Mesoscopic modelling of charge evolution in conducting polymers
Autor(a) principal: | |
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Data de Publicação: | 2000 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/3358 |
Resumo: | We address here some of the issues relating to conducting polymer based devices. We examine the effects of polymer disorder on charge injection, transport, trapping and recombination in light-emitting diodes (LEDs) using a mesoscopic model which includes specific realizations of the electroluminescent polymer network. A key point of this model is to consider both the intermolecular and the interdomain charge carrier transport which are strongly influenced by structural polymer disorder. Simulations of bipolar charge evolution (electrons and holes) through a polydiacetylene (PDA) film, which are injected in the polymer layer from the appropriated electrodes, have been used to give some insights to the issue concerning the fraction of polymer molecules contributing to the conduction process as well as to light emission. The effect of charge traps, such as cross-links, on space charge and recombination is also discussed. |
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Mesoscopic modelling of charge evolution in conducting polymersMesoscopic modellingConducting polymersElectroluminescenceElectronic processesConjugated polymersEfficiencyTransportDevicesDiodesScience & TechnologyWe address here some of the issues relating to conducting polymer based devices. We examine the effects of polymer disorder on charge injection, transport, trapping and recombination in light-emitting diodes (LEDs) using a mesoscopic model which includes specific realizations of the electroluminescent polymer network. A key point of this model is to consider both the intermolecular and the interdomain charge carrier transport which are strongly influenced by structural polymer disorder. Simulations of bipolar charge evolution (electrons and holes) through a polydiacetylene (PDA) film, which are injected in the polymer layer from the appropriated electrodes, have been used to give some insights to the issue concerning the fraction of polymer molecules contributing to the conduction process as well as to light emission. The effect of charge traps, such as cross-links, on space charge and recombination is also discussed.ElsevierUniversidade do MinhoRamos, Marta M. D.Stoneham, A. M.2000-062000-06-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/3358eng“Computational Materials Science”. ISSN 0927-0256. 17:2/4 (2000) 260-264.0927-0256http://www.elsevier.com/wps/find/journaldescription.cws_home/523412/description#descriptionhttp://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TWM-40D6384-13-S&_cdi=5566&_user=2459786&_orig=search&_coverDate=06%2F30%2F2000&_sk=999829997&view=c&wchp=dGLbVzb-zSkzS&md5=9746c5243aa97b2a9eb8112a884274b4&ie=/sdarticle.pdfinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:30:47Zoai:repositorium.sdum.uminho.pt:1822/3358Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:26:02.279938Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Mesoscopic modelling of charge evolution in conducting polymers |
title |
Mesoscopic modelling of charge evolution in conducting polymers |
spellingShingle |
Mesoscopic modelling of charge evolution in conducting polymers Ramos, Marta M. D. Mesoscopic modelling Conducting polymers Electroluminescence Electronic processes Conjugated polymers Efficiency Transport Devices Diodes Science & Technology |
title_short |
Mesoscopic modelling of charge evolution in conducting polymers |
title_full |
Mesoscopic modelling of charge evolution in conducting polymers |
title_fullStr |
Mesoscopic modelling of charge evolution in conducting polymers |
title_full_unstemmed |
Mesoscopic modelling of charge evolution in conducting polymers |
title_sort |
Mesoscopic modelling of charge evolution in conducting polymers |
author |
Ramos, Marta M. D. |
author_facet |
Ramos, Marta M. D. Stoneham, A. M. |
author_role |
author |
author2 |
Stoneham, A. M. |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Ramos, Marta M. D. Stoneham, A. M. |
dc.subject.por.fl_str_mv |
Mesoscopic modelling Conducting polymers Electroluminescence Electronic processes Conjugated polymers Efficiency Transport Devices Diodes Science & Technology |
topic |
Mesoscopic modelling Conducting polymers Electroluminescence Electronic processes Conjugated polymers Efficiency Transport Devices Diodes Science & Technology |
description |
We address here some of the issues relating to conducting polymer based devices. We examine the effects of polymer disorder on charge injection, transport, trapping and recombination in light-emitting diodes (LEDs) using a mesoscopic model which includes specific realizations of the electroluminescent polymer network. A key point of this model is to consider both the intermolecular and the interdomain charge carrier transport which are strongly influenced by structural polymer disorder. Simulations of bipolar charge evolution (electrons and holes) through a polydiacetylene (PDA) film, which are injected in the polymer layer from the appropriated electrodes, have been used to give some insights to the issue concerning the fraction of polymer molecules contributing to the conduction process as well as to light emission. The effect of charge traps, such as cross-links, on space charge and recombination is also discussed. |
publishDate |
2000 |
dc.date.none.fl_str_mv |
2000-06 2000-06-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1822/3358 |
url |
http://hdl.handle.net/1822/3358 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
“Computational Materials Science”. ISSN 0927-0256. 17:2/4 (2000) 260-264. 0927-0256 http://www.elsevier.com/wps/find/journaldescription.cws_home/523412/description#description http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TWM-40D6384-13-S&_cdi=5566&_user=2459786&_orig=search&_coverDate=06%2F30%2F2000&_sk=999829997&view=c&wchp=dGLbVzb-zSkzS&md5=9746c5243aa97b2a9eb8112a884274b4&ie=/sdarticle.pdf |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799132746501586944 |