Dual-responsive PU inverse photonic crystal film with high flexibility for anti-counterfeiting
Xin Zhang, Ziyuan Zhang, Fuchang Yu
Abstract
PU inverse photonic crystal film with reversible switching between collapse and ordered macroporous structure character in dry and ethanol soaking environment, shows varied color changes in ethanol of different concentrations under stepwise recovery.
Topics & Concepts
Materials sciencePhotonic crystalFlexibility (engineering)Dual (grammatical number)InverseEthanolPhotonicsCrystal (programming language)Structural colorationOptoelectronicsNanotechnologyChemical engineeringOrganic chemistryChemistryComputer scienceArtStatisticsLiteratureProgramming languageGeometryEngineeringMathematicsPhotonic Crystals and ApplicationsLiquid Crystal Research AdvancementsPhotochromic and Fluorescence Chemistry