• • Achieved full-color afterglow (blue, green, orange, red, white) with ultralong lifetimes up to 2.42 s, enabling next-generation wearable displays and anti-counterfeiting.
• • Dual-mode afterglow-assisted FRET efficiency reaches 99%, with acceptor lifetime up to 1.55 s, demonstrating near-unity exciton transfer.
• • Polymer-based films exhibit water/thermal stimulus responsiveness and recyclability due to abundant hydrogen-bonding interactions, addressing practical durability and sustainability.
• • Demonstrated applications in multicolor screen-printing and high-level information encryption, validating industrial scalability for anti-counterfeiting technologies.