title: 3D morphology of Au and Au@Ag nanobipyramids.
abstract: The morphologies of Au and Au@Ag nanobipyramids were investigated using electron tomography. The 3D reconstruction reveals that the Au bipyramids have an irregular six-fold twinning structure with highly stepped dominant {151} facets. These short steps/edges stabilized via surface adsorbed CTAB favor the growth of silver on the lateral facets leading to strong blue shifts in longitudinal plasmon surface resonance.
authors.affiliation: CNRS, Université de Bordeaux, ICMCB, 87 av. Dr. A. Schweitzer, Pessac, 33608, France.
authors.forename: Julien
authors.initials: J
authors.lastname: Burgin
authors.forename: Ileana
authors.initials: I
authors.lastname: Florea
authors.forename: Jérôme
authors.initials: J
authors.lastname: Majimel
authors.forename: Adam
authors.initials: A
authors.lastname: Dobri
authors.forename: Ovidiu
authors.initials: O
authors.lastname: Ersen
authors.forename: Mona
authors.initials: M
authors.lastname: Tréguer-Delapierre