Eu2+, Mn2+ Co-Doped Ba3MgSi2O8 Single-Host White Emission Phosphor

摘要

Eu2+, Mn2+ codoped Ba3MgSi2O8 single-host white emission phosphor was prepared by solid-state reaction method. Three emission bands peaking at 435nm, 480nm and 615nm were observed under excitation wavelength of 380 nm. The 435nm and 480nm emission bands are attributed to 5d→4f transition of Eu2 + ions partially replaces Ba2+ sites in host. The emission band peaking at 615nm originates from the 4T1→6A1 transition of Mn2 + ions. When the concentrations of the Eu2+, Mn2+ and Al3+ were 0.1mol, 0.1mol and 0.35mol respectively, the sample presented white emitting under excitation wavelength of 380 nm.