Electrical properties of electrochemically doped organic semiconductors using light-emitting electrochemical cells
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s10008-016-3219-2 http://hdl.handle.net/11449/172866 |
Resumo: | We present a study of the electrical properties of electrochemically doped conjugated polymers using polymeric light-emitting electrochemical cells (PLECs) and interpreting the results according to a phenomenological model (PM) which assumes that, above the device turn-on voltage, the bulk transport properties of the doped organic semiconductor are responsible for the main contribution to the whole device conductivity. To confirm the predictions of this model, the dependence of the conductivity of PLECs with different parameters is evaluated and compared with the behavior expected for a doped semiconducting polymeric material. The organic semiconductor doping level, the blend concentration of organic semiconducting molecules, the device thickness, the charge carrier mobility, and the temperature are the parameters varied to perform this analysis. We observed that the device conductivity is independent of the active layer thickness, weakly dependent on the temperature, but strongly dependent on the semiconductor doping level, on the semiconductor fraction in the blend, and on the intrinsic charge carrier mobility. These results were well described by the variable range hopping (VRH) model, which has been widely employed to describe the charge transport in doped semiconducting polymeric materials, confirming the prediction of the phenomenological model. The current analysis demonstrates that PLECs are a suitable system for studying, in situ, the electrochemical doping of semiconducting polymers, permitting the evaluation of material properties as, for instance, the density of electronic charge carriers (and, consequently, the ionic charge carrier concentration) necessary to achieve the maximum electrochemical doping level of the organic semiconductor. |
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Electrical properties of electrochemically doped organic semiconductors using light-emitting electrochemical cellsElectrical propertiesElectrochemical dopingLight-emitting electrochemical cellsOrganic electronicsSemiconducting polymersWe present a study of the electrical properties of electrochemically doped conjugated polymers using polymeric light-emitting electrochemical cells (PLECs) and interpreting the results according to a phenomenological model (PM) which assumes that, above the device turn-on voltage, the bulk transport properties of the doped organic semiconductor are responsible for the main contribution to the whole device conductivity. To confirm the predictions of this model, the dependence of the conductivity of PLECs with different parameters is evaluated and compared with the behavior expected for a doped semiconducting polymeric material. The organic semiconductor doping level, the blend concentration of organic semiconducting molecules, the device thickness, the charge carrier mobility, and the temperature are the parameters varied to perform this analysis. We observed that the device conductivity is independent of the active layer thickness, weakly dependent on the temperature, but strongly dependent on the semiconductor doping level, on the semiconductor fraction in the blend, and on the intrinsic charge carrier mobility. These results were well described by the variable range hopping (VRH) model, which has been widely employed to describe the charge transport in doped semiconducting polymeric materials, confirming the prediction of the phenomenological model. The current analysis demonstrates that PLECs are a suitable system for studying, in situ, the electrochemical doping of semiconducting polymers, permitting the evaluation of material properties as, for instance, the density of electronic charge carriers (and, consequently, the ionic charge carrier concentration) necessary to achieve the maximum electrochemical doping level of the organic semiconductor.Departamento de Física Instituto de Geociências e Ciências Exatas Universidade Estadual Paulista – UNESPInstituto de Física de São Carlos Universidade de São PauloDepartamento de Física Instituto de Biociências Letras e Ciências Exatas Universidade Estadual Paulista – UNESPDepartamento de Física Instituto de Geociências e Ciências Exatas Universidade Estadual Paulista – UNESPDepartamento de Física Instituto de Biociências Letras e Ciências Exatas Universidade Estadual Paulista – UNESPUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Gozzi, G. [UNESP]Cagnani, L. D.Faria, R. M.Santos, L. F. [UNESP]2018-12-11T17:02:29Z2018-12-11T17:02:29Z2016-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article2127-2133application/pdfhttp://dx.doi.org/10.1007/s10008-016-3219-2Journal of Solid State Electrochemistry, v. 20, n. 8, p. 2127-2133, 2016.1432-8488http://hdl.handle.net/11449/17286610.1007/s10008-016-3219-22-s2.0-849643166742-s2.0-84964316674.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Solid State Electrochemistry0,661info:eu-repo/semantics/openAccess2023-10-06T06:05:03Zoai:repositorio.unesp.br:11449/172866Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-06T06:05:03Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Electrical properties of electrochemically doped organic semiconductors using light-emitting electrochemical cells |
