Tailoring Disorder and Quality of Photonic Glass Templates for Structural Coloration by Particle Charge Interactions
Yen Häntsch, Guo Liang Shang, Bo Lei, Benedikt F. Winhard, Alexander Yu. Petrov, Manfred Eich, Elizabeth A. Holm, Gerold A. Schneider, Kaline P. Furlan
Abstract
via atomic layer deposition, and after removal of the PS spheres, surface-templated inverse photonic glasses were obtained. Different color impressions and optical properties were obtained depending on the heteroaggregation level and thus the quality of the resultant films. The best results regarding the stability of the films and suppression of coffee-ring formation are obtained with a 35 wt % positively charged over negatively charged particle mix, which yielded enhanced structural coloration associated with improved film quality, tailored by the heteroaggregation fabrication process.
Topics & Concepts
Materials scienceStructural colorationParticle (ecology)Scanning electron microscopePhotonicsParticle sizePolystyreneMicrostructureComposite materialSuspension (topology)Surface roughnessPhotonic crystalChemical engineeringNanotechnologyOptoelectronicsPolymerOceanographyPure mathematicsEngineeringGeologyMathematicsHomotopyPhotonic Crystals and Applications