Preparation and characterization of long afterglow M2MgSi2O7-based (M: Ca, Sr, Ba) photoluminescent phosphors

The trap states in the Sr2MgSi2O7 and (Sr,Ca)MgSi2O7 long afterglow phosphor activated by Eu2+ and Dy3+

“…The polycrystalline powder samples SB and SBG were prepared by high temperature solid phase reaction using the raw SrCO 3 purity of 99.99%. The raw materials were mixed then sintered at 1300 • C for 5 h in a reducing gas flow (5 at.% H 2 +N 2 ).…”

“…Therefore the silicate host is attracting more attention in the application of long afterglow phosphors [3][4][5].…”

Long lasting phosphorescence of Gd2O2S:Eu,Ti,Mg nanorods via a hydrothermal routine

“…The first persistent phosphor (ZnS:Cu) was synthesized by Sidot in 1866. From then on, a lot of new long afterglow phosphors were synthesized, such as Eu 2+ activated alkaline earth aluminates [1][2][3] and alkaline earth silicates [4][5][6][7]. Though alkaline earth aluminates have made great success and have been widely employed in many fields, such as luminescent road signs and emergency lighting, further developments of such long lasting phosphors are still required in order to realize the full color luminescence.…”

Photoluminescent properties of new phosphor Sr2ZnSi2O7: M (M=Mn2+, Tb3+)

“…Recently, alkaline earth silicates doped with rare earth ions have attracted research interests in the fi eld of photoluminescence because of their high luminescent performance and chemical stability [1] . The phosphors have been intensively researched as long afterglow phosphors [2][3][4][5] .…”