Single Levy States-Disorder Induced Energy Funnels in Molecular Aggregates

Aboma Merdasa, Angel J. Jimenez, Rafael Camacho Dejay, Matthias Meyer, Frank Wuerthner, Ivan Scheblykin

Research output: Contribution to journalArticlepeer-review

35 Citations (SciVal)

Abstract

Using fluorescence super-resolution microscopy we studied simultaneous spectral, spatial localization, and blinking behavior of individual 1D J-aggregates. Excitons migrating 100 nm are funneled to a trap appearing as an additional red-shifted blinking fluorescence band. We propose that the trap is a Frenkel exciton state formed much below the main exciton band edge due to an environmentally induced heavy-tailed Levy disorder. This points to disorder engineering as a new avenue in controlling light-harvesting in molecular ensembles.
Original languageEnglish
Pages (from-to)6774-6781
JournalNano Letters
Volume14
Issue number12
DOIs
Publication statusPublished - 2014

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Chemical Physics (S) (011001060)

Subject classification (UKÄ)

  • Nano Technology

Keywords

  • J-aggregates
  • Levy distribution
  • super-resolution microscopy
  • single
  • molecule spectroscopy
  • Frenkel excitions
  • energy funneling

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