Experimental evidence for exciton scaling effects in self-assembled molecular wires

P. G. Lagoudakis, M. M. De Souza, F. Schindler, J. M. Lupton, J. Feldmann, J. Wenus, D. G. Lidzey

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26 Citations (Scopus)

Abstract

The evidence of lateral quantum confinement effects in one-dimensional self-assembled molecular J-aggregate wires of cyanine dyes was investigated. The resonant Rayleigh scattering from self-assembled one-dimensional molecular J-aggregate wires show a distinct dependence of the exciton energy on the width of lateral extension. It was observed that the strong in-line dipole coupling leads to a delocalization of the exciton wave function over several molecular units. The polarization dependent measurements of resonantly scattered light from the wires show that the exciton dipole moment was oriented perpendicular to the long axis.

Original languageEnglish
Article number257401
JournalPhysical Review Letters
Volume93
Issue number25
DOIs
Publication statusPublished - 17 Dec 2004
Externally publishedYes

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