Preparation and Anti-Counterfeiting Application of Zn2GeO4-CDs Composite Nanomaterials
Currently,the common anti-counterfeiting materials on the market are single,with limited forms of expression,and cannot meet the needs of new anti-counterfeiting functions.This article combines carbon dot materials with long afterglow materials through chemical bonding to develop composite nano anti-counterfeiting materials(Zn2 GeO4 CDs).Its luminescent properties were studied and applied to anti-counterfeiting inks.The results show that this composite material has the characteristics of multi-color luminescence,high luminescence efficiency,diverse expression forms,and mature synthesis technology.When different excitation lights are used,different colors of light will be emitted.The doping ratio of the material is different,and it will also emit different colors of light,which can effectively achieve anti-counterfeiting and multi-layer data protection.The application prospects are very broad.
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