ArticleResearch (Washington, D.C.)2025
Multimodal, Multiband, and Multiple Anticounterfeiting Devices with Angle-Dependent Structural Color Highly Sensitive to Temperature.
Article in Research (Washington, D.C.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
7 authors.
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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-angle dependent structural color of the device may change in the full visible spectrum (red to blue) with temperature, and the sensitivity is up to 11.5 nm/0.1 °C with stable repeatability. This study presents a promising avenue for the design and development of high-end anticounterfeiting devices for advanced applications.
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Registered trials
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