Dynamics of Single Molecule Stokes Shifts: Influence of Conformation and Environment
Chemical Physics
2018-06-26 v1
Abstract
We report on time dependent Stokes shift measurements of single molecules. Broadband excitation and emission spectroscopy were applied to study the temporal Stokes shift evolution of single perylene diimide molecules (PDI) embedded in a polymer matrix on the time scale of seconds. The Stokes shift varied between individual molecules as well as for single molecules undergoing different conformations and geometries. From the distribution and temporal evolution of Stokes shifts, we unravel the interplay of nano-environment and molecular conformation. We found that Stokes shift fluctuations are related to simultaneous and unidirectional shifts of both emission and excitation spectra.
Keywords
Cite
@article{arxiv.1806.08951,
title = {Dynamics of Single Molecule Stokes Shifts: Influence of Conformation and Environment},
author = {Martin Streiter and Stefan Krause and Christian von Borczyskowski and Carsten Deibel},
journal= {arXiv preprint arXiv:1806.08951},
year = {2018}
}