Synthesis and luminescent properties of Er³+ doped CaZrO₃long persistent phosphors
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초록
Novel long persistent phosphors of CaZrO₃:Er³+ have been synthesized by traditional solid state reaction method.The long persistent phosphor crystaline particles were characterized by the X-ray difraction (XRD), photoluminescencespectrophotometer, thermoluminescence (TL) and luminance meter. The results reveal that the samples are composed ofsingle CaZrO₃ phase. The broadband emission spectra of 446 nm peak and 550 nm peak was revealed by synthesized athigh temperature in N2 gas. Gren long persistent phosphors have been observed in the system for over 6 h after UViradiation (254 nm). The main emission peak was ascribed to Er³+ ions transition from 5D5/2→4F9/2, 2H12/2, 4S3/2→4I13/2 and2G9/2→4I13/2, and the afterglow may be ascribed to the suitable trap centers in the CaZrO₃ host lattice.
Abstract
Novel long persistent phosphors of CaZrO₃:Er³+ have been synthesized by traditional solid state reaction method.The long persistent phosphor crystaline particles were characterized by the X-ray difraction (XRD), photoluminescencespectrophotometer, thermoluminescence (TL) and luminance meter. The results reveal that the samples are composed ofsingle CaZrO₃ phase. The broadband emission spectra of 446 nm peak and 550 nm peak was revealed by synthesized athigh temperature in N2 gas. Gren long persistent phosphors have been observed in the system for over 6 h after UViradiation (254 nm). The main emission peak was ascribed to Er³+ ions transition from 5D5/2→4F9/2, 2H12/2, 4S3/2→4I13/2 and2G9/2→4I13/2, and the afterglow may be ascribed to the suitable trap centers in the CaZrO₃ host lattice.
참고문헌 (15)
- J. Holsa, , Compd, 323, pp.326~ (2001)
- H.B. Yuan, , J. Electrochem. Soc, 147, pp.3154~ (2000)
- Y.H. Lin, , Appl. Phys. Lett, 81, pp.996~ (2002)
- Y.H. Lin, , Mater. Lett, 51, pp.14~ (2001)
- T. Aitasalo, "Mechanisms of persistent luminescence in Eu 2+ , RE 3+ doped alkaline earth aluminates", J. Lumin, 60, pp.94~95 (2001)
- X. Zhang, "Enhancement of red fluorescence and afterglow in CaTiO3: Pr 3+ by addition of Lu2O3", J. Lumin, 122-123, pp.959~ (2007)
- S. Ye, "Min 2+ activated red long persistent phosphors in BaMg2Si2O7", J. Lumin, 122-123, pp.914~ (2007)
- S. Abe, "Luminescent properties of red long persistence phosphors, BaMg2Si2O7 : Eu 2+ ,Mn 2+", J. Alloy. Compounds, pp.1~ (2005)
- B. Lei, "Green emitting long lasting phosphorescence (LLP) properties of Mg2SnO4 : Mn 2+ phosphor", J. Lumin, 118, pp.173~ (2006)
- C. Shi, "The role of Eu 2+ and Dy 3+ in the blue long-lasting phosphor Sr2MgSi2O7 : Eu 2+ ,Dy 3+", J. Lumin, 122-123, pp.11~ (2007)
- Y. Cong, "Long lasting phosphorescent properties of Ti doped ZrO2", J. Lumin, 126, pp.822~ (2007)
- Z. Liu, "Long afterglow in Pr 3+ and Li + co-doped CaZrO3", Opt. Communications, 251, pp.388~ (2005)
- A. Nag, "Role of B2O3 on the phase stability and long phosphorescence of SrAl2O4: Eu, Dy", J. Alloy. Compounds, 354, pp.231~ (2003)
- H. Yang, "Upconversion luminescence and kinetics in Er 3+ : YAlO3 under 652.2 nm excitation", J. Lumin, 124, pp.208~ (2007)
- R.A. Davies, , Solid State Ionics, 130, pp.115~ (2000)