Polypyrrole/ionic liquid/Au nanoparticle counter-electrodes for dye-sensitized solar cells : improving charge-transfer resistance at the CE/electrolyte interface

Detalhes bibliográficos
Autor(a) principal: Loguercio, Lara Fernandes
Data de Publicação: 2019
Outros Autores: Matos, Carolina Ferreira de, Oliveira, Matheus Costa de, Marin, Graciane, Khan, Sherdil, Dupont, Jairton, Teixeira, Sergio Ribeiro, Balzaretti, Naira Maria, Ferreira, Jacqueline, Santos, Marcos José Leite
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/249551
Resumo: To provide a viable alternative for counter electrodes used in dye sensitized solar cells, polypyrrole (PPy) based films have been synthesized via electrochemical deposition in the presence of the ionic liquid 1-butyl-3-methylimidazolium bis-(trifluoromethanesulfonyl) imidate (NTf2) and incorporated with gold nanoparticles (Aunanop). The films were analyzed by SEM, UV-Vis-NIR, Raman, Electrochemical impedance spectroscopy, Cyclic voltammetry and Conductivity measurements. The presence of the ionic liquid is found to result in a more conductive film, to improve catalytic reduction of I3 − and the electrochemical reversibility of the electrode. In addition to increase conductivity, impedance spectroscopy has shown that incorporating Aunanop in the PPy/NTf2 film helps improving the interfacial charge transportation, the electrocatalytic properties and solar energy conversion efficiency. DSSCs assembled with PPy based CE presented nearly the same J-V characteristic parameters as observed from conventional Pt based device
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spelling Loguercio, Lara FernandesMatos, Carolina Ferreira deOliveira, Matheus Costa deMarin, GracianeKhan, SherdilDupont, JairtonTeixeira, Sergio RibeiroBalzaretti, Naira MariaFerreira, JacquelineSantos, Marcos José Leite2022-10-03T04:48:37Z20190013-4651http://hdl.handle.net/10183/249551001105804To provide a viable alternative for counter electrodes used in dye sensitized solar cells, polypyrrole (PPy) based films have been synthesized via electrochemical deposition in the presence of the ionic liquid 1-butyl-3-methylimidazolium bis-(trifluoromethanesulfonyl) imidate (NTf2) and incorporated with gold nanoparticles (Aunanop). The films were analyzed by SEM, UV-Vis-NIR, Raman, Electrochemical impedance spectroscopy, Cyclic voltammetry and Conductivity measurements. The presence of the ionic liquid is found to result in a more conductive film, to improve catalytic reduction of I3 − and the electrochemical reversibility of the electrode. In addition to increase conductivity, impedance spectroscopy has shown that incorporating Aunanop in the PPy/NTf2 film helps improving the interfacial charge transportation, the electrocatalytic properties and solar energy conversion efficiency. DSSCs assembled with PPy based CE presented nearly the same J-V characteristic parameters as observed from conventional Pt based deviceapplication/pdfengJournal of the Electrochemical Society. Hooksett. Vol. 166, no. 5 (Jan. 2019), p. H3188-H3194Celulas solares fotoquimicaConversão fotovoltaicaSemicondutoresFotoeletroquímicaConversão de energiaLíquido iônicoPolipirrolNanopartículasPolypyrrole/ionic liquid/Au nanoparticle counter-electrodes for dye-sensitized solar cells : improving charge-transfer resistance at the CE/electrolyte interfaceEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001105804.pdf.txt001105804.pdf.txtExtracted Texttext/plain33355http://www.lume.ufrgs.br/bitstream/10183/249551/2/001105804.pdf.txt1086bba6d24e990a7727e24f66fd8023MD52ORIGINAL001105804.pdfTexto completo (inglês)application/pdf2036612http://www.lume.ufrgs.br/bitstream/10183/249551/1/001105804.pdf228882dd42ebf8d904119726f6272dddMD5110183/2495512024-01-10 04:35:39.2559oai:www.lume.ufrgs.br:10183/249551Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-01-10T06:35:39Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Polypyrrole/ionic liquid/Au nanoparticle counter-electrodes for dye-sensitized solar cells : improving charge-transfer resistance at the CE/electrolyte interface
