title: Nanoscale heterostructures with molecular-scale single-crystal metal wires.
abstract: Creating nanoscale heterostructures with molecular-scale (<2 nm) metal wires is critical for many applications and remains a challenge. Here, we report the first time synthesis of nanoscale heterostructures with single-crystal molecular-scale Au nanowires attached to different nanostructure substrates. Our method involves the formation of Au nanoparticle seeds by the reduction of rocksalt AuCl nanocubes heterogeneously nucleated on the substrates and subsequent nanowire growth by oriented attachment of Au nanoparticles from the solution phase. Nanoscale heterostructures fabricated by such site-specific nucleation and growth are attractive for many applications including nanoelectronic device wiring, catalysis, and sensing.
authors.affiliation: Materials Research Centre, Indian Institute of Science, Bangalore 560 012, India.
authors.forename: Paromita
authors.initials: P
authors.lastname: Kundu
authors.forename: Aditi
authors.initials: A
authors.lastname: Halder
authors.forename: B
authors.initials: B
authors.lastname: Viswanath
authors.forename: Dipan
authors.initials: D
authors.lastname: Kundu
authors.forename: Ganpati
authors.initials: G
authors.lastname: Ramanath
authors.forename: N
authors.initials: N
authors.lastname: Ravishankar