Inhomogeneous Quenching as a Limit of the Correlation Between Fluorescence Polarization and Conformation of Single Molecules
(2013) In The Journal of Physical Chemistry Letters 4(6). p.1053-1058- Abstract
- The photophysical properties of conjugated polymers (CPs) largely depend on the interactions between the CP and its environment. We present a study of two polymers with identical conjugated backbones, bare and insulated, that showed different fluorescence excitation modulation depth histograms. However, the polarization differences are not related to differences in conformation, as commonly believed, but to the existence of "dark" chromophores in the bare polymer that are statically quenched. This results in inhomogeneous quenching of the polymer chain that breaks the correlation between excitation fluorescence polarization and conjugated polymer chain conformation.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3749123
- author
- Camacho Dejay, Rafael LU ; Thomsson, Daniel LU ; Sforazzini, Giuseppe ; Anderson, Harry L. and Scheblykin, Ivan LU
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- in
- The Journal of Physical Chemistry Letters
- volume
- 4
- issue
- 6
- pages
- 1053 - 1058
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000316772900035
- scopus:84875543623
- pmid:26291377
- ISSN
- 1948-7185
- DOI
- 10.1021/jz400142x
- 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: Chemical Physics (S) (011001060)
- id
- e790292a-e1dc-4e4f-8485-88a5e6ef4f70 (old id 3749123)
- date added to LUP
- 2016-04-01 13:33:47
- date last changed
- 2023-09-03 01:32:42
@article{e790292a-e1dc-4e4f-8485-88a5e6ef4f70, abstract = {{The photophysical properties of conjugated polymers (CPs) largely depend on the interactions between the CP and its environment. We present a study of two polymers with identical conjugated backbones, bare and insulated, that showed different fluorescence excitation modulation depth histograms. However, the polarization differences are not related to differences in conformation, as commonly believed, but to the existence of "dark" chromophores in the bare polymer that are statically quenched. This results in inhomogeneous quenching of the polymer chain that breaks the correlation between excitation fluorescence polarization and conjugated polymer chain conformation.}}, author = {{Camacho Dejay, Rafael and Thomsson, Daniel and Sforazzini, Giuseppe and Anderson, Harry L. and Scheblykin, Ivan}}, issn = {{1948-7185}}, language = {{eng}}, number = {{6}}, pages = {{1053--1058}}, publisher = {{The American Chemical Society (ACS)}}, series = {{The Journal of Physical Chemistry Letters}}, title = {{Inhomogeneous Quenching as a Limit of the Correlation Between Fluorescence Polarization and Conformation of Single Molecules}}, url = {{http://dx.doi.org/10.1021/jz400142x}}, doi = {{10.1021/jz400142x}}, volume = {{4}}, year = {{2013}}, }