title: Enhancement of dye-sensitized photocurrents by gold nanoparticles: effects of dye-particle spacing.
abstract: Photocurrents of a ruthenium dye-TiO(2) system are enhanced by gold nanoparticles (100 or 40 nm diameter) embedded in TiO(2). As dye-particle spacing decreases to 10 nm, enhancement factor and intensity of localized electric fields at the TiO(2) surface increase. A further decrease in the spacing suppresses the enhancement.
authors.affiliation: Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan.
authors.forename: Tokuhisa
authors.initials: T
authors.lastname: Kawawaki
authors.forename: Yukina
authors.initials: Y
authors.lastname: Takahashi
authors.forename: Tetsu
authors.initials: T
authors.lastname: Tatsuma
mesh_terms: D004396:Coloring Agents / Q000737:chemistry*; D004566:Electrodes; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D012428:Ruthenium / Q000737:chemistry; D012993:Solar Energy; D017971:Tin Compounds / Q000737:chemistry; D014025:Titanium / Q000737:chemistry
chemical_list: D004396:Coloring Agents; D017971:Tin Compounds; C009495:titanium dioxide; C109984:indium tin oxide; D006046:Gold; D012428:Ruthenium; D014025:Titanium