Improved Plasmonic Properties of Highly Conductive Polymers Confined in Nanopores
발표자
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초록
내용
Conductive polymer such as poly(3,4-ethylenedioxythiophene:sulfate) (PEDOT:Sulf) can provide high electrical conductivity and metallic behavior. Due to its metal-like behavior, PEDOT:Sulf nanodisks can function as plasmonic metasurface only with organic materials and act tunable by redox reactions. However, it is still necessary to improve the plasmonic properties by increasing the electrical conductivity in the way as chain alignment and low defects. Here, we propose high density array of PEDOT:Sulf nanopillars based on anodized aluminum oxide (AAO) template for enhanced electrical conductivity and plasmonic properties. PEDOT:Sulf nanopillars have improved electrical conductivity by effectively aligning chains in nanopore, which improves the plasmonic properties of PEDOT:Sulf. Also, we expect to show complex and anisotropic permittivity by chain alignment along vertical direction, it can be applied to hyperbolic metamaterials.