Dynamic multimodal information encryption combining programmable structural coloration and switchable circularly polarized luminescence.

ABSTRACT: Multimodal optical-materials are highly desirable due to their advantages in enhancing information security, though independent modulation is challenging, especially accurately controlling the orthogonal relationship between the structural coloration (SC) and fluorescence (FL) pattern. Herein, we report a strategy which combines programmable structural coloration and switchable circularly polarized luminescence (CPL) for multimodal information encryption. Using photomask with aligned grating, programmable periodic patterns are fabricated on a polydiacetylene (PDA) gel film, which produces image in tunable structural colors. Introducing a chiral fluorescence layer containing perovskite nanocrystals and twisted-stacking Ag nanowires (NWs) bilayers, which provides stimuli-responsive FL and CP

SUBMITTER: Feng Z 

PROVIDER: S-EPMC11885572 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature