摘要
A series of red phosphors Eu3＋-doped MMgP2O7（M=Ca,Sr,Ba） were synthesized by solid-state reaction method.X-ray powder diffraction（XRD） analysis confirmed the formation of pure CaMgP2O7,SrMgP2O7 and BaMgP2O7 phase.Photoluminescence spectra of MMgP2O7（M=Ca,Sr,Ba）：Eu3＋ phosphors showed a strong excitation peak at around 400 nm,which was coupled with the characteristic emission（350-400 nm） from UV light-emitting diode.The CaMgP2O7：Eu3＋,SrMgP2O7：Eu3＋ and BaMgP2O7：Eu3＋ phosphors showed strong emission bands peaking at 612,593 and 587 nm,respectively.Due to the difference of the ion sizes between Ba2＋（0.142 nm）,Sr2＋（0.126 nm）,Ca2＋（0.112 nm）,Mg2＋（0.072 nm） and Eu3＋（0.107 nm）,Eu3＋ ions were expected to substitute for different sites in CaMgP2O7,SrMgP2O7 and BaMgP2O7 lattice.
A series of red phosphors Eu3＋-doped MMgP2O7（M=Ca,Sr,Ba） were synthesized by solid-state reaction method.X-ray powder diffraction（XRD） analysis confirmed the formation of pure CaMgP2O7,SrMgP2O7 and BaMgP2O7 phase.Photoluminescence spectra of MMgP2O7（M=Ca,Sr,Ba）：Eu3＋ phosphors showed a strong excitation peak at around 400 nm,which was coupled with the characteristic emission（350-400 nm） from UV light-emitting diode.The CaMgP2O7：Eu3＋,SrMgP2O7：Eu3＋ and BaMgP2O7：Eu3＋ phosphors showed strong emission bands peaking at 612,593 and 587 nm,respectively.Due to the difference of the ion sizes between Ba2＋（0.142 nm）,Sr2＋（0.126 nm）,Ca2＋（0.112 nm）,Mg2＋（0.072 nm） and Eu3＋（0.107 nm）,Eu3＋ ions were expected to substitute for different sites in CaMgP2O7,SrMgP2O7 and BaMgP2O7 lattice.
基金
Project supported by National Natural Science Foundation of China (61066006)
Natural Science Foundation of Guangxi Province (2011GXNSFA018054)
