Single molecule spectroscopy as a probe for dye-polymer interactions

R. A L Vallée*, Philippe Marsal, Els Braeken, Satoshi Habuchi, Frans C. De Schryver, Mark Van Der Auweraer, David Beljonne, Johan Hofkens

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

Experimental (Single Molecule Spectroscopy) and theoretical (quantum-chemical calculations and Monte Carlo and molecular dynamics simulations) techniques are combined to investigate the behavior and dynamics of a polymer-dye molecule system. It is shown that the dye molecule of interest (1,1′-dioctadecyl-3,3,3′,3′-tetramethylindo-dicarbocyanine) adopts two classes of conformations, namely planar and nonplanar ones, when embedded in a poly(styrene) matrix. From an in-depth analysis of the fluorescence lifetime trajectories, the planar conformers can be further classified according to the way their alkyl side chains interact with the surrounding poly(styrene) chains.

Original languageEnglish (US)
Pages (from-to)12011-12020
Number of pages10
JournalJournal of the American Chemical Society
Volume127
Issue number34
DOIs
StatePublished - Aug 31 2005
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)

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