Effect of the glass melting condition on the processing of phosphate-based glass–ceramics with persistent luminescence properties

Abstract In this paper, we discuss the impact of the temperature and the duration of the melting on the persistent luminescence properties of phosphate glasses within the P 2 O 5 –Na 2 O–CaO and P 2 O 5 –Na 2 O–SrO systems prepared using a standard melting process in normal atmosphere by adding Sr 4 Al 14 O 25 :Eu 2+ ,Dy 3+ microparticles in the glass batch before melting. Glasses with persistent luminescence properties can be successfully prepared if the melting conditions are carefully controlled.