title: Stable spectral dip formation and multicolour changes of plasmonic gold nanoparticles on TiO2.
abstract: Spectral dip formation at arbitrary wavelengths and the corresponding multicolour changes were achieved by using plasmonic Au nanoparticles on TiO(2), based on plasmon-induced charge separation and a coordination effect of iodide ions. The dips were stable in air under white light, in marked contrast to the case of conventional Ag nanoparticles.
authors.affiliation: Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan.
authors.forename: Yohei
authors.initials: Y
authors.lastname: Konishi
authors.forename: Ichiro
authors.initials: I
authors.lastname: Tanabe
authors.forename: Tetsu
authors.initials: T
authors.lastname: Tatsuma