Patent ID: 9593429
Date: 2017-03-14
CPC Classifications: C09D,C25B,C25D,G02B

Claim:
1. A method of fabricating a photonic crystal, comprising: providing a photonic crystal solution in which a plurality of colloidal particles are dispersed, the plurality of colloidal particles being electrically charged; mixing a photopolymerizable monomer mixture in the photonic crystal solution to form a photopolymerizable monomer-crystal mixture; gradually varying an intensity of an electric field applied in a vertical direction between a top surface and a bottom surface of the photopolymerizable monomer-crystal mixture to electrically control intervals between the plurality of colloidal particles such that the intervals in the vertical direction between the plurality of colloidal particles gradually vary according to a height of the photonic crystal solution; and irradiating ultraviolet light to the photopolymerizable monomer-crystal mixture to photopolymerize the photopolymerizable monomer mixture so as to form the photonic crystal.