title |
Electrical properties of electrochemically doped organic semiconductors using light-emitting electrochemical cells |
spellingShingle |
Electrical properties of electrochemically doped organic semiconductors using light-emitting electrochemical cells Gozzi, G. [UNESP] Electrical properties Electrochemical doping Light-emitting electrochemical cells Organic electronics Semiconducting polymers |
title_short |
Electrical properties of electrochemically doped organic semiconductors using light-emitting electrochemical cells |
title_full |
Electrical properties of electrochemically doped organic semiconductors using light-emitting electrochemical cells |
title_fullStr |
Electrical properties of electrochemically doped organic semiconductors using light-emitting electrochemical cells |
title_full_unstemmed |
Electrical properties of electrochemically doped organic semiconductors using light-emitting electrochemical cells |
title_sort |
Electrical properties of electrochemically doped organic semiconductors using light-emitting electrochemical cells |
author |
Gozzi, G. [UNESP] |
author_facet |
Gozzi, G. [UNESP] Cagnani, L. D. Faria, R. M. Santos, L. F. [UNESP] |
author_role |
author |
author2 |
Cagnani, L. D. Faria, R. M. Santos, L. F. [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Gozzi, G. [UNESP] Cagnani, L. D. Faria, R. M. Santos, L. F. [UNESP] |
dc.subject.por.fl_str_mv |
Electrical properties Electrochemical doping Light-emitting electrochemical cells Organic electronics Semiconducting polymers |
topic |
Electrical properties Electrochemical doping Light-emitting electrochemical cells Organic electronics Semiconducting polymers |
description |
We present a study of the electrical properties of electrochemically doped conjugated polymers using polymeric light-emitting electrochemical cells (PLECs) and interpreting the results according to a phenomenological model (PM) which assumes that, above the device turn-on voltage, the bulk transport properties of the doped organic semiconductor are responsible for the main contribution to the whole device conductivity. To confirm the predictions of this model, the dependence of the conductivity of PLECs with different parameters is evaluated and compared with the behavior expected for a doped semiconducting polymeric material. The organic semiconductor doping level, the blend concentration of organic semiconducting molecules, the device thickness, the charge carrier mobility, and the temperature are the parameters varied to perform this analysis. We observed that the device conductivity is independent of the active layer thickness, weakly dependent on the temperature, but strongly dependent on the semiconductor doping level, on the semiconductor fraction in the blend, and on the intrinsic charge carrier mobility. These results were well described by the variable range hopping (VRH) model, which has been widely employed to describe the charge transport in doped semiconducting polymeric materials, confirming the prediction of the phenomenological model. The current analysis demonstrates that PLECs are a suitable system for studying, in situ, the electrochemical doping of semiconducting polymers, permitting the evaluation of material properties as, for instance, the density of electronic charge carriers (and, consequently, the ionic charge carrier concentration) necessary to achieve the maximum electrochemical doping level of the organic semiconductor. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-08-01 2018-12-11T17:02:29Z 2018-12-11T17:02:29Z |
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/10.1007/s10008-016-3219-2 Journal of Solid State Electrochemistry, v. 20, n. 8, p. 2127-2133, 2016. 1432-8488 http://hdl.handle.net/11449/172866 10.1007/s10008-016-3219-2 2-s2.0-84964316674 2-s2.0-84964316674.pdf |
url |
http://dx.doi.org/10.1007/s10008-016-3219-2 http://hdl.handle.net/11449/172866 |
identifier_str_mv |
Journal of Solid State Electrochemistry, v. 20, n. 8, p. 2127-2133, 2016. 1432-8488 10.1007/s10008-016-3219-2 2-s2.0-84964316674 2-s2.0-84964316674.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Solid State Electrochemistry 0,661 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
2127-2133 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_ |
1797789308262809600 |