Author/Authors :
Yu Zorenko، نويسنده , , V. Gorbenko، نويسنده , , I. Konstankevych، نويسنده , , A. Voloshinovskii، نويسنده , , G. Stryganyuk، نويسنده , , V. Mikhailin، نويسنده , , V. Kolobanov، نويسنده , , D. Spassky، نويسنده ,
Abstract :
Luminescent properties of phosphors based on single-crystalline films (SCF) of Y3Al5O12:Ce (YAG:Ce) and Lu3Al5O12:Ce (LuAG:Ce) garnet have been analyzed in comparison with single-crystal (SC) analogues. It has been shown that the main peculiarity of luminescent properties of YAG:Ce and LuAG:Ce SCF as compared to SC is determined by the extremely low concentration of YAl3+ and LuAl3+ antisite defects (AD) in SCF. The advantages of phosphors based on YAG:Ce and LuAG:Ce SCF are caused by the absence in these SCF the additional channels for dissipation of excitation energy connected with AD and vacancy-type defects.
Keywords :
Anti-site defects , garnets , single crystals , Single-crystalline films , excitons , Luminescence , Ce-dopant
