title: Growth behaviour and plasmon resonance properties of photocatalytically deposited Cu nanoparticles.
abstract: Cu nanoparticles (NPs) were deposited on UV-irradiated TiO(2) in an aqueous solution containing Cu(CH(3)COO)(2) and ethanol by a photocatalytic reaction. Cu NPs on TiO(2) exhibit an extinction (= absorption + scattering + reflection) peak due to localized surface plasmon resonance at around 600 nm initially. The density and size as well as the extinction of Cu NPs increase during the deposition, accompanied by a slight redshift of the peak. Eventually, TiO(2) is mostly covered with coalesced Cu NPs that exhibit a spectrum less characteristic of Cu NPs, but more characteristic of a Cu layer.
authors.affiliation: Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan.
authors.forename: Emiko
authors.initials: E
authors.lastname: Kazuma
authors.forename: Taishi
authors.initials: T
authors.lastname: Yamaguchi
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Sakai
authors.forename: Tetsu
authors.initials: T
authors.lastname: Tatsuma
mesh_terms: D002384:Catalysis; D003300:Copper / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D012996:Solutions / Q000737:chemistry; D020349:Surface Plasmon Resonance; D014025:Titanium / Q000737:chemistry; D014466:Ultraviolet Rays
chemical_list: D012996:Solutions; C009495:titanium dioxide; D003300:Copper; D014025:Titanium