title: From nanodot to nanowire: hybrid au/titania nanoarrays by block copolymer templates.
abstract: A simple scheme to fabricate 2-D arrays of Au/titania hybrid nanopatterns is presented, using polystyrene-block-poly(ethylene oxide) diblock copolymer (PS-b-PEO) as templates coupled with sol-gel chemistry. Both the functionalized Au nanoparticles (NPs) and titania precursors are selectively incorporated into the PEO domain. A series of morphologies ranging from nanodot to nanowire arrays is formed and the mechanism of morphological evolution is discussed. Such hybrid films exhibit characteristic localized surface plasmon resonance bands originating from the coupling between neighboring Au NPs spatially located in a controlled manner.
authors.affiliation: The Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Ministry of Education, Fudan University, Shanghai 200433, China.
authors.forename: Juan
authors.initials: J
authors.lastname: Peng
authors.forename: Chun
authors.initials: C
authors.lastname: Mao
authors.forename: Jinheung
authors.initials: J
authors.lastname: Kim
authors.forename: Dong Ha
authors.initials: DH
authors.lastname: Kim