Journal
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
Volume 53, Issue 11, Pages 3088-3093Publisher
SCIENCE PRESS
DOI: 10.1007/s11431-010-4110-5
Keywords
polystyrene spheres; colloidal crystals; self-assembly; three-dimensional ordered; FDTD method
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Monodisperse polystyrene (PS) colloidal spheres were successfully prepared through emulsifier-free emulsion polymerization by controlling the polymerization reaction time, ionic strength of the system, concentration of the ionic copolymer (sodium p-styrenesulfonate) and other factors. The PS colloidal spheres were assembled into colloidal crystals whose structures were mainly face-centered cubic (fcc) close-packed. Then FDTD method was used to calculate the color-rendering characteristics of the colloidal crystals surface. The calculated results were consistent with the experimental results.
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