Preparation of iridescent colloidal crystal coatings with variable structural colors.
Iridescent colloidal crystal coatings with variable structural colors were fabricated by incorporating carbon black nanoparticles (CB-NPs) into the voids of polystyrene (PS) colloidal crystals. The structural color of the colloid crystal coatings was not only greatly enhanced after the composition but also varied with observation angles. By changing the diameter of monodisperse PS colloids in the composites, colloidal crystal coatings with three primary colors for additive or subtractive combination were obtained. After incorporation of the PS/CB-NPs hybrid coatings into polydimethylsiloxane (PDMS) matrix, manmade opal jewelry with variable iridescent colors was made facilely.
College of Chemical and Environmental Engineering, Qingdao University, Qingdao 266071, China. hailincong@yahoo.com
Hailin
H
Cong
Bing
B
Yu
Shaopeng
S
Wang
Limin
L
Qi
Jilei
J
Wang
Yurong
Y
Ma
D003102:Colloids / Q000737:chemistry*; D003116:Color; D017076:Computer-Aided Design; D003460:Crystallization / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure*; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation
D003102:Colloids; D037742:Nanotubes, Carbon