Method for preparing force response photonic crystal material on basis of nano molding technique

Abstract

The invention discloses a method for preparing a force response photonic crystal material on the basis of a nano molding technique. The method comprises the following steps: etching a main template according to pre-designed photonic crystal structure parameters, preparing an elastic polymer soft template with inverse nano-grade patterns, and by taking the soft template as a secondary template, 'copying' the patterns on the main template into a high -elasticity gel matrix layer in a 'high-fidelity 'manner in a mode of three-step pattern transfer so as to fix the position of crystal lattice of photonic crystal; filling the crystal lattice with a viscous polymer so as to obtain a single-layer high-elasticity gel-viscous polymer composite layer with a photonic crystal structure, and implementing a layer-by -layer embossing method,thereby obtaining the force response photonic crystal material. Compared with the prior art,the method disclosed by the invention has the characteristics that the process is simple, the procedure time is short, process parameters are easy to control, the templates can be repeatedly used, and a product is high in precision grade, stable and reliable in quality and relatively low in cost, and the like.

Description

technical field [0001] The invention relates to a method for preparing a photonic crystal material, in particular to a method for preparing a force-responsive photonic crystal material based on nano-molding technology. Background technique [0002] The preparation of the force-responsive photonic crystal material is completed by filling the highly elastic gel material with excellent mechanical properties in the nanoscale photonic crystal lattice gap. Through mechanical stretching or compression, the highly elastic polymeric network structure will increase or decrease the lattice spacing of photonic crystals, resulting in changes in diffraction wavelength and structural color, and realize the transformation of physical deformation into optical performance changes. Sensing function. Studies have shown that the multilayer structure composed of highly elastic gel and viscoelastic polymer with nanoscale photonic crystal structure has good mechanical response performance. This k...

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to prepare nanoscale photonic crystals by laser holographic interferometry

[0007] In a nutshell, the existing photonic crystal material preparation methods generally have the following disadvantages or deficiencies: complex process, long preparation cycle, and high cost; and the prepared photonic crystal has limited precision, few types of patterns, and controllable structure. poor sex

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