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

Eu
²⁺
, Mn
²⁺
codoped Ba
₃
MgSi
₂
O
₈
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 Eu
²⁺
ions partially replaces Ba
²⁺
sites in host. The emission band peaking at 615nm originates from the
⁴
T
₁
→
⁶
A
₁
transition of Mn
²⁺
ions. When the concentrations of the Eu
²⁺
, Mn
²⁺
and Al
³⁺
were 0.1mol, 0.1mol and 0.35mol respectively, the sample presented white emitting under excitation wavelength of 380 nm.