Journal ArticleDOI
Luminescence and defects creation in Ce3+-doped Lu3Al5O12 crystals
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TLDR
In this paper, Lu3Al5O12:Ce crystals were compared with Y3Al 5O12 :Ce, and it was concluded that in both systems the efficiency of energy transfer from the host lattice to the impurity ion can be noticeably increased by the decrease of concentration of the defects responsible for their intrinsic luminescence.Abstract:
Luminescence, energy transfer and defects creation processes were studied at 4.2–300 K for Ce3+-doped Lu3Al5O12 crystals under excitation in the 2.5–11.5 eV energy range. The results obtained were compared with the characteristics of Y3Al5O12:Ce crystals. It was concluded that in both systems the efficiency of energy transfer from the host lattice to the impurity ion can be noticeably increased by the decrease of concentration of the defects responsible for their intrinsic luminescence. The origin of the optically created defects and possible mechanisms of their formation are discussed. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)read more
Citations
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2 inch diameter single crystal growth and scintillation properties of Ce:Gd3Al2Ga3O12
Kei Kamada,Takayuki Yanagida,Takanori Endo,Kousuke Tsutumi,Yoshiyuki Usuki,Martin Nikl,Yutaka Fujimoto,Akihiro Fukabori,Akira Yoshikawa +8 more
TL;DR: In this paper, single crystals of Gd3Al2Ga3O12 (Ce:GAGG) were grown by the Czochralski (Cz) method using [100] oriented seed.
Journal ArticleDOI
Photo‐ and radioluminescence of Pr‐doped Lu3Al5O12 single crystal
TL;DR: In this paper, photo and radioluminescence characteristics of the Pr3+-doped Lu3Al5O12 single crystal are reported and compared with those of Pr3doped Y3Al 5O12.
Journal ArticleDOI
Shallow traps and radiative recombination processes in Lu3Al5O12:Ce single crystal scintillator
Martin Nikl,Anna Vedda,Mauro Fasoli,I. Fontana,V. Laguta,E. Mihokova,J. Pejchal,J. Rosa,K. Nejezchleb +8 more
TL;DR: In this article, thermal stimulated luminescence (TSL) glow curves and emission spectra were studied in undoped and Ce-doped single crystals by wavelength resolved TSL measurements in the $10\char21{}310\phantom{\rule{0.3em}{0ex}}\mathrm{K}$ range.
Journal ArticleDOI
Rapid Microwave Preparation of Highly Efficient Ce3+-Substituted Garnet Phosphors for Solid State White Lighting
Alexander Birkel,Kristin A. Denault,Nathan C. George,Courtney E. Doll,Courtney E. Doll,Bathylle Hery,Bathylle Hery,Alexander Mikhailovsky,Christina S. Birkel,Byungchul Hong,Ram Seshadri +10 more
TL;DR: In this article, a simple microwave heating technique involving the use of a microwave susceptor to provide the initial heat source was used to obtain phase pure, Ce3+substituted garnet compounds in under 20 min of reaction time.
Journal ArticleDOI
Fundamental Limitations in the Performance of ${\rm Ce}^{3+}$ –, ${\rm Pr}^{3+}$ –, and ${\rm Eu}^{2+}$ –Activated Scintillators
TL;DR: In this article, the fundamental limits on scintillation decay and energy resolution with inorganic inorganic scintillators were determined. But, the fundamental limit on the energy resolution was not addressed in this paper.
References
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Journal ArticleDOI
Properties of the YAG:Ce scintillator
TL;DR: In this paper, the light yield, light pulse shape due to γ-rays and α-particles, energy resolution and time resolution of the new YAG:Ce scintillator were studied using a light readout by means of the XP2020Q photomultiplier and the S3590-03 photodiode.
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LuAlO/sub 3/:Ce and other aluminate scintillators
TL;DR: LuAlO/sub 3/Ce as discussed by the authors is an extension of other well known cerium-doped scintillators, the yttrium-based orthoaluminate and garnet, and displays particularly promising performance.
Journal ArticleDOI
Traps and Timing Characteristics of LuAG:Ce3+ Scintillator
TL;DR: In this article, a direct comparison between YAP:Ce{sup 3++} and LuAG: Ce{Sup 3+} scintillators is performed for radioluminescence light output, scintillation decay, and thermolumine properties.
Journal ArticleDOI
Luminescence efficiency of cerium doped insulators: The role of electron transfer processes
TL;DR: In this article, the authors compared optical and photoelectrical properties of a very efficient scintillator material (Lu2(SiO4)O:Ce) to those of cerium doped oxides with quenched emission.
Journal ArticleDOI
Investigation of competitive recombination processes in rare-earth activated garnet phosphors
TL;DR: In this paper, a series of spectral, kinetic, and relative quantum intensity measurements were performed for the rare-earth activated oxides (YAlG): Ce (0.01%) and Tb (1.5%) crystals.