Thermo-Responsive Tri-State Photonic Crystals.

ABSTRACT: Counterfeiting remains a pervasive global challenge, persistently undermining legitimate enterprises. Despite advancements, current anti-counterfeiting materials and technologies fall short in addressing the escalating sophistication of counterfeit activities. A significant hurdle in this domain is the difficulty in achieving multi-mode dynamic anti-counterfeiting materials. Herein, thermo-responsive tri-state photonic crystals is presented that enable thermochromism of structural color, fluorescence (FL), and organic afterglow. The fabrication of this system integrates the incorporation of organic phosphors into polymeric colloids via solid-phase extraction and embeds thermochromic microcapsules into colloidal crystals to regulate incoherent scattering and far-field light absorption. In t

SUBMITTER: Zheng Y 

PROVIDER: S-EPMC12407271 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature