Long afterglow luminescence is a phenomenon in which a substance continues to emit light even after the excitation light has stopped. Long afterglow luminescent materials do not contain toxic heavy elements and can be excited prior to detection and imaging, enabling biosensing and imaging under "no-

Long afterglow luminescent material is referred to as long afterglow material is a photoluminescent material. It is a class of material that absorbs energy and continues to emit light after excitation stops, and is a promising material for application.Long afterglow material is one of the earliest r

People use glow powder in practical life for a long time to make weak lighting source, which has special use in military sector.In the military sector, the material can be used in aviation instruments, clocks and watches, windows, various switch symbols on machines, door handles, etc. It can also be