1. Shallow traps in YAl[O.sub.3] : Ce single crystal perovskites
- Author
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Fasoli, Mauro, Fontana, Ilaria, Moretti, Federico, Vedda, Anna, Nikl, Martin, Mihokova, Eva, Zorenko, Yuriy V., and Gorbenko, Vitalyi I.
- Subjects
Perovskite -- Thermal properties ,Perovskite -- Atomic properties ,Thermoluminescence -- Evaluation ,Crystals -- Thermal properties ,Crystals -- Atomic properties ,Business ,Electronics ,Electronics and electrical industries - Abstract
The aim of this work is to investigate the influence of shallow traps on scintillating properties of YAl[O.sub.3] : Ce. Wavelength-resolved thermally stimulated luminescence measurements following X-ray irradiation at 10 K have been performed on both undoped and Ce-doped crystals. Different and composite glow curves and emission spectra were obtained. Following glow peaks analysis of YAl[O.sub.3] : Ce, their room temperature decay time was evaluated to be of the order of [10.sup.-4] s. The presence of an athermal tunneling recombination process between traps and [Ce.sup.3+] ions below 100 K has been evidenced by phosphorescence decays. Index Terms--Perovskites, scintillators, thermally stimulated luminescence, YAP.
- Published
- 2008