A study of the electroluminescence mechanism in a light-emitting composite produced with PEDOT:PSS, PVA and Zn2SiO4:Mn

Detalhes bibliográficos
Autor(a) principal: Gozzi, G. [UNESP]
Data de Publicação: 2018
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.optmat.2018.08.002
http://hdl.handle.net/11449/171319
Resumo: Light-emitting composites are materials that combine the light-emitting characteristic of phosphor materials with the solubility of conductive polymers. This paper has the purpose of showing an experimental study on electroluminescence in a light-emitting composite comprising PEDOT:PSS as the conductive polymer and Zn2SiO4:Mn as the phosphor material. The relationship between d.c. current and voltage, as well as luminance and voltage, of light-emitting devices were measured for different active layer thickness and different temperature conditions. Luminance was also measured during impedance spectroscopy experiments (a.c. characterization). It was observed that the electroluminescence in the studied light-emitting composite is a field effect mechanism, with turn-on electric field of (4.6 ± 0.2) kV/cm, and that the electroluminescence efficiency is independent of temperature. Additionally, it was observed that electroluminescence is strictly dependent on the drift current of charge carriers. Finally, a model was proposed to describe the electrical properties and luminance of the studied light-emitting composite.
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spelling A study of the electroluminescence mechanism in a light-emitting composite produced with PEDOT:PSS, PVA and Zn2SiO4:MnElectroluminescence mechanismLight-emitting compositeLight-emitting deviceLight-emitting composites are materials that combine the light-emitting characteristic of phosphor materials with the solubility of conductive polymers. This paper has the purpose of showing an experimental study on electroluminescence in a light-emitting composite comprising PEDOT:PSS as the conductive polymer and Zn2SiO4:Mn as the phosphor material. The relationship between d.c. current and voltage, as well as luminance and voltage, of light-emitting devices were measured for different active layer thickness and different temperature conditions. Luminance was also measured during impedance spectroscopy experiments (a.c. characterization). It was observed that the electroluminescence in the studied light-emitting composite is a field effect mechanism, with turn-on electric field of (4.6 ± 0.2) kV/cm, and that the electroluminescence efficiency is independent of temperature. Additionally, it was observed that electroluminescence is strictly dependent on the drift current of charge carriers. Finally, a model was proposed to describe the electrical properties and luminance of the studied light-emitting composite.Physics Department at São Paulo State University - UNESPPhysics Department at São Paulo State University - UNESPUniversidade Estadual Paulista (Unesp)Gozzi, G. [UNESP]2018-12-11T16:54:52Z2018-12-11T16:54:52Z2018-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article843-851application/pdfhttp://dx.doi.org/10.1016/j.optmat.2018.08.002Optical Materials, v. 84, p. 843-851.0925-3467http://hdl.handle.net/11449/17131910.1016/j.optmat.2018.08.0022-s2.0-850512745762-s2.0-85051274576.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengOptical Materials0,592info:eu-repo/semantics/openAccess2023-12-12T06:20:47Zoai:repositorio.unesp.br:11449/171319Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:09:11.089076Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv A study of the electroluminescence mechanism in a light-emitting composite produced with PEDOT:PSS, PVA and Zn2SiO4:Mn
title A study of the electroluminescence mechanism in a light-emitting composite produced with PEDOT:PSS, PVA and Zn2SiO4:Mn
spellingShingle A study of the electroluminescence mechanism in a light-emitting composite produced with PEDOT:PSS, PVA and Zn2SiO4:Mn
Gozzi, G. [UNESP]
Electroluminescence mechanism
Light-emitting composite
Light-emitting device
title_short A study of the electroluminescence mechanism in a light-emitting composite produced with PEDOT:PSS, PVA and Zn2SiO4:Mn
title_full A study of the electroluminescence mechanism in a light-emitting composite produced with PEDOT:PSS, PVA and Zn2SiO4:Mn
title_fullStr A study of the electroluminescence mechanism in a light-emitting composite produced with PEDOT:PSS, PVA and Zn2SiO4:Mn
title_full_unstemmed A study of the electroluminescence mechanism in a light-emitting composite produced with PEDOT:PSS, PVA and Zn2SiO4:Mn
title_sort A study of the electroluminescence mechanism in a light-emitting composite produced with PEDOT:PSS, PVA and Zn2SiO4:Mn
author Gozzi, G. [UNESP]
author_facet Gozzi, G. [UNESP]
author_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Gozzi, G. [UNESP]
dc.subject.por.fl_str_mv Electroluminescence mechanism
Light-emitting composite
Light-emitting device
topic Electroluminescence mechanism
Light-emitting composite
Light-emitting device
description Light-emitting composites are materials that combine the light-emitting characteristic of phosphor materials with the solubility of conductive polymers. This paper has the purpose of showing an experimental study on electroluminescence in a light-emitting composite comprising PEDOT:PSS as the conductive polymer and Zn2SiO4:Mn as the phosphor material. The relationship between d.c. current and voltage, as well as luminance and voltage, of light-emitting devices were measured for different active layer thickness and different temperature conditions. Luminance was also measured during impedance spectroscopy experiments (a.c. characterization). It was observed that the electroluminescence in the studied light-emitting composite is a field effect mechanism, with turn-on electric field of (4.6 ± 0.2) kV/cm, and that the electroluminescence efficiency is independent of temperature. Additionally, it was observed that electroluminescence is strictly dependent on the drift current of charge carriers. Finally, a model was proposed to describe the electrical properties and luminance of the studied light-emitting composite.
publishDate 2018
dc.date.none.fl_str_mv 2018-12-11T16:54:52Z
2018-12-11T16:54:52Z
2018-10-01
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://dx.doi.org/10.1016/j.optmat.2018.08.002
Optical Materials, v. 84, p. 843-851.
0925-3467
http://hdl.handle.net/11449/171319
10.1016/j.optmat.2018.08.002
2-s2.0-85051274576
2-s2.0-85051274576.pdf
url http://dx.doi.org/10.1016/j.optmat.2018.08.002
http://hdl.handle.net/11449/171319
identifier_str_mv Optical Materials, v. 84, p. 843-851.
0925-3467
10.1016/j.optmat.2018.08.002
2-s2.0-85051274576
2-s2.0-85051274576.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Optical Materials
0,592
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 843-851
application/pdf
dc.source.none.fl_str_mv Scopus
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_ 1808129165662093312

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