Study of the Nanostructure Effect on Polyalkylthiophene Derivatives Films Using Impedance Spectroscopy
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Materials research (São Carlos. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392017000400874 |
Resumo: | In this paper, devices fabricated with a diode-like structure (electrode/polymer/electrode) from spin-coated and nanostructured (Langmuir-Schaefer) films of polythiophene derivatives were characterized by impedance spectroscopy and studied by theoretical fitting to reach a better understanding of the physical processes in the devices. The materials used for this research were the polyalkylthiophene (P3AT) derivatives poly(3-butylthiophene) (P3BT), poly(3-hexylthiophene) (P3HT), poly(3-octylthiophene) (P3OT) and poly(3-decylthiophene) (P3DT). Electrical measurements were performed from 1 Hz to 1 MHz (100 mV ac) while increasing the dc bias in the range from 0 to 2.5 V. The fittings of the experimental results were performed using equivalent circuits. By plotting the theoretical and experimental spectra on a single graph, it was possible to obtain information related to the film morphology, interfacial effects, resistance, capacitance and conductivity of the polymer, thereby enhancing the understanding of this particular type of device. Among the P3AT films, those grown by the Langmuir-Schaefer technique showed higher electrical conductivity, with the only exception being that of P3BT. |
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Study of the Nanostructure Effect on Polyalkylthiophene Derivatives Films Using Impedance Spectroscopypolythiophenenanostructured filmimpedance spectroscopyIn this paper, devices fabricated with a diode-like structure (electrode/polymer/electrode) from spin-coated and nanostructured (Langmuir-Schaefer) films of polythiophene derivatives were characterized by impedance spectroscopy and studied by theoretical fitting to reach a better understanding of the physical processes in the devices. The materials used for this research were the polyalkylthiophene (P3AT) derivatives poly(3-butylthiophene) (P3BT), poly(3-hexylthiophene) (P3HT), poly(3-octylthiophene) (P3OT) and poly(3-decylthiophene) (P3DT). Electrical measurements were performed from 1 Hz to 1 MHz (100 mV ac) while increasing the dc bias in the range from 0 to 2.5 V. The fittings of the experimental results were performed using equivalent circuits. By plotting the theoretical and experimental spectra on a single graph, it was possible to obtain information related to the film morphology, interfacial effects, resistance, capacitance and conductivity of the polymer, thereby enhancing the understanding of this particular type of device. Among the P3AT films, those grown by the Langmuir-Schaefer technique showed higher electrical conductivity, with the only exception being that of P3BT.ABM, ABC, ABPol2017-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392017000400874Materials Research v.20 n.4 2017reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2016-0670info:eu-repo/semantics/openAccessCitolino,Lucas Vinicius de LimaBraunger,Maria LuisaOliveira,Vinícius Jessé RodriguesOlivati,Clarissa A.eng2017-09-05T00:00:00Zoai:scielo:S1516-14392017000400874Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2017-09-05T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
Study of the Nanostructure Effect on Polyalkylthiophene Derivatives Films Using Impedance Spectroscopy |
title |
Study of the Nanostructure Effect on Polyalkylthiophene Derivatives Films Using Impedance Spectroscopy |
spellingShingle |
Study of the Nanostructure Effect on Polyalkylthiophene Derivatives Films Using Impedance Spectroscopy Citolino,Lucas Vinicius de Lima polythiophene nanostructured film impedance spectroscopy |
title_short |
Study of the Nanostructure Effect on Polyalkylthiophene Derivatives Films Using Impedance Spectroscopy |
title_full |
Study of the Nanostructure Effect on Polyalkylthiophene Derivatives Films Using Impedance Spectroscopy |
title_fullStr |
Study of the Nanostructure Effect on Polyalkylthiophene Derivatives Films Using Impedance Spectroscopy |
title_full_unstemmed |
Study of the Nanostructure Effect on Polyalkylthiophene Derivatives Films Using Impedance Spectroscopy |
title_sort |
Study of the Nanostructure Effect on Polyalkylthiophene Derivatives Films Using Impedance Spectroscopy |
author |
Citolino,Lucas Vinicius de Lima |
author_facet |
Citolino,Lucas Vinicius de Lima Braunger,Maria Luisa Oliveira,Vinícius Jessé Rodrigues Olivati,Clarissa A. |
author_role |
author |
author2 |
Braunger,Maria Luisa Oliveira,Vinícius Jessé Rodrigues Olivati,Clarissa A. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Citolino,Lucas Vinicius de Lima Braunger,Maria Luisa Oliveira,Vinícius Jessé Rodrigues Olivati,Clarissa A. |
dc.subject.por.fl_str_mv |
polythiophene nanostructured film impedance spectroscopy |
topic |
polythiophene nanostructured film impedance spectroscopy |
description |
In this paper, devices fabricated with a diode-like structure (electrode/polymer/electrode) from spin-coated and nanostructured (Langmuir-Schaefer) films of polythiophene derivatives were characterized by impedance spectroscopy and studied by theoretical fitting to reach a better understanding of the physical processes in the devices. The materials used for this research were the polyalkylthiophene (P3AT) derivatives poly(3-butylthiophene) (P3BT), poly(3-hexylthiophene) (P3HT), poly(3-octylthiophene) (P3OT) and poly(3-decylthiophene) (P3DT). Electrical measurements were performed from 1 Hz to 1 MHz (100 mV ac) while increasing the dc bias in the range from 0 to 2.5 V. The fittings of the experimental results were performed using equivalent circuits. By plotting the theoretical and experimental spectra on a single graph, it was possible to obtain information related to the film morphology, interfacial effects, resistance, capacitance and conductivity of the polymer, thereby enhancing the understanding of this particular type of device. Among the P3AT films, those grown by the Langmuir-Schaefer technique showed higher electrical conductivity, with the only exception being that of P3BT. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-08-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392017000400874 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392017000400874 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1980-5373-mr-2016-0670 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
ABM, ABC, ABPol |
publisher.none.fl_str_mv |
ABM, ABC, ABPol |
dc.source.none.fl_str_mv |
Materials Research v.20 n.4 2017 reponame:Materials research (São Carlos. Online) instname:Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL |
instname_str |
Universidade Federal de São Carlos (UFSCAR) |
instacron_str |
ABM ABC ABPOL |
institution |
ABM ABC ABPOL |
reponame_str |
Materials research (São Carlos. Online) |
collection |
Materials research (São Carlos. Online) |
repository.name.fl_str_mv |
Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR) |
repository.mail.fl_str_mv |
dedz@power.ufscar.br |
_version_ |
1754212670668537856 |