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-

The new long afterglow photoglow material with aluminate as the main ingredient has an afterglow time more than ten times higher than the traditional ZnS glow material after a short period of light exposure, and has excellent light resistance and durability, is non-toxic and harmless, and does not h