Topologically Controlled Growth of Magnetic-Metal-Functionalized Semiconductor Oxide Nanorods

• DOI: 10.1021/nl070550w
• Publication Date: 2007-04-20T11:04:35Z
• Authors: Marianna Casavola; Vincenzo Grillo; Elvio Carlino; Cinzia Giannini; Fabia Gozzo; Enrique Fernandez...; Miguel Angel Garcia; Liberato Manna; Roberto Cingolani; Pantaleo Davide C...
• Keywords: Nanorod; Facet (psychology)

Colloidal semiconductor-magnetic hybrid nanocrystals with topologically controlled composition are fabricated by heterogeneous nucleation of spherical epsilon-Co domains onto anatase TiO2 nanorods. The latter can be selectively decorated at either their tips or multiple locations along longitudinal sidewalls, forming lattice-matched heterointerfaces regardless the metal deposition sites. possibility switching between heterostructure growth modes arises from facet-dependent chemical reactivity oxide seeds, which is governed mainly selective adhesion surfactants rather than small differences in misfit-induced interfacial strain relevant junction points.