown by modified micro-pulling-down method. The Er co-doping was chosen to enhance the energy transfer from the host lattice to the Nd 3þ luminescence center via the 5d-levels of Er 3þ , which can be enabled by the overlap of Er 3þ 5d-4f emission spectrum with the Nd 3þ 4f-5d absorption. The energy transfer was clearly evidenced in the BaY 2 F 8 :Er,Nd.The processes are complicated by energy migration to killer centres and/or cross-relaxation processes. The luminescence and energy transfer mechanism are discussed.

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Section: Methodsmentioning

confidence: 99%

Doubly doped BaY2F8:Er,Nd VUV scintillator

Pejchal¹,

Nikl²,

Fukuda³

et al. 2010

Radiation Measurements

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“…However, it also points to an enhanced energy migration over the Pr 3+ energy levels. Because of expected overlapping between Pr 3+ 5d 1 -4f emission and 4f-5d 1,2 absorption bands, quite efficient energy transfer to the Ce 3+ may happen [7]. Investigating this phenomenon, we have reported recently on crystal growth and luminescence properties of the Ce-doped PrAlO 3 , but the obtained luminescence intensity in the expected spectral region of Ce 3+ emission was quite weak [9].…”

Section: Introductionmentioning

confidence: 96%

“…Wide commercial application of Ce 3+ -doped YAlO 3 , Gd 2 SiO 5 and Lu 2 SiO 5 in medical imaging systems, high-energy physics and industry [3][4][5][6] stimulates the search for new scintillating materials. Doping PrF 3 with Ce 3+ has been shown to be a novel approach to obtain potentially promising scintillator because of efficient energy transfer from the Pr 3+ subsystem to Ce 3+ ions via the 1 S 0 level of Pr 3+ [7]. Furthermore, relatively easy doping of the Ce 3+ ion into a Pr-based crystal lattice with possibility to form a wide range of solid solutions is of practical importance.…”

Section: Introductionmentioning

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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“…These two characteristics open the possibility to develop high efficiency laser devices for micro-optoelectronic and waveguides with low loss transmission. Some research groups have started to develop this type of monocrystal fibers [3][4][5] but their growth is very delicate because these materials are very sensitive to OH radical contamination. In fact a contamination of a few tens ppm can compromise the optical characteristics of the samples.…”

Section: Introductionmentioning

confidence: 99%