title: Interface structures of gold nanoparticles on TiO2 (110).
abstract: Scanning transmission electron microscopy and density functional theory are used to characterize atomic structures of nanoscale heterointerfaces between gold nanoparticles and a TiO2 (110) surface. It is found that when the gold nanoparticle size is smaller than a few nanometers, gold atoms preferentially attach to specific sites on the TiO2 surface and thus form an epitaxial and coherent heterointerface. Conversely, as the gold size becomes larger, the gold-TiO2 interface loses lattice coherency in order to accommodate the large lattice mismatch between the two dissimilar crystals.
authors.affiliation: Institute of Engineering Innovation, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan. shibata@sigma.t.u-tokyo.ac.jp
authors.forename: N
authors.initials: N
authors.lastname: Shibata
authors.forename: A
authors.initials: A
authors.lastname: Goto
authors.forename: K
authors.initials: K
authors.lastname: Matsunaga
authors.forename: T
authors.initials: T
authors.lastname: Mizoguchi
authors.forename: S D
authors.initials: SD
authors.lastname: Findlay
authors.forename: T
authors.initials: T
authors.lastname: Yamamoto
authors.forename: Y
authors.initials: Y
authors.lastname: Ikuhara