Poole-Frenkel effect in amorphous poly(p-phenylene sulfide)
Autor(a) principal: | |
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Data de Publicação: | 1996 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1002/(SICI)1099-0488(199603)34:4<623 http://hdl.handle.net/11449/219191 |
Resumo: | The conductivity of poly(p-phenylene sulfide) (PPS) amorphous samples sandwiched between metallic electrodes has been studied as a function of applied voltage, temperature, and electrode material. The voltage (U) dependence of the currents for electric fields within the range 103-106 V/cm exhibits exp βU1/2 behavior with β = βSchottky below the glass transition temperature (Tg ≅ 90°C), and β = βPoole-Frenkel above Tg. Coordinated temperature measurements of dc currents with different metallic contacts and thermally stimulated currents (TSC) indicate, however, that the conductivity at T < Tg is consistent with the so-called anomalous Poole-Frenkel effect rather than the Schottky effect. Consequently, the p-type conductivity in amorphous PPS is proposed to be a bulk-limited process due to ionization of two different types of acceptor centers in the presence of neutral hole traps. © 1996 John Wiley & Sons, Inc. |
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Poole-Frenkel effect in amorphous poly(p-phenylene sulfide)Electrical conductivity of poly(p-phenylene sulfide)Poly(p-phenylene sulfide)Poole-Frenkel effectThe conductivity of poly(p-phenylene sulfide) (PPS) amorphous samples sandwiched between metallic electrodes has been studied as a function of applied voltage, temperature, and electrode material. The voltage (U) dependence of the currents for electric fields within the range 103-106 V/cm exhibits exp βU1/2 behavior with β = βSchottky below the glass transition temperature (Tg ≅ 90°C), and β = βPoole-Frenkel above Tg. Coordinated temperature measurements of dc currents with different metallic contacts and thermally stimulated currents (TSC) indicate, however, that the conductivity at T < Tg is consistent with the so-called anomalous Poole-Frenkel effect rather than the Schottky effect. Consequently, the p-type conductivity in amorphous PPS is proposed to be a bulk-limited process due to ionization of two different types of acceptor centers in the presence of neutral hole traps. © 1996 John Wiley & Sons, Inc.Inst. de Fis. e Quim. de S. Carlos Universidade de São Paulo, São Carlos, SP-13.560-970Departamento de Ciencias Faculdade de Engenharia UNESP, Ilha Solteira, SP-15378Ist. Fotochimica Radiazioni d'A. C.N.R. Bologna, I-40129 BolognaIstituto FRAE del CNR, 40129 BolognaDepartment of Molecular Physics Tech. University of Gdańsk, 80-952 GdańskDepartamento de Ciencias Faculdade de Engenharia UNESP, Ilha Solteira, SP-15378Universidade de São Paulo (USP)Universidade Estadual Paulista (UNESP)C.N.R. BolognaIstituto FRAE del CNRTech. University of GdańskCampos, M.Cavalcante, E. M. [UNESP]Kalinowski, J.2022-04-28T18:54:09Z2022-04-28T18:54:09Z1996-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article623-629http://dx.doi.org/10.1002/(SICI)1099-0488(199603)34:4<623Journal of Polymer Science, Part B: Polymer Physics, v. 34, n. 4, p. 623-629, 1996.0887-6266http://hdl.handle.net/11449/21919110.1002/(SICI)1099-0488(199603)34:4<6232-s2.0-0030105555Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Polymer Science, Part B: Polymer Physicsinfo:eu-repo/semantics/openAccess2022-04-28T18:54:09Zoai:repositorio.unesp.br:11449/219191Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:13:10.560713Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Poole-Frenkel effect in amorphous poly(p-phenylene sulfide) |
title |
Poole-Frenkel effect in amorphous poly(p-phenylene sulfide) |
spellingShingle |
Poole-Frenkel effect in amorphous poly(p-phenylene sulfide) Campos, M. Electrical conductivity of poly(p-phenylene sulfide) Poly(p-phenylene sulfide) Poole-Frenkel effect |
title_short |
Poole-Frenkel effect in amorphous poly(p-phenylene sulfide) |
title_full |
Poole-Frenkel effect in amorphous poly(p-phenylene sulfide) |
title_fullStr |
Poole-Frenkel effect in amorphous poly(p-phenylene sulfide) |
title_full_unstemmed |
Poole-Frenkel effect in amorphous poly(p-phenylene sulfide) |
title_sort |
Poole-Frenkel effect in amorphous poly(p-phenylene sulfide) |
author |
Campos, M. |
author_facet |
Campos, M. Cavalcante, E. M. [UNESP] Kalinowski, J. |
author_role |
author |
author2 |
Cavalcante, E. M. [UNESP] Kalinowski, J. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (UNESP) C.N.R. Bologna Istituto FRAE del CNR Tech. University of Gdańsk |
dc.contributor.author.fl_str_mv |
Campos, M. Cavalcante, E. M. [UNESP] Kalinowski, J. |
dc.subject.por.fl_str_mv |
Electrical conductivity of poly(p-phenylene sulfide) Poly(p-phenylene sulfide) Poole-Frenkel effect |
topic |
Electrical conductivity of poly(p-phenylene sulfide) Poly(p-phenylene sulfide) Poole-Frenkel effect |
description |
The conductivity of poly(p-phenylene sulfide) (PPS) amorphous samples sandwiched between metallic electrodes has been studied as a function of applied voltage, temperature, and electrode material. The voltage (U) dependence of the currents for electric fields within the range 103-106 V/cm exhibits exp βU1/2 behavior with β = βSchottky below the glass transition temperature (Tg ≅ 90°C), and β = βPoole-Frenkel above Tg. Coordinated temperature measurements of dc currents with different metallic contacts and thermally stimulated currents (TSC) indicate, however, that the conductivity at T < Tg is consistent with the so-called anomalous Poole-Frenkel effect rather than the Schottky effect. Consequently, the p-type conductivity in amorphous PPS is proposed to be a bulk-limited process due to ionization of two different types of acceptor centers in the presence of neutral hole traps. © 1996 John Wiley & Sons, Inc. |
publishDate |
1996 |
dc.date.none.fl_str_mv |
1996-01-01 2022-04-28T18:54:09Z 2022-04-28T18:54:09Z |
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/10.1002/(SICI)1099-0488(199603)34:4<623 Journal of Polymer Science, Part B: Polymer Physics, v. 34, n. 4, p. 623-629, 1996. 0887-6266 http://hdl.handle.net/11449/219191 10.1002/(SICI)1099-0488(199603)34:4<623 2-s2.0-0030105555 |
url |
http://dx.doi.org/10.1002/(SICI)1099-0488(199603)34:4<623 http://hdl.handle.net/11449/219191 |
identifier_str_mv |
Journal of Polymer Science, Part B: Polymer Physics, v. 34, n. 4, p. 623-629, 1996. 0887-6266 10.1002/(SICI)1099-0488(199603)34:4<623 2-s2.0-0030105555 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Polymer Science, Part B: Polymer Physics |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
623-629 |
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_ |
1808129299284230144 |