Long Persistence Ceramic Phosphors: In this virtual laboratory, we seek to understand the mechanism of extended persistence in long afterglow ceramic phosphor powders. Through using ceramic powder processing routes, we synthesize luminescence converters with structural characteristics that enable the application of spectroscopic and advanced transmission electron microscopy techniques to elucidate the mechanisms of extended afterglow. With this knowledge, we are developing technological applications exploiting these optical properties, such as for earthquake, mines and road safety.