Photoluminescence and Thermoluminescence of the Oxygen-Deficient YAG, YAP, and YAM Phosphors

Ya. Zhydachevskyya,b, I. Kamińska a, M. Glowacki a, A. Kilian c, S. Ubizskii b, P. Bilski c, M. Berkowski a, K. Fronc a, D. Elbaum a and A. Suchockia,d aInstitute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, PL-02668 Warsaw, Poland bLviv Polytechnic National University, S. Bandera 12, Lviv 79646, Ukraine cInstitute of Nuclear Physics, Polish Academy of Sciences, E. Radzikowskiego 152, 31-342 Krakow, Poland dInstitute of Physics, University of Bydgoszcz, J. Weyssenhoffa 11, 85-072 Bydgoszcz, Poland

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Photoluminescence and thermoluminescence of the oxygen-deficient Y3Al5O12 (YAG), YAlO3 (YAP) and Y4Al2O9 (YAM) ceramics has been studied. Corresponding ceramic samples prepared by the same way however in oxidizing conditions (in air) were studied for comparison. The observed luminescent properties of the materials are related to the F-type centers created on the basis of oxygen vacancies, antisite (YAl) defects and uncontrolled Tb3+ impurity ions.

DOI: 10.12693/APhysPolA.133.943 PACS numbers: 78.55.Hx