A multifunctional cardanol-based room-temperature phosphorescent material with multi-stimulus-responsive shape-memory for anti-counterfeiting and encryption

O, HCl and NaOH for four weeks, thanks to its 3D covalent network structure providing exceptional water and chemical resistance. Furthermore, its UV-responsive properties enable the cardanol-based RTP to function as a rewritable film for light printing. Leveraging the shape memory and adjustable phosphorescence performance, we developed a promising programmable 2D/3D anti-counterfeiting security system based on this cardanol-based RTP. This system combines phosphorescence and shape memory behaviors, advancing the development of multi-stimulus-responsive RTP systems based on cardanol, and offering promising applications in secure information storage and anti-counterfeiting technologies.