Patent ID: 8007862
Filing Date: 2011-08-30
Classification: B82Y,C09K,C23C,G02B

Abstract:
1. A method of preparing a nanowire grid polarizer, the method comprising: mixing a poly(alkylene oxide) triblock copolymer surfactant with a hydrophilic head region and a hydrophobic tail region and a silica precursor to prepare a mesoporous film composition; coating the mesoporous film composition on a substrate; aging the coated film to form a silica template composite; removing the surfactant inside the silica template composite to prepare a mesoporous material having channels, the channels being laterally aligned to have a hexagonal array; and filling the channels of the mesoporous material with metal, thereby producing the nanowire grid polarizer including a plurality of nanowire array layers, wherein each of the nanowire array layers includes a regular array of a nanowire-shell structure consisting of a nanowire of the metal as a core and a silica shell in which the nanowire is separated from another nanowire by the silica shell, thereby when an incident light including a first polarized light and a second polarized light is irradiated onto the nanowire grid polarizer, the nanowire grid polarizer transmits the first polarized light but reflects the second polarized light using the metallic nanowire as a lattice.