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Polydispersity of the photoluminescence quantum yield in single conjugated polymer chains

Mirzov, Oleg LU and Scheblykin, Ivan LU (2005) In Chemical Physics 318(3). p.217-222
Abstract
The conjugated polymer poly(2-methoxy-5-(2'-ethylhexyloxy)-1,4-pheiiylene vinylene) (MEH-PPV) was studied by a single-molecule imaging technique. A comparison of statistical distributions of fluorescence intensity with molecular weight distributions revealed that the distribution of the photoluminescence quantum yield of the single polymer chains under study is significantly asymmetric, with a polydispersity greater than or similar to 2. The result implies that there are molecules whose quantum yield is a few times higher than the ensemble quantum yield. This conclusion Suggests a possibility of a great improvement of the photoluminescence quantum yield of MEH-PPV, which is known to be several times less than 1. (c) 2005 Elsevier B.V.. All... (More)
The conjugated polymer poly(2-methoxy-5-(2'-ethylhexyloxy)-1,4-pheiiylene vinylene) (MEH-PPV) was studied by a single-molecule imaging technique. A comparison of statistical distributions of fluorescence intensity with molecular weight distributions revealed that the distribution of the photoluminescence quantum yield of the single polymer chains under study is significantly asymmetric, with a polydispersity greater than or similar to 2. The result implies that there are molecules whose quantum yield is a few times higher than the ensemble quantum yield. This conclusion Suggests a possibility of a great improvement of the photoluminescence quantum yield of MEH-PPV, which is known to be several times less than 1. (c) 2005 Elsevier B.V.. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Chemical Physics
volume
318
issue
3
pages
217 - 222
publisher
Elsevier
external identifiers
  • wos:000233709300006
  • scopus:27844507535
ISSN
0301-0104
DOI
10.1016/j.chemphys.2005.06.017
language
English
LU publication?
yes
id
53131518-03f1-4c5e-b792-76fec1ab6983 (old id 151802)
date added to LUP
2007-07-03 14:21:13
date last changed
2017-01-08 05:13:33
@article{53131518-03f1-4c5e-b792-76fec1ab6983,
  abstract     = {The conjugated polymer poly(2-methoxy-5-(2'-ethylhexyloxy)-1,4-pheiiylene vinylene) (MEH-PPV) was studied by a single-molecule imaging technique. A comparison of statistical distributions of fluorescence intensity with molecular weight distributions revealed that the distribution of the photoluminescence quantum yield of the single polymer chains under study is significantly asymmetric, with a polydispersity greater than or similar to 2. The result implies that there are molecules whose quantum yield is a few times higher than the ensemble quantum yield. This conclusion Suggests a possibility of a great improvement of the photoluminescence quantum yield of MEH-PPV, which is known to be several times less than 1. (c) 2005 Elsevier B.V.. All rights reserved.},
  author       = {Mirzov, Oleg and Scheblykin, Ivan},
  issn         = {0301-0104},
  language     = {eng},
  number       = {3},
  pages        = {217--222},
  publisher    = {Elsevier},
  series       = {Chemical Physics},
  title        = {Polydispersity of the photoluminescence quantum yield in single conjugated polymer chains},
  url          = {http://dx.doi.org/10.1016/j.chemphys.2005.06.017},
  volume       = {318},
  year         = {2005},
}