Exciton formation in dye doped OLEDs using electrically detected magnetic resonance

Detalhes bibliográficos
Autor(a) principal: Batagin-Neto, Augusto [UNESP]
Data de Publicação: 2011
Outros Autores: Gomez, Jorge A., Castro, Fernando A., Nueesch, Frank, Zuppiroli, Libero, Graeff, Carlos Frederico de Oliveira [UNESP]
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1117/12.918246
http://hdl.handle.net/11449/40358
Resumo: Electrically Detected Magnetic Resonance (EDMR) was used to investigate the influence of dye doping molecules on spin-dependent exciton formation in Aluminum (III) 8-hydroxyquinoline (Alq(3)) based OLEDs with different device structures and temperature ranges. 4-(dicyanomethylene)-2-methyl-6-{2-[(4-diphenylamino-phenyl]ethyl}-4H-pyran (DCM-TPA) and 5,6,11,12-tetraphenylnaphthacene (Rubrene) were used as dopants. A strong temperature dependence have been observed for doped OLEDs, with a decrease of two orders of magnitude in EDMR signal for temperatures above similar to 200 K. The signal temperature dependence were fitted supposing different spin-lattice relaxation processes. The results suggest that thermally activated vibrations of dopants molecules induce spin pair dissociation, reducing the signal.
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spelling Exciton formation in dye doped OLEDs using electrically detected magnetic resonanceAlq3dye doped OLEDsDCM-TPARubreneEDMRspin-relaxation processesElectrically Detected Magnetic Resonance (EDMR) was used to investigate the influence of dye doping molecules on spin-dependent exciton formation in Aluminum (III) 8-hydroxyquinoline (Alq(3)) based OLEDs with different device structures and temperature ranges. 4-(dicyanomethylene)-2-methyl-6-{2-[(4-diphenylamino-phenyl]ethyl}-4H-pyran (DCM-TPA) and 5,6,11,12-tetraphenylnaphthacene (Rubrene) were used as dopants. A strong temperature dependence have been observed for doped OLEDs, with a decrease of two orders of magnitude in EDMR signal for temperatures above similar to 200 K. The signal temperature dependence were fitted supposing different spin-lattice relaxation processes. The results suggest that thermally activated vibrations of dopants molecules induce spin pair dissociation, reducing the signal.UNESP Univ Estadual Paulista, POSMAT Prog Pos Grad Ciência Tecnol Mat, Bauru, SP, BrazilUNESP Univ Estadual Paulista, POSMAT Prog Pos Grad Ciência Tecnol Mat, Bauru, SP, BrazilSpie - Int Soc Optical EngineeringUniversidade Estadual Paulista (Unesp)Batagin-Neto, Augusto [UNESP]Gomez, Jorge A.Castro, Fernando A.Nueesch, FrankZuppiroli, LiberoGraeff, Carlos Frederico de Oliveira [UNESP]2014-05-20T15:31:08Z2014-05-20T15:31:08Z2011-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject7http://dx.doi.org/10.1117/12.918246Photonics and Optolectronics Meetings (poem) 2011: Optoelectronic Devices and Integration. Bellingham: Spie-int Soc Optical Engineering, v. 8333, p. 7, 2011.0277-786Xhttp://hdl.handle.net/11449/4035810.1117/12.918246WOS:0003012787000470000-0003-0162-8273Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhotonics and Optolectronics Meetings (poem) 2011: Optoelectronic Devices and Integrationinfo:eu-repo/semantics/openAccess2021-10-23T21:37:55Zoai:repositorio.unesp.br:11449/40358Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:45:33.804008Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Exciton formation in dye doped OLEDs using electrically detected magnetic resonance
title Exciton formation in dye doped OLEDs using electrically detected magnetic resonance
spellingShingle Exciton formation in dye doped OLEDs using electrically detected magnetic resonance
Batagin-Neto, Augusto [UNESP]
Alq3
dye doped OLEDs
DCM-TPA
Rubrene
EDMR
spin-relaxation processes
title_short Exciton formation in dye doped OLEDs using electrically detected magnetic resonance
title_full Exciton formation in dye doped OLEDs using electrically detected magnetic resonance
title_fullStr Exciton formation in dye doped OLEDs using electrically detected magnetic resonance
title_full_unstemmed Exciton formation in dye doped OLEDs using electrically detected magnetic resonance
title_sort Exciton formation in dye doped OLEDs using electrically detected magnetic resonance
author Batagin-Neto, Augusto [UNESP]
author_facet Batagin-Neto, Augusto [UNESP]
Gomez, Jorge A.
Castro, Fernando A.
Nueesch, Frank
Zuppiroli, Libero
Graeff, Carlos Frederico de Oliveira [UNESP]
author_role author
author2 Gomez, Jorge A.
Castro, Fernando A.
Nueesch, Frank
Zuppiroli, Libero
Graeff, Carlos Frederico de Oliveira [UNESP]
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Batagin-Neto, Augusto [UNESP]
Gomez, Jorge A.
Castro, Fernando A.
Nueesch, Frank
Zuppiroli, Libero
Graeff, Carlos Frederico de Oliveira [UNESP]
dc.subject.por.fl_str_mv Alq3
dye doped OLEDs
DCM-TPA
Rubrene
EDMR
spin-relaxation processes
topic Alq3
dye doped OLEDs
DCM-TPA
Rubrene
EDMR
spin-relaxation processes
description Electrically Detected Magnetic Resonance (EDMR) was used to investigate the influence of dye doping molecules on spin-dependent exciton formation in Aluminum (III) 8-hydroxyquinoline (Alq(3)) based OLEDs with different device structures and temperature ranges. 4-(dicyanomethylene)-2-methyl-6-{2-[(4-diphenylamino-phenyl]ethyl}-4H-pyran (DCM-TPA) and 5,6,11,12-tetraphenylnaphthacene (Rubrene) were used as dopants. A strong temperature dependence have been observed for doped OLEDs, with a decrease of two orders of magnitude in EDMR signal for temperatures above similar to 200 K. The signal temperature dependence were fitted supposing different spin-lattice relaxation processes. The results suggest that thermally activated vibrations of dopants molecules induce spin pair dissociation, reducing the signal.
publishDate 2011
dc.date.none.fl_str_mv 2011-01-01
2014-05-20T15:31:08Z
2014-05-20T15:31:08Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1117/12.918246
Photonics and Optolectronics Meetings (poem) 2011: Optoelectronic Devices and Integration. Bellingham: Spie-int Soc Optical Engineering, v. 8333, p. 7, 2011.
0277-786X
http://hdl.handle.net/11449/40358
10.1117/12.918246
WOS:000301278700047
0000-0003-0162-8273
url http://dx.doi.org/10.1117/12.918246
http://hdl.handle.net/11449/40358
identifier_str_mv Photonics and Optolectronics Meetings (poem) 2011: Optoelectronic Devices and Integration. Bellingham: Spie-int Soc Optical Engineering, v. 8333, p. 7, 2011.
0277-786X
10.1117/12.918246
WOS:000301278700047
0000-0003-0162-8273
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Photonics and Optolectronics Meetings (poem) 2011: Optoelectronic Devices and Integration
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 7
dc.publisher.none.fl_str_mv Spie - Int Soc Optical Engineering
publisher.none.fl_str_mv Spie - Int Soc Optical Engineering
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808128557339115520

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