Title of article
Luminescence in ZnSe scintillation crystals co-doped with oxygen and aluminum
Author/Authors
Shevchenko، نويسنده , , D. and Mickevi?ius، نويسنده , , J. and Starzhinskiy، نويسنده , , N. and Zenya، نويسنده , , I. and Zhukov، نويسنده , , A. and Tamulaitis، نويسنده , , G.، نويسنده ,
Pages
5
From page
14
To page
18
Abstract
Zinc selenide scintillation crystals isoelectronically doped with aluminum and oxygen by introducing Al2O3 into the charge were grown, and their emission was studied under photo- and X-ray- excitation, and comparison of their emission properties to those of the conventional scintillator ZnSe(Te) was accomplished. It is demonstrated that this technique for oxygen introduction enables the formation of oxygen-related deep donor–acceptor pairs (DAPs) acting as radiative recombination centers in ZnSe(O,Al) up to the densities exceeding the density of the corresponding Te-related DAPs in ZnSe(Te) at the doping level of 1 wt%. ZnSe(O,Al) exhibits a higher photoluminescence intensity than that in ZnSe(Te) because of more efficient light absorption, while the photoluminescence quantum yield and the emission intensity under X-ray excitation show an opposite trend.
Keywords
ZnSe , Scintillators , quantum yield , Luminescence , Isoelectronic doping
Journal title
Astroparticle Physics
Record number
2012065
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