| 초록 |
Materials with a spatial periodic dielectric constant in nanometer scale are called photonic crystals or photonic band gap materials and have elicited much interest. The main thrust of the intensive investigations stems from their wide variety of application areas ranging from microwave to optical devices. Even with modern nanolithography, fabrication of nanostructured materials that are patterned and highly ordered in three dimensions remains a challenge. Self-assembly of colloids and emulsions with macrocrystalline structure has been explored as an alternative route to such intricate materials, which with long range periodicity at visible wavelength scales may have a photonic band gap. [3] Recently, inverted structures of self-assembly have been prepared by infiltration materials into self-organized templates and then removing the template (so-called templating method). Here, we present the simple way to produce the colloidal crystals of polystyrene beads that produced by emulsion polymerization and inverted structures from polymeric colloidal crystals by colloidal templating. In addition, optical properties of those self-assembly are predicted by numerical simulations and reported
|
