Preparation of Large-scale and Angle-independent Structural Colors by Addi-tive of Black Polypyrrole
Vividly structurally colored pigments with a non—iridescent character produced by APSs(amorphous photonic structures)have attracted great attention recently.However,these artificial APSs usually have a low color visibility.Here,a new strategy based on a drop—coating method for creating large area 3D APSs by using polypyrrole(PPy)as an additive is proposed.The bright and non—iridescent structural colors were obtained by self—assembling the mixture of monodisperse SiO2 spheres and PPy particles.The color hues of the APSs are strongly related to the diameter of the SiO2 spheres while their spectral purity can be controlled by the proportion of the SiO2 spheres to the PPy particles.Surprisingly,these structurally colored films applied on ceramic substrate have the presence of a metallic texture under direct sunlight.To the best of our knowledge,such bright and non—iridescent structur-al colors obtained by simple but effective coating method may facilitate the development of special functional industries for various applications.
Polypyrrole black particles Amorphous photonic structures Structural colors Drop-coating method Metallic texture
Cui Yun Wang Fen Zhu Jianfeng Wu Wenling Qin Yi Zhang Xin
School of Materials Science and Engineering,Shaanxi University of Science and Technology,Xi'an,710021
国内会议
长沙
英文
2-14
2018-10-15（万方平台首次上网日期，不代表论文的发表时间）