Redistribution of emitting state population in conjugated polymers probed by single-molecule fluorescence polarization spectroscopy
Förster, Michael LU ; Thomsson, Daniel LU ; Hania, Ralph LU and Scheblykin, Ivan LU
(2007)
In Physical Chemistry Chemical Physics
9(6).
p.761-766
- Abstract
- Fluctuations in the fluorescence polarization degree and direction are reported for the first time for single conjugated polymer molecules embedded in a polystyrene matrix at room temperature. The polymer molecule, a polythiophene derivative, clearly emits as a multi-chromophore ensemble showing that the energy does not funnel to any specific low-energy trap. The fluorescence instead originates from thermally populated exciton states with different relative orientations of the transition dipole moments. The fluctuations in the fluorescence polarization are explained in terms of changes in the relative contributions of the different exciton states to the signal due to conformational fluctuations of the molecule or selective exciton... (More)
- Fluctuations in the fluorescence polarization degree and direction are reported for the first time for single conjugated polymer molecules embedded in a polystyrene matrix at room temperature. The polymer molecule, a polythiophene derivative, clearly emits as a multi-chromophore ensemble showing that the energy does not funnel to any specific low-energy trap. The fluorescence instead originates from thermally populated exciton states with different relative orientations of the transition dipole moments. The fluctuations in the fluorescence polarization are explained in terms of changes in the relative contributions of the different exciton states to the signal due to conformational fluctuations of the molecule or selective exciton quenching by triplet states. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/674983
- author
- Förster, Michael
LU
; Thomsson, Daniel
LU
; Hania, Ralph
LU
and Scheblykin, Ivan
LU
- organization
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Chemistry Chemical Physics
- volume
- 9
- issue
- 6
- pages
- 761 - 766
- publisher
- Royal Society of Chemistry
- external identifiers
-
- wos:000243928300012
- scopus:33846857281
- ISSN
- 1463-9084
- DOI
- 10.1039/b615596k
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Medical Inflammation Research (013212019), Chemical Physics (S) (011001060)
- id
- 1e44b439-59ab-4d66-9911-2df0abf93357 (old id 674983)
- date added to LUP
- 2016-04-01 16:38:40
- date last changed
- 2022-01-28 21:06:48
@article{1e44b439-59ab-4d66-9911-2df0abf93357,
abstract = {{Fluctuations in the fluorescence polarization degree and direction are reported for the first time for single conjugated polymer molecules embedded in a polystyrene matrix at room temperature. The polymer molecule, a polythiophene derivative, clearly emits as a multi-chromophore ensemble showing that the energy does not funnel to any specific low-energy trap. The fluorescence instead originates from thermally populated exciton states with different relative orientations of the transition dipole moments. The fluctuations in the fluorescence polarization are explained in terms of changes in the relative contributions of the different exciton states to the signal due to conformational fluctuations of the molecule or selective exciton quenching by triplet states.}},
author = {{Förster, Michael and Thomsson, Daniel and Hania, Ralph and Scheblykin, Ivan}},
issn = {{1463-9084}},
language = {{eng}},
number = {{6}},
pages = {{761--766}},
publisher = {{Royal Society of Chemistry}},
series = {{Physical Chemistry Chemical Physics}},
title = {{Redistribution of emitting state population in conjugated polymers probed by single-molecule fluorescence polarization spectroscopy}},
url = {{http://dx.doi.org/10.1039/b615596k}},
doi = {{10.1039/b615596k}},
volume = {{9}},
year = {{2007}},
}