“…Within the supply chain, the huge economic losses caused by counterfeiting and fraudulent activities not only damage the reputation of enterprises but also pose a major threat to the safety of consumers. Therefore, in the field of production, manufacturing, and sales, the application of the anticounterfeiting technology is becoming more and more obvious. − Common anticounterfeiting technologies include laser-based authentication, QR code verification, nanotechnology-based security features, chemical anticounterfeiting measures, fluorescent anticounterfeiting, and so on. Among these, fluorescent anticounterfeiting materials are widely explored because of their remarkable visibility, multilayer protection, and user-friendliness, which provide powerful anticounterfeiting measures for commodities and documents. − However, most fluorescent anticounterfeiting materials are based on their static features or signals, which greatly limits the encryption of advanced information. , In view of this, materials that can be switched to multiple states under external stimuli as needed would be promising candidates.…”