Understanding the Performance of a Nanocomposite Based on a Conjugated Azo-Polymer and Reduced Graphene Oxide with Photoelectrically Switchable Properties by Analyzing the Potential Profile during Photocurrent Generation
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1002/macp.202000225 http://hdl.handle.net/11449/199298 |
Resumo: | This work describes the photoelectrochemical properties of devices coated with poly(azo-Bismarck Brown R) and the nanocomposite poly(azo-Bismarck Brown R)/reduced graphene oxide. Chronoamperometric methods with pulsed light are applied to the polymer surfaces of poly(azo-Bismarck R) and poly(azo-Bismarck Brown R)/rGO nanocomposites at two applied potentials (corresponding to the reduced and oxidized polymer forms) to obtain information on the photocurrent in a short response time. The results indicate that the photoactivity of the nanomaterial depends on the oxidation state of the azo-polymer and its chemical structure. The carrier mobility of the material is affected by the applied potential profile and consequently by the isomerism of the polymer backbone. This behavior explains the photoelectrochemical performance of the nanocomposite material. The photoresponsiveness of the semiconducting hybrid material with light-switchable conductance is promising for applications in photoelectrochemical switches and molecular switching devices. |
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Repositório Institucional da UNESP |
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Understanding the Performance of a Nanocomposite Based on a Conjugated Azo-Polymer and Reduced Graphene Oxide with Photoelectrically Switchable Properties by Analyzing the Potential Profile during Photocurrent Generation2D layered materialsconducting polymerdriven-lightnanocompositeresistive switching propertiesThis work describes the photoelectrochemical properties of devices coated with poly(azo-Bismarck Brown R) and the nanocomposite poly(azo-Bismarck Brown R)/reduced graphene oxide. Chronoamperometric methods with pulsed light are applied to the polymer surfaces of poly(azo-Bismarck R) and poly(azo-Bismarck Brown R)/rGO nanocomposites at two applied potentials (corresponding to the reduced and oxidized polymer forms) to obtain information on the photocurrent in a short response time. The results indicate that the photoactivity of the nanomaterial depends on the oxidation state of the azo-polymer and its chemical structure. The carrier mobility of the material is affected by the applied potential profile and consequently by the isomerism of the polymer backbone. This behavior explains the photoelectrochemical performance of the nanocomposite material. The photoresponsiveness of the semiconducting hybrid material with light-switchable conductance is promising for applications in photoelectrochemical switches and molecular switching devices.Department of Chemistry and Biochemistry School of Science and Technology – Sao Paulo State University (UNESP), Rua Roberto Simonsen 305Department of Chemistry and Biochemistry School of Science and Technology – Sao Paulo State University (UNESP), Rua Roberto Simonsen 305Universidade Estadual Paulista (Unesp)Pacheco, Jéssica Crivelaro [UNESP]Olean-Oliveira, André [UNESP]Teixeira, Marcos F. S. [UNESP]2020-12-12T01:35:59Z2020-12-12T01:35:59Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1002/macp.202000225Macromolecular Chemistry and Physics.1521-39351022-1352http://hdl.handle.net/11449/19929810.1002/macp.2020002252-s2.0-85089861759Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMacromolecular Chemistry and Physicsinfo:eu-repo/semantics/openAccess2021-10-23T07:00:30Zoai:repositorio.unesp.br:11449/199298Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T07:00:30Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Understanding the Performance of a Nanocomposite Based on a Conjugated Azo-Polymer and Reduced Graphene Oxide with Photoelectrically Switchable Properties by Analyzing the Potential Profile during Photocurrent Generation |
title |
Understanding the Performance of a Nanocomposite Based on a Conjugated Azo-Polymer and Reduced Graphene Oxide with Photoelectrically Switchable Properties by Analyzing the Potential Profile during Photocurrent Generation |
spellingShingle |
Understanding the Performance of a Nanocomposite Based on a Conjugated Azo-Polymer and Reduced Graphene Oxide with Photoelectrically Switchable Properties by Analyzing the Potential Profile during Photocurrent Generation Pacheco, Jéssica Crivelaro [UNESP] 2D layered materials conducting polymer driven-light nanocomposite resistive switching properties |
title_short |
Understanding the Performance of a Nanocomposite Based on a Conjugated Azo-Polymer and Reduced Graphene Oxide with Photoelectrically Switchable Properties by Analyzing the Potential Profile during Photocurrent Generation |
title_full |
Understanding the Performance of a Nanocomposite Based on a Conjugated Azo-Polymer and Reduced Graphene Oxide with Photoelectrically Switchable Properties by Analyzing the Potential Profile during Photocurrent Generation |
title_fullStr |
Understanding the Performance of a Nanocomposite Based on a Conjugated Azo-Polymer and Reduced Graphene Oxide with Photoelectrically Switchable Properties by Analyzing the Potential Profile during Photocurrent Generation |
title_full_unstemmed |
Understanding the Performance of a Nanocomposite Based on a Conjugated Azo-Polymer and Reduced Graphene Oxide with Photoelectrically Switchable Properties by Analyzing the Potential Profile during Photocurrent Generation |
title_sort |
Understanding the Performance of a Nanocomposite Based on a Conjugated Azo-Polymer and Reduced Graphene Oxide with Photoelectrically Switchable Properties by Analyzing the Potential Profile during Photocurrent Generation |
author |
Pacheco, Jéssica Crivelaro [UNESP] |
author_facet |
Pacheco, Jéssica Crivelaro [UNESP] Olean-Oliveira, André [UNESP] Teixeira, Marcos F. S. [UNESP] |
author_role |
author |
author2 |
Olean-Oliveira, André [UNESP] Teixeira, Marcos F. S. [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Pacheco, Jéssica Crivelaro [UNESP] Olean-Oliveira, André [UNESP] Teixeira, Marcos F. S. [UNESP] |
dc.subject.por.fl_str_mv |
2D layered materials conducting polymer driven-light nanocomposite resistive switching properties |
topic |
2D layered materials conducting polymer driven-light nanocomposite resistive switching properties |
description |
This work describes the photoelectrochemical properties of devices coated with poly(azo-Bismarck Brown R) and the nanocomposite poly(azo-Bismarck Brown R)/reduced graphene oxide. Chronoamperometric methods with pulsed light are applied to the polymer surfaces of poly(azo-Bismarck R) and poly(azo-Bismarck Brown R)/rGO nanocomposites at two applied potentials (corresponding to the reduced and oxidized polymer forms) to obtain information on the photocurrent in a short response time. The results indicate that the photoactivity of the nanomaterial depends on the oxidation state of the azo-polymer and its chemical structure. The carrier mobility of the material is affected by the applied potential profile and consequently by the isomerism of the polymer backbone. This behavior explains the photoelectrochemical performance of the nanocomposite material. The photoresponsiveness of the semiconducting hybrid material with light-switchable conductance is promising for applications in photoelectrochemical switches and molecular switching devices. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T01:35:59Z 2020-12-12T01:35:59Z 2020-01-01 |
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/10.1002/macp.202000225 Macromolecular Chemistry and Physics. 1521-3935 1022-1352 http://hdl.handle.net/11449/199298 10.1002/macp.202000225 2-s2.0-85089861759 |
url |
http://dx.doi.org/10.1002/macp.202000225 http://hdl.handle.net/11449/199298 |
identifier_str_mv |
Macromolecular Chemistry and Physics. 1521-3935 1022-1352 10.1002/macp.202000225 2-s2.0-85089861759 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Macromolecular Chemistry and Physics |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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_ |
1799965421686751232 |