long lasting phosphor;
luminescence;
synchrotron radiation;
rare earths;
D O I:
暂无
中图分类号:
O69 [应用化学];
学科分类号:
081704 ;
摘要:
The Eu2+ and Dy3+ codoped silicates, Ca2MgSi2O7: Eu2+, Dy3+, was synthesized, and its photoluminescence properties were studied with synchrotron radiation. Under synchrotron radiation excitation at 305 nm, only the characteristic emission from Eu2+ was excited. But the characteristic emission from Dy3+ was also found under 175 nm excitation, besides the characteristic emission of Eu2+. The characteristic emission from Dy3+ was detected in the Eu2+ and Dy3+ codoped long lasting phosphorescence materials, which indicates that Dy3+ is still existed in the phosphors under continue excitation at 175 nm.
机构:
Univ Turku, Dept Chem, FI-20014 Turku, Finland
Nara Inst Sci & Technol, Grad Sch Mat Sci, Nara 6300192, Japan
Grad Sch Mat Res, Turku, FinlandUniv Turku, Dept Chem, FI-20014 Turku, Finland