Electric field induced quenching of the fluorescence of a conjugated polymer probed at the single molecule level

Ralph Hania; Ivan Scheblykin

doi:10.1016/j.cplett.2005.08.058

Electric field induced quenching of the fluorescence of a conjugated polymer probed at the single molecule level

Ralph Hania, Ivan Scheblykin

Chemical Physics

Research output: Contribution to journal › Article › peer-review

Abstract

Electric field (EF) induced quenching of the fluorescence of large (ca. 10(3) monomers) single chains of MEH-PPV was observed. Directly after application of the field most of the individual MEH-PPV chains were either unaffected by the field or completely quenched by it, while the number of affected molecules increased with the strength of the EF Moreover, application of the field induced fluorescence blinking. Both effects are attributed to EF-assisted formation of long-living charged species that during their lifetime act as quenchers for excitations. The same type of quenchers are thought to be responsible for blinking observed without an electric field. (c) 2005 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	127-131
Journal	Chemical Physics Letters
Volume	414
Issue number	1-3
DOIs	https://doi.org/10.1016/j.cplett.2005.08.058
Publication status	Published - 2005

Bibliographical 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)

Subject classification (UKÄ)

Atom and Molecular Physics and Optics

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10.1016/j.cplett.2005.08.058

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title = "Electric field induced quenching of the fluorescence of a conjugated polymer probed at the single molecule level",

abstract = "Electric field (EF) induced quenching of the fluorescence of large (ca. 10(3) monomers) single chains of MEH-PPV was observed. Directly after application of the field most of the individual MEH-PPV chains were either unaffected by the field or completely quenched by it, while the number of affected molecules increased with the strength of the EF Moreover, application of the field induced fluorescence blinking. Both effects are attributed to EF-assisted formation of long-living charged species that during their lifetime act as quenchers for excitations. The same type of quenchers are thought to be responsible for blinking observed without an electric field. (c) 2005 Elsevier B.V. All rights reserved.",

author = "Ralph Hania 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.2005.08.058",

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T1 - Electric field induced quenching of the fluorescence of a conjugated polymer probed at the single molecule level

AU - Hania, Ralph

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 - Electric field (EF) induced quenching of the fluorescence of large (ca. 10(3) monomers) single chains of MEH-PPV was observed. Directly after application of the field most of the individual MEH-PPV chains were either unaffected by the field or completely quenched by it, while the number of affected molecules increased with the strength of the EF Moreover, application of the field induced fluorescence blinking. Both effects are attributed to EF-assisted formation of long-living charged species that during their lifetime act as quenchers for excitations. The same type of quenchers are thought to be responsible for blinking observed without an electric field. (c) 2005 Elsevier B.V. All rights reserved.

AB - Electric field (EF) induced quenching of the fluorescence of large (ca. 10(3) monomers) single chains of MEH-PPV was observed. Directly after application of the field most of the individual MEH-PPV chains were either unaffected by the field or completely quenched by it, while the number of affected molecules increased with the strength of the EF Moreover, application of the field induced fluorescence blinking. Both effects are attributed to EF-assisted formation of long-living charged species that during their lifetime act as quenchers for excitations. The same type of quenchers are thought to be responsible for blinking observed without an electric field. (c) 2005 Elsevier B.V. All rights reserved.

UR - https://www.scopus.com/pages/publications/28844476514

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DO - 10.1016/j.cplett.2005.08.058

M3 - Article

SN - 0009-2614

VL - 414

SP - 127

EP - 131

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-3

ER -

Electric field induced quenching of the fluorescence of a conjugated polymer probed at the single molecule level

Abstract

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