Investigation of persistent luminescence property of Bi 3+ , Dy 3+ co-doped CdSiO 3 phosphor

Abstract The CdSiO 3 :Bi 3+ , Dy 3+ phosphors were synthesized by high temperature solid state reaction and their persistent luminescence properties were investigated under ultraviolet light excitation at 233 and 274 nm. The results showed that the CdSiO 3 :Bi 3+ , Dy 3+ phosphors presented 360 nm ultraviolet persistent luminescence from Bi 3+ and typical line emissions from Dy 3+ . By Bi 3+ or Dy 3+ doping, the persistent luminescence property of CdSiO 3 :Bi 3+ , Dy 3+ phosphor exhibited different emission behavior. The increasing of persistent duration from Dy 3+ was observed by the Bi 3+ doping. However, the co-doping of Dy 3+ results in the decreasing of ultraviolet persistent duration from Bi 3+ . This phosphor may have potential applications in photo-catalysis systems and other various display fields.