Study of solvent-conjugated polymer interactions by polarized spectroscopy: MEH-PPV and Poly(9,9′-dioctylfluorene-2,7-diyl)

Absorption, emission, and anisotropy measurements were performed on poly-[2-methoxy-5(2′-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) and poly-(9,9′-dioctylfluorene-2,7-diyl) (PF) solutions of various solvents, and in thin films deposited from them. The good correlation of MEH-PPV absorption and...

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Detalles Bibliográficos
Autor principal: Aramendía, Pedro Francisco
Publicado: 2010
Materias:
Conjugated polymers
Fluorescence anisotropy
MEH-PPV
Polyfluorene
Solutions and films
Solvent effects
Polyfluorene solutions
Absorption
Anisotropy
Emission spectroscopy
Energy transfer
Fluorescence
Polymers
Solvents
Solution mining
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222313_v130_n3_p415_Cossiello
http://hdl.handle.net/20.500.12110/paper_00222313_v130_n3_p415_Cossiello
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00222313_v130_n3_p415_Cossiello
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spelling paper:paper_00222313_v130_n3_p415_Cossiello2023-06-08T14:47:32Z Study of solvent-conjugated polymer interactions by polarized spectroscopy: MEH-PPV and Poly(9,9′-dioctylfluorene-2,7-diyl) Aramendía, Pedro Francisco Conjugated polymers Fluorescence anisotropy MEH-PPV Polyfluorene Solutions and films Solvent effects Fluorescence anisotropy MEH-PPV Polyfluorene Polyfluorene solutions Solvent effects Absorption Anisotropy Conjugated polymers Emission spectroscopy Energy transfer Fluorescence Polymers Solvents Solution mining Absorption, emission, and anisotropy measurements were performed on poly-[2-methoxy-5(2′-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) and poly-(9,9′-dioctylfluorene-2,7-diyl) (PF) solutions of various solvents, and in thin films deposited from them. The good correlation of MEH-PPV absorption and emission energy with Hildebrandt's dispersive parameter indicate that dispersive forces regulate the effective extent of the luminophore. The excitation and the emission spectra of α and β chains can be distinguished in PF solutions using the steady-state anisotropy. PF films show greater memory effect from the solutions from which they were spun than MEH-PPV. Anisotropy of MEH-PPV is very low, both in solutions and in films reflecting efficient energy migration. Anisotropy of PF in solutions and films demonstrates great differences in energy transfer efficiency within the α and β phases, while there is no energy transfer between these chain conformations. © 2009. Fil:Aramendía, P.F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222313_v130_n3_p415_Cossiello http://hdl.handle.net/20.500.12110/paper_00222313_v130_n3_p415_Cossiello
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Conjugated polymers
Fluorescence anisotropy
MEH-PPV
Polyfluorene
Solutions and films
Solvent effects
Fluorescence anisotropy
MEH-PPV
Polyfluorene
Polyfluorene solutions
Solvent effects
Absorption
Anisotropy
Conjugated polymers
Emission spectroscopy
Energy transfer
Fluorescence
Polymers
Solvents
Solution mining
spellingShingle Conjugated polymers
Fluorescence anisotropy
MEH-PPV
Polyfluorene
Solutions and films
Solvent effects
Fluorescence anisotropy
MEH-PPV
Polyfluorene
Polyfluorene solutions
Solvent effects
Absorption
Anisotropy
Conjugated polymers
Emission spectroscopy
Energy transfer
Fluorescence
Polymers
Solvents
Solution mining
Aramendía, Pedro Francisco
Study of solvent-conjugated polymer interactions by polarized spectroscopy: MEH-PPV and Poly(9,9′-dioctylfluorene-2,7-diyl)
topic_facet Conjugated polymers
Fluorescence anisotropy
MEH-PPV
Polyfluorene
Solutions and films
Solvent effects
Fluorescence anisotropy
MEH-PPV
Polyfluorene
Polyfluorene solutions
Solvent effects
Absorption
Anisotropy
Conjugated polymers
Emission spectroscopy
Energy transfer
Fluorescence
Polymers
Solvents
Solution mining
description Absorption, emission, and anisotropy measurements were performed on poly-[2-methoxy-5(2′-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) and poly-(9,9′-dioctylfluorene-2,7-diyl) (PF) solutions of various solvents, and in thin films deposited from them. The good correlation of MEH-PPV absorption and emission energy with Hildebrandt's dispersive parameter indicate that dispersive forces regulate the effective extent of the luminophore. The excitation and the emission spectra of α and β chains can be distinguished in PF solutions using the steady-state anisotropy. PF films show greater memory effect from the solutions from which they were spun than MEH-PPV. Anisotropy of MEH-PPV is very low, both in solutions and in films reflecting efficient energy migration. Anisotropy of PF in solutions and films demonstrates great differences in energy transfer efficiency within the α and β phases, while there is no energy transfer between these chain conformations. © 2009.
author Aramendía, Pedro Francisco
author_facet Aramendía, Pedro Francisco
author_sort Aramendía, Pedro Francisco
title Study of solvent-conjugated polymer interactions by polarized spectroscopy: MEH-PPV and Poly(9,9′-dioctylfluorene-2,7-diyl)
title_short Study of solvent-conjugated polymer interactions by polarized spectroscopy: MEH-PPV and Poly(9,9′-dioctylfluorene-2,7-diyl)
title_full Study of solvent-conjugated polymer interactions by polarized spectroscopy: MEH-PPV and Poly(9,9′-dioctylfluorene-2,7-diyl)
title_fullStr Study of solvent-conjugated polymer interactions by polarized spectroscopy: MEH-PPV and Poly(9,9′-dioctylfluorene-2,7-diyl)
title_full_unstemmed Study of solvent-conjugated polymer interactions by polarized spectroscopy: MEH-PPV and Poly(9,9′-dioctylfluorene-2,7-diyl)
title_sort study of solvent-conjugated polymer interactions by polarized spectroscopy: meh-ppv and poly(9,9′-dioctylfluorene-2,7-diyl)
publishDate 2010
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222313_v130_n3_p415_Cossiello
http://hdl.handle.net/20.500.12110/paper_00222313_v130_n3_p415_Cossiello
work_keys_str_mv AT aramendiapedrofrancisco studyofsolventconjugatedpolymerinteractionsbypolarizedspectroscopymehppvandpoly99dioctylfluorene27diyl
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