Effect of Disorder on Ultrafast Exciton Dynamics Probed by Single Molecule Spectroscopy

Hernando, Jordi and Dijk van, Erik M.H.P. and Hoogenboom, Jacob P. and Garcia-Lopez, Juan José and Reinhoudt, David N. and Crego-Calama, Mercedes and Garcia-Parajo, Maria F. and Hulst van, Niek F. (2006) Effect of Disorder on Ultrafast Exciton Dynamics Probed by Single Molecule Spectroscopy. Physical Review Letters, 97 . p. 216403. ISSN 0031-9007

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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.
Item Type:	Article
Copyright:	© 2006 The American Physical Society
Research Group:	Optical Sciences (OS)
Link to this item:	http://purl.utwente.nl/publications/57507
Official URL:	http://dx.doi.org/10.1103/PhysRevLett.97.216403
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