New phenomena of photo-luminescence and persistent luminescence of a Eu,Tb codoped CaBaPO phosphor under high hydrostatic pressure

In this study, we present a photo-luminescence (PL) and persistent luminescence (PersL) investigation of Ca 6 BaP 4 O 17 :Eu 2+ ,Tb 3+ (CBPO:Eu,Tb) at high hydrostatic pressure in the range of 0-11.04 GPa. More importantly, there is a significant increase of PL intensity and extension of PersL duration time at a pressure point of ∼0.15 GPa. The possibility of regulating the photo luminescence and persistent luminescence performances of Ca 6 BaP 4 O 17 :Eu 2+ ,Tb 3+ under high hydrostatic pressure.