Colloidal photonic crystals using colloidal nanoparticles and method for preparation thereof

A technology of colloidal photonic crystals and nanoparticles, applied in nanotechnology, colloid chemistry, colloid chemistry, etc., can solve problems such as difficult commercial applications
CN101060922AActive Publication Date: 2007-10-24LG CHEM LTD
0 Cites 22 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
LG CHEM LTD
Publication Date
2007-10-24

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

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.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to colloidal photonic crystals using colloidal nanoparticles and a preparation method thereof, and more particularly, the present invention relates to colloidal photonic crystals using colloidal nanoparticles and a preparation method thereof, wherein by adding a viscoelastic material, even in a dry colloidal solution Inhomogeneous volume shrinkage occurs in the dispersion medium, and uniform volume shrinkage also occurs due to the elasticity of the viscoelastic material. Therefore, 2 or 3-dimensional large-sized colloidal photonic crystals with no defects on their surface and no particle size limitation can be prepared in a short period of time. Background technique

[0002] A photonic crystal is a crystal having a regular structure with a lattice pitch of tens of nanometers to several micrometers, and is capable of adjusting optical properties in the ultraviolet, visible and infrared ranges. Such photonic crystals exist ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More