抄録
A blue afterglow was observed in the bazirite-type BaZrSi_3O_9 synthesized by a solid-state reaction for the first time. The synthetic bazirite phase showed a clear blue long-lasting luminescence at room temperature after the exposure of UV light, in spite of the free from any lanthanide-doping. It was proposed that the afterglow in the BaZrSi_3O_9 phase was originated from the occupation of Ti^<4+> as an impurity in the distorted octahedral site.
