title: Probing dynamic generation of hot-spots in self-assembled chains of gold nanorods by surface-enhanced Raman scattering.
abstract: Further progress in the applications of self-assembled nanostructures critically depends on developing a fundamental understanding of the relation between the properties of nanoparticle ensembles and their time-dependent structural characteristics. Following dynamic generation of hot-spots in the self-assembled chains of gold nanorods, we established a direct correlation between ensemble-averaged surface-enhanced Raman scattering and extinction properties of the chains. Experimental results were supported with comprehensive finite-difference time-domain simulations. The established relationship between the structure of nanorod ensembles and their optical properties provides the basis for creating dynamic, solution-based, plasmonic platforms that can be utilized in applications ranging from sensing to nanoelectronics.
authors.affiliation: Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada.
authors.forename: Anna
authors.initials: A
authors.lastname: Lee
authors.forename: Gustavo F S
authors.initials: GF
authors.lastname: Andrade
authors.forename: Aftab
authors.initials: A
authors.lastname: Ahmed
authors.forename: Michele L
authors.initials: ML
authors.lastname: Souza
authors.forename: Neil
authors.initials: N
authors.lastname: Coombs
authors.forename: Ethan
authors.initials: E
authors.lastname: Tumarkin
authors.forename: Kun
authors.initials: K
authors.lastname: Liu
authors.forename: Reuven
authors.initials: R
authors.lastname: Gordon
authors.forename: Alexandre G
authors.initials: AG
authors.lastname: Brolo
authors.forename: Eugenia
authors.initials: E
authors.lastname: Kumacheva