Effect of boron substitution on the preparation and luminescence of Eu2+ doped strontium aluminates

Characterizations of Eu, Dy co-doped SrAl2O4 phosphors prepared by the solid-state reaction with B2O3 addition

“…On the other hand, the substitution of B 3+ ions was supposed to enhance the hole trapping ability of Dy 3+ ions that increases the phosphorescent afterglow [6,7,10]. Nevertheless, Niittykoski et al indicated that the UV excited luminescence of SrAl 2 O 4 :Eu 2+ was enhanced but persistent luminescence suppressed by increasing boron concentration [11].…”

Effect of flux on the properties of CaAl2O4:Eu2+, Nd3+ long afterglow phosphor

“…It is hoped that the phosphor can form the proper trap energy level via doping microelement, thereby achieve the aim that enhance luminescent brightness and prolong afterglow time [5][6][7]. At the same time, the effect of flux on synthetic techniques and luminescent properties has become one of the hotspot in the aluminate luminescent materials activated by rare earth [8][9][10][11]. Chen et al [12] studied the effect of B 2 O 3 on the properties of SrAl 2 O 4 :Eu 2+ , Dy 3+ prepared by sol-gel method.…”

Enhanced red emission in LiAl5O8:Fe3+ phosphor by B3+ doping

“…replacing Al 3+ sites can decrease the symmetry of the luminescence center [10][11][12]. Thus boron doping into LiAl 5 O 8 :Fe 3+ phosphor is worth considering.…”