Large spectral diffusion of conjugated polymer single molecule fluorescence at low temperature

Oleg Mirzov; Tönu Pullerits; F Cichos; C von Borczyskowski; Ivan Scheblykin

doi:10.1016/j.cplett.2005.04.044

Large spectral diffusion of conjugated polymer single molecule fluorescence at low temperature

Oleg Mirzov, Tönu Pullerits, F Cichos, C von Borczyskowski, Ivan Scheblykin

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Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

22 Citeringar (SciVal)

Sammanfattning

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.

Originalspråk	engelska
Sidor (från-till)	317-321
Tidskrift	Chemical Physics Letters
Volym	408
Utgåva	4-6
DOI	https://doi.org/10.1016/j.cplett.2005.04.044
Status	Published - 2005

Bibliografisk information

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)

Ämnesklassifikation (UKÄ)

Atom- och molekylfysik och optik

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10.1016/j.cplett.2005.04.044

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title = "Large spectral diffusion of conjugated polymer single molecule fluorescence at low temperature",

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 = "Oleg Mirzov and T{\"o}nu Pullerits and F Cichos and {von Borczyskowski}, C and Ivan Scheblykin",

note = "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)",

year = "2005",

doi = "10.1016/j.cplett.2005.04.044",

language = "English",

volume = "408",

pages = "317--321",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier",

number = "4-6",

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TY - JOUR

T1 - Large spectral diffusion of conjugated polymer single molecule fluorescence at low temperature

AU - Mirzov, Oleg

AU - Pullerits, Tönu

AU - Cichos, F

AU - von Borczyskowski, C

AU - Scheblykin, Ivan

N1 - 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)

PY - 2005

Y1 - 2005

N2 - 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.

AB - 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.

U2 - 10.1016/j.cplett.2005.04.044

DO - 10.1016/j.cplett.2005.04.044

M3 - Article

VL - 408

SP - 317

EP - 321

JO - Chemical Physics Letters

JF - Chemical Physics Letters

SN - 0009-2614

IS - 4-6

ER -

Large spectral diffusion of conjugated polymer single molecule fluorescence at low temperature

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