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We report the luminescence properties and decay profiles of Ce:YAlO_3,Mn:YAlO_3,and Ce,Mn:YAlO_3 crystals grown by Czochralski method.The spectroscopic properties show that both Mn~(2+) ions and Mn~(4+) ions exist in Mn:YAlO_3 and Ce,Mn:YAlO_3 crystals.The Mn~(2+) ions have a broad emission band of 60 nm in Mn-doped YAlO_3 crystal at 530 nm.The luminescence spectra also indicate that there is significant energy transfer between Ce~(3+) and Mn~(4+) in Ce,Mn:YAlO_3 crystal.Because of the energy transfer,the first decay component in Ce,Mn:YAlO_3 decreases from 24.5 to 10.8 ns,which is much faster than that of Ce:YAlO_3.
We report the luminescence properties and decay profiles of Ce: YAlO_3, Mn: YAlO_3, and Ce, Mn: YAlO_3 crystals grown by Czochralski method.The spectroscopic properties show that both Mn ~ (2+) and Mn ~ (4+) ions exist in Mn: YAlO_3 and Ce, Mn: YAlO_3 crystals.The Mn ~ (2+) ions have a broad emission band of 60 nm in Mn-doped YAlO_3 crystal at 530 nm. The luminescence spectra also indicate that there is significant energy transfer Mn: YAlO 3 crystal.Because of the energy transfer, the first decay component in Ce, Mn: YAlO 3 decreases from 24.5 to 10.8 ns, which is much faster than that of Ce: YAlO_3.