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

Electroluminescent materialsElectroluminescence is the direct conversion of electrical energy into light energy of a solid luminescence phenomenon.In 1923, Loservi in the study of silicon carbide detector, found in the silicon carbide crystal applied a positive bias, will be accompanied by the pheno