Multimodal, Multiband, and Multiple Anticounterfeiting Devices with Angle-Dependent Structural Color Highly Sensitive to Temperature.

ABSTRACT: Conventional anticounterfeiting devices rely on high-resolution equipment and only provide limited encrypted information, which greatly constrain the efficacy of ever-increasing high-end counterfeiting functionalities. In this study, we propose a simple solution method to fabricate an arbitration anticounterfeiting device with multimodal, multiband, and multiple optical properties, where a thermoresponsive magnetic photonic crystal hydrogel film is in situ chemically anchored onto a modified glass and sealed with a gasket and single-sided indium-tin oxide glass. The resulting device exhibits distinguishable optical responses in terms of reflection, transmission, and emission modes, covering a wide range of wavelengths from visible to near-infrared and long-wave infrared. Notably, the wide-

SUBMITTER: Li G 

PROVIDER: S-EPMC12550300 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature