“…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. These fluorescent patterns show dynamic color change with time after being exposed to external stimuli and show a vivid display of encrypted information, so they have a higher security level because of the increase in anticounterfeiting dimension. − …”