Colloidal photonic crystals using colloidal nanoparticles and method for preparation thereof
AssigneeLG Chem, Ltd.
InventorsYoung-jun Hong, Sang-hyuk Im
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Abstract
The present invention relates to colloidal photonic crystals using colloidal nanoparticles and a method for the preparation thereof, wherein by adding a viscoelastic material into a solution containing the colloidal nanoparticles when preparing the colloidal photonic crystals, a uniform volume contraction occurs due to the elasticity of the viscoelastic material even when a nonuniform volume contraction occurs while drying a dispersion medium in the colloidal solution. Thus, it is possible to prepare 2 or 3 dimensional colloidal photonic crystals of large scale with no defects in less time.
Claims29
Method of preparing colloidal photonic crystals using colloidal nanoparticles comprising a step of adding a viscoelastic material into a solution containing the colloidal nanoparticles.
Colloidal photonic crystals comprising self-assembled nanoparticles and a viscoelastic material settling the nanoparticles with a predetermined elasticity.
Dependencies are inferred from the claim text.