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

Lagoudakis, P.G., de Souza, M.M., Schindler, F., Lupton, J.M., Feldmann, J., Wenus, J. and Lidzey, D.G. (2004) Experimental evidence for exciton scaling effects in self-assembled molecular wires Physical Review Letters, 93, (25), 257401-[4pp]. (doi:10.1103/PhysRevLett.93.257401).

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Resonant Rayleigh scattering from self-assembled one-dimensional molecular J-aggregate wires reveals a distinct dependence of the exciton energy on the width of lateral extension. For the J aggregates used in this study, strong in-line dipole coupling leads to a delocalization of the exciton wave function over several molecular units. Polarization dependent measurements of resonantly scattered light from the wires show that the exciton dipole moment is oriented perpendicular to the long axis. The experimental observations can be described by applying a quantization condition to the center of mass motion of the J-band exciton in the wires.

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Published date: 2004


Local EPrints ID: 19269
ISSN: 0031-9007
PURE UUID: c19ce5e9-a6bb-4a6c-a758-a8f5ea66435a

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Date deposited: 30 Jan 2006
Last modified: 17 Jul 2017 16:32

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Author: P.G. Lagoudakis
Author: M.M. de Souza
Author: F. Schindler
Author: J.M. Lupton
Author: J. Feldmann
Author: J. Wenus
Author: D.G. Lidzey

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