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

Experimental evidence for exciton scaling effects in self-assembled molecular wires
Experimental evidence for exciton scaling effects in self-assembled molecular wires
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.
0031-9007
257401-[4pp]
Lagoudakis, P.G.
ea50c228-f006-4edf-8459-60015d961bbf
de Souza, M.M.
5e1d9d67-5af2-4de5-8161-8177d57955be
Schindler, F.
25829a84-964f-4801-94ef-674f34eacf89
Lupton, J.M.
48290c8f-dc29-47f3-9045-2281590587e9
Feldmann, J.
98d048f6-c77d-47b1-827c-256b8f04ee70
Wenus, J.
a0805a94-9642-442b-810a-adead6ac610d
Lidzey, D.G.
5d7d3f80-7bec-4d49-ac6c-8746d604f672
Lagoudakis, P.G.
ea50c228-f006-4edf-8459-60015d961bbf
de Souza, M.M.
5e1d9d67-5af2-4de5-8161-8177d57955be
Schindler, F.
25829a84-964f-4801-94ef-674f34eacf89
Lupton, J.M.
48290c8f-dc29-47f3-9045-2281590587e9
Feldmann, J.
98d048f6-c77d-47b1-827c-256b8f04ee70
Wenus, J.
a0805a94-9642-442b-810a-adead6ac610d
Lidzey, D.G.
5d7d3f80-7bec-4d49-ac6c-8746d604f672

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).

Record type: Article

Abstract

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

Identifiers

Local EPrints ID: 19269
URI: http://eprints.soton.ac.uk/id/eprint/19269
ISSN: 0031-9007
PURE UUID: c19ce5e9-a6bb-4a6c-a758-a8f5ea66435a

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Date deposited: 30 Jan 2006
Last modified: 19 Jul 2019 19:14

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