Large spectral diffusion of conjugated polymer single molecule fluorescence at low temperature
(2005) In Chemical Physics Letters 408(4-6). p.317-321- Abstract
- The conductive polymer poly(2-methoxy-5-(2'-ethylhexyloxy)-1,4- phenylene vinylene) (MEH-PPV) was investigated by means of single molecule spectroscopy at 15 K. MEH-PPV single chains were deposited onto a surface from a toluene solution and covered with a polymer cap layer spin-coated from an aqueous solution for protection from air. The MEH-PPV molecules exhibited large fluorescence spectral diffusion with the range reaching 1000 cm(-1). We concluded that conformational changes, affecting dispersive interactions and conjugation length, is the most probable mechanism of the observed effect. It is the matrix-free environment that allows the MEH-PPV chains to undergo sufficiently large conformational changes even at low temperature. (c) 2005... (More)
- The conductive polymer poly(2-methoxy-5-(2'-ethylhexyloxy)-1,4- phenylene vinylene) (MEH-PPV) was investigated by means of single molecule spectroscopy at 15 K. MEH-PPV single chains were deposited onto a surface from a toluene solution and covered with a polymer cap layer spin-coated from an aqueous solution for protection from air. The MEH-PPV molecules exhibited large fluorescence spectral diffusion with the range reaching 1000 cm(-1). We concluded that conformational changes, affecting dispersive interactions and conjugation length, is the most probable mechanism of the observed effect. It is the matrix-free environment that allows the MEH-PPV chains to undergo sufficiently large conformational changes even at low temperature. (c) 2005 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/151901
- author
- Mirzov, Oleg LU ; Pullerits, Tönu LU ; Cichos, F ; von Borczyskowski, C and Scheblykin, Ivan LU
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Chemical Physics Letters
- volume
- 408
- issue
- 4-6
- pages
- 317 - 321
- publisher
- Elsevier
- external identifiers
-
- wos:000229824700026
- scopus:19744366677
- ISSN
- 0009-2614
- DOI
- 10.1016/j.cplett.2005.04.044
- 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
- 47ed3000-a4b4-4cd7-9fdc-cca1d573a289 (old id 151901)
- date added to LUP
- 2016-04-01 17:13:23
- date last changed
- 2024-01-11 22:54:02
@article{47ed3000-a4b4-4cd7-9fdc-cca1d573a289, abstract = {{The conductive polymer poly(2-methoxy-5-(2'-ethylhexyloxy)-1,4- phenylene vinylene) (MEH-PPV) was investigated by means of single molecule spectroscopy at 15 K. MEH-PPV single chains were deposited onto a surface from a toluene solution and covered with a polymer cap layer spin-coated from an aqueous solution for protection from air. The MEH-PPV molecules exhibited large fluorescence spectral diffusion with the range reaching 1000 cm(-1). We concluded that conformational changes, affecting dispersive interactions and conjugation length, is the most probable mechanism of the observed effect. It is the matrix-free environment that allows the MEH-PPV chains to undergo sufficiently large conformational changes even at low temperature. (c) 2005 Elsevier B.V. All rights reserved.}}, author = {{Mirzov, Oleg and Pullerits, Tönu and Cichos, F and von Borczyskowski, C and Scheblykin, Ivan}}, issn = {{0009-2614}}, language = {{eng}}, number = {{4-6}}, pages = {{317--321}}, publisher = {{Elsevier}}, series = {{Chemical Physics Letters}}, title = {{Large spectral diffusion of conjugated polymer single molecule fluorescence at low temperature}}, url = {{http://dx.doi.org/10.1016/j.cplett.2005.04.044}}, doi = {{10.1016/j.cplett.2005.04.044}}, volume = {{408}}, year = {{2005}}, }