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Preparation and Application of Photonic Crystal Paints with Tunable Structural Colors
Author(s) -
Wu Yu,
Liu Guojin,
Li Hui,
Han Penshuai,
Cheng Jinyu,
Zhou Lan
Publication year - 2020
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201900539
Subject(s) - structural coloration , materials science , photonic crystal , iridescence , microsphere , methacrylate , acrylate , methyl methacrylate , composite material , optics , polymer , optoelectronics , chemical engineering , copolymer , physics , engineering
A simple and fast paint drawing method is applied in fabricating patterned photonic crystals (PCs) on white paper substrates. The paints with structural colors are simply fabricated using monodispersed black disperse dye@poly(styrene–butyl acrylate–methacrylate) (P(St–BA–MAA)) microspheres via a rapid centrifugal treatment. Specifically, the centrifugal speeds and centrifugal times of dye@P(St–BA–MAA) microspheres are systematically optimized, and the apparent colors of prepared paints are simply characterized, and then the paints are used to fabricate photonic crystal patterns (PCPs) by paintbrushes. It is confirmed that the suitable paints can be prepared at 8000 rpm centrifugal speed and 30 min centrifugal time. The prepared paints display bright and iridescent structural colors, which indicates that the dye@P(St–BA–MAA) microspheres of paints undergo a certain degree of self‐assembly during the driving of centrifugal forces. The prepared paints fabricate 3D PCPs with bright and iridescent structural colors within 10–20 s. Moreover, when the diameter of microspheres decreases or the viewing angle increases, the resultant structural colors produce a blue shift according to Bragg's diffraction law. It is believed that the paints for fabricating PCPs with tunable structural colors have wide applications in painting fields.