Photophysics of poly(p-phenylene vinylene) films

Detalhes bibliográficos
Autor(a) principal: Anni,M.
Data de Publicação: 2004
Outros Autores: Gigli,G., Cingolani,R., Gobato,Y. Galvão, Vercik,A., Marletta,A., Guimarães,F.G. E., Faria,R. M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Physics
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332004000400035
Resumo: We report on time resolved photoluminescence (PLRT) measurements in poly(p-phenylene vinylene) (PPV) films irradiated by laser in the presence of air. We observe a PL intensity enhancement and a biexponential decay dynamics of PL signal for all irradiated films. These results can be understood in terms of a chain shortening process due to carbonyl incorporation and formation of an energy profile that extends and migrates into the film and enables efficient spectral diffusion of excited carriers to a non-degraded PPV segments by Förster energy transfer.
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spelling Photophysics of poly(p-phenylene vinylene) filmsWe report on time resolved photoluminescence (PLRT) measurements in poly(p-phenylene vinylene) (PPV) films irradiated by laser in the presence of air. We observe a PL intensity enhancement and a biexponential decay dynamics of PL signal for all irradiated films. These results can be understood in terms of a chain shortening process due to carbonyl incorporation and formation of an energy profile that extends and migrates into the film and enables efficient spectral diffusion of excited carriers to a non-degraded PPV segments by Förster energy transfer.Sociedade Brasileira de Física2004-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332004000400035Brazilian Journal of Physics v.34 n.2b 2004reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97332004000400035info:eu-repo/semantics/openAccessAnni,M.Gigli,G.Cingolani,R.Gobato,Y. GalvãoVercik,A.Marletta,A.Guimarães,F.G. E.Faria,R. M.eng2004-08-31T00:00:00Zoai:scielo:S0103-97332004000400035Revistahttp://www.sbfisica.org.br/v1/home/index.php/pt/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br1678-44480103-9733opendoar:2004-08-31T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false
dc.title.none.fl_str_mv Photophysics of poly(p-phenylene vinylene) films
title Photophysics of poly(p-phenylene vinylene) films
spellingShingle Photophysics of poly(p-phenylene vinylene) films
Anni,M.
title_short Photophysics of poly(p-phenylene vinylene) films
title_full Photophysics of poly(p-phenylene vinylene) films
title_fullStr Photophysics of poly(p-phenylene vinylene) films
title_full_unstemmed Photophysics of poly(p-phenylene vinylene) films
title_sort Photophysics of poly(p-phenylene vinylene) films
author Anni,M.
author_facet Anni,M.
Gigli,G.
Cingolani,R.
Gobato,Y. Galvão
Vercik,A.
Marletta,A.
Guimarães,F.G. E.
Faria,R. M.
author_role author
author2 Gigli,G.
Cingolani,R.
Gobato,Y. Galvão
Vercik,A.
Marletta,A.
Guimarães,F.G. E.
Faria,R. M.
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Anni,M.
Gigli,G.
Cingolani,R.
Gobato,Y. Galvão
Vercik,A.
Marletta,A.
Guimarães,F.G. E.
Faria,R. M.
description We report on time resolved photoluminescence (PLRT) measurements in poly(p-phenylene vinylene) (PPV) films irradiated by laser in the presence of air. We observe a PL intensity enhancement and a biexponential decay dynamics of PL signal for all irradiated films. These results can be understood in terms of a chain shortening process due to carbonyl incorporation and formation of an energy profile that extends and migrates into the film and enables efficient spectral diffusion of excited carriers to a non-degraded PPV segments by Förster energy transfer.
publishDate 2004
dc.date.none.fl_str_mv 2004-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332004000400035
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332004000400035
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-97332004000400035
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Física
publisher.none.fl_str_mv Sociedade Brasileira de Física
dc.source.none.fl_str_mv Brazilian Journal of Physics v.34 n.2b 2004
reponame:Brazilian Journal of Physics
instname:Sociedade Brasileira de Física (SBF)
instacron:SBF
instname_str Sociedade Brasileira de Física (SBF)
instacron_str SBF
institution SBF
reponame_str Brazilian Journal of Physics
collection Brazilian Journal of Physics
repository.name.fl_str_mv Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)
repository.mail.fl_str_mv sbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br
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