Single Molecule Photobleaching Probes the Exciton Wavefunction in a Multichromophoric System

J. Hernando Campos; J.P. Hoogenboom; E.M.H.P. van Dijk; J.J. Garcia lopez; Mercedes Crego Calama; David Reinhoudt; N.F. van Hulst; M.F. Garcia Parajo

doi:10.1103/PhysRevLett.93.236404

Single Molecule Photobleaching Probes the Exciton Wavefunction in a Multichromophoric System

J. Hernando Campos, J.P. Hoogenboom, E.M.H.P. van Dijk, J.J. Garcia lopez, Mercedes Crego Calama, David Reinhoudt, N.F. van Hulst, M.F. Garcia Parajo

Optical Sciences

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Abstract

The exciton wave function of a trichromophoric system is investigated by means of single molecule spectroscopy at room temperature. Individual trimers exhibit superradiance and loss of vibronic structure in emission spectrum, features proving exciton delocalization. We identify two distinct photodegradation pathways for single trimers upon sequential photobleaching of the chromophores. The rate of each pathway is a measure for the contribution of the separate dyes to the collective excited state of the system, in this way probing the wave function of the delocalized exciton.

Original language	English
Pages (from-to)	236404-1-236404-4
Number of pages	4
Journal	Physical review letters
Volume	93
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.93.236404
Publication status	Published - 2004

Keywords

IR-49160
METIS-221238

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10.1103/PhysRevLett.93.236404

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abstract = "The exciton wave function of a trichromophoric system is investigated by means of single molecule spectroscopy at room temperature. Individual trimers exhibit superradiance and loss of vibronic structure in emission spectrum, features proving exciton delocalization. We identify two distinct photodegradation pathways for single trimers upon sequential photobleaching of the chromophores. The rate of each pathway is a measure for the contribution of the separate dyes to the collective excited state of the system, in this way probing the wave function of the delocalized exciton.",

keywords = "IR-49160, METIS-221238",

author = "{Hernando Campos}, J. and J.P. Hoogenboom and {van Dijk}, E.M.H.P. and {Garcia lopez}, J.J. and {Crego Calama}, Mercedes and David Reinhoudt and {van Hulst}, N.F. and {Garcia Parajo}, M.F.",

year = "2004",

doi = "10.1103/PhysRevLett.93.236404",

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T1 - Single Molecule Photobleaching Probes the Exciton Wavefunction in a Multichromophoric System

AU - Hernando Campos, J.

AU - Hoogenboom, J.P.

AU - van Dijk, E.M.H.P.

AU - Garcia lopez, J.J.

AU - Crego Calama, Mercedes

AU - Reinhoudt, David

AU - van Hulst, N.F.

AU - Garcia Parajo, M.F.

PY - 2004

Y1 - 2004

N2 - The exciton wave function of a trichromophoric system is investigated by means of single molecule spectroscopy at room temperature. Individual trimers exhibit superradiance and loss of vibronic structure in emission spectrum, features proving exciton delocalization. We identify two distinct photodegradation pathways for single trimers upon sequential photobleaching of the chromophores. The rate of each pathway is a measure for the contribution of the separate dyes to the collective excited state of the system, in this way probing the wave function of the delocalized exciton.

AB - The exciton wave function of a trichromophoric system is investigated by means of single molecule spectroscopy at room temperature. Individual trimers exhibit superradiance and loss of vibronic structure in emission spectrum, features proving exciton delocalization. We identify two distinct photodegradation pathways for single trimers upon sequential photobleaching of the chromophores. The rate of each pathway is a measure for the contribution of the separate dyes to the collective excited state of the system, in this way probing the wave function of the delocalized exciton.

KW - IR-49160

KW - METIS-221238

U2 - 10.1103/PhysRevLett.93.236404

DO - 10.1103/PhysRevLett.93.236404

M3 - Article

SN - 0031-9007

VL - 93

SP - 236404-1-236404-4

JO - Physical review letters

JF - Physical review letters

IS - 23

ER -

Single Molecule Photobleaching Probes the Exciton Wavefunction in a Multichromophoric System

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Keywords

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