Three-Dimensionally-Arranged Shape-Controlled Metal Nanoparticles on Mesoporous Oxide Templates and the Optical and Catalytic Properties

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Deposition of metal nanoparticles on oxide templates with ordered mesopores was investigated. Gold and Silver nanoparticles which can resonate with visible/near infrared light were deposited on the templates. The possibility of application of unidirectionally aligned anisotropicgold nanoparticlesto a wavelength-selective ultra-thin polarizer was unveiled. A photocatalyst that works with light of various wavelengths was successfully prepared by adding titania to the template.