Effect of disorder on ultrafast exciton dynamics probed by single molecule spectroscopy
Hernando, Jordi (Universitat Autònoma de Barcelona. Departament de Química)
van Dijk, Erik M. H. P. (Institute for Nanotechnology (Enschede, Països Baixos))
Hoogenboom, Jacob P. (Institute for Nanotechnology (Enschede, Països Baixos))
García López, Juan José (Institute for Nanotechnology (Enschede, Països Baixos))
Reinhoudt, David N. (Institute for Nanotechnology (Enschede, Països Baixos))
Crego Calama, Mercedes (Institute for Nanotechnology (Enschede, Països Baixos))
García Parajó, María F.. (Institució Catalana de Recerca i Estudis Avançats)
van Hulst, Niek F. (Institut de Ciències Fotòniques)

Date:	2006
Abstract:	We present a single-molecule study unraveling the effect of static disorder on the vibrational-assisted ultrafast exciton dynamics in multichromophoric systems. For every single complex, we probe the initial exciton relaxation process by an ultrafast pump-probe approach and the coupling to vibrational modes by emission spectra, while fluorescence lifetime analysis measures the amount of static disorder. Exploiting the wide range of disorder found from complex to complex, we demonstrate that static disorder accelerates the dephasing and energy relaxation rate of the exciton.
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Language:	Anglès
Document:	Article ; Versió publicada
Published in:	Physical review letters, Vol. 97, Issue 21 (November 2006) , p. 216403, ISSN 1079-7114

DOI: 10.1103/PhysRevLett.97.216403

4 p, 224.2 KB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Group in Electrochemistry, Photochemistry and Organic Reactivity (GEFRO)
Articles > Published articles