publication . Article . 2005

Power-law-distributed dark states are the main pathway for photobleaching of single organic molecules.

Hoogenboom, J.P.; van Dijk, E.M.H.P.; Hernando Campos, J.; van Hulst, N.F.; Garcia Parajo, M.F.;
Open Access English
  • Published: 26 Aug 2005
Abstract
We exploit the strong excitonic coupling in a superradiant trimer molecule to distinguish between long-lived collective dark states and photobleaching events. The population and depopulation kinetics of the dark states in a single molecule follow power-law statistics over 5 orders of magnitude in time. This result is consistent with the formation of a radical unit via electron tunneling to a time-varying distribution of trapping sites in the surrounding polymer matrix. We furthermore demonstrate that this radicalization process forms the dominant pathway for molecular photobleaching.
Subjects
arXiv: Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
free text keywords: General Physics and Astronomy, Trapping, Chemical physics, Trimer, Power law, Molecule, Quantum tunnelling, Physics, Quantum mechanics, Atomic physics, Population, education.field_of_study, education, Photobleaching, Orders of magnitude (numbers), IR-52710, METIS-224406

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publication . Article . 2005

Power-law-distributed dark states are the main pathway for photobleaching of single organic molecules.

Hoogenboom, J.P.; van Dijk, E.M.H.P.; Hernando Campos, J.; van Hulst, N.F.; Garcia Parajo, M.F.;