title Polypyrrole/ionic liquid/Au nanoparticle counter-electrodes for dye-sensitized solar cells : improving charge-transfer resistance at the CE/electrolyte interface
spellingShingle Polypyrrole/ionic liquid/Au nanoparticle counter-electrodes for dye-sensitized solar cells : improving charge-transfer resistance at the CE/electrolyte interface
Loguercio, Lara Fernandes
Celulas solares fotoquimica
Conversão fotovoltaica
Semicondutores
Fotoeletroquímica
Conversão de energia
Líquido iônico
Polipirrol
Nanopartículas
title_short Polypyrrole/ionic liquid/Au nanoparticle counter-electrodes for dye-sensitized solar cells : improving charge-transfer resistance at the CE/electrolyte interface
title_full Polypyrrole/ionic liquid/Au nanoparticle counter-electrodes for dye-sensitized solar cells : improving charge-transfer resistance at the CE/electrolyte interface
title_fullStr Polypyrrole/ionic liquid/Au nanoparticle counter-electrodes for dye-sensitized solar cells : improving charge-transfer resistance at the CE/electrolyte interface
title_full_unstemmed Polypyrrole/ionic liquid/Au nanoparticle counter-electrodes for dye-sensitized solar cells : improving charge-transfer resistance at the CE/electrolyte interface
title_sort Polypyrrole/ionic liquid/Au nanoparticle counter-electrodes for dye-sensitized solar cells : improving charge-transfer resistance at the CE/electrolyte interface
author Loguercio, Lara Fernandes
author_facet Loguercio, Lara Fernandes
Matos, Carolina Ferreira de
Oliveira, Matheus Costa de
Marin, Graciane
Khan, Sherdil
Dupont, Jairton
Teixeira, Sergio Ribeiro
Balzaretti, Naira Maria
Ferreira, Jacqueline
Santos, Marcos José Leite
author_role author
author2 Matos, Carolina Ferreira de
Oliveira, Matheus Costa de
Marin, Graciane
Khan, Sherdil
Dupont, Jairton
Teixeira, Sergio Ribeiro
Balzaretti, Naira Maria
Ferreira, Jacqueline
Santos, Marcos José Leite
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Loguercio, Lara Fernandes
Matos, Carolina Ferreira de
Oliveira, Matheus Costa de
Marin, Graciane
Khan, Sherdil
Dupont, Jairton
Teixeira, Sergio Ribeiro
Balzaretti, Naira Maria
Ferreira, Jacqueline
Santos, Marcos José Leite
dc.subject.por.fl_str_mv Celulas solares fotoquimica
Conversão fotovoltaica
Semicondutores
Fotoeletroquímica
Conversão de energia
Líquido iônico
Polipirrol
Nanopartículas
topic Celulas solares fotoquimica
Conversão fotovoltaica
Semicondutores
Fotoeletroquímica
Conversão de energia
Líquido iônico
Polipirrol
Nanopartículas
description To provide a viable alternative for counter electrodes used in dye sensitized solar cells, polypyrrole (PPy) based films have been synthesized via electrochemical deposition in the presence of the ionic liquid 1-butyl-3-methylimidazolium bis-(trifluoromethanesulfonyl) imidate (NTf2) and incorporated with gold nanoparticles (Aunanop). The films were analyzed by SEM, UV-Vis-NIR, Raman, Electrochemical impedance spectroscopy, Cyclic voltammetry and Conductivity measurements. The presence of the ionic liquid is found to result in a more conductive film, to improve catalytic reduction of I3 − and the electrochemical reversibility of the electrode. In addition to increase conductivity, impedance spectroscopy has shown that incorporating Aunanop in the PPy/NTf2 film helps improving the interfacial charge transportation, the electrocatalytic properties and solar energy conversion efficiency. DSSCs assembled with PPy based CE presented nearly the same J-V characteristic parameters as observed from conventional Pt based device
publishDate 2019
dc.date.issued.fl_str_mv 2019
dc.date.accessioned.fl_str_mv 2022-10-03T04:48:37Z
dc.type.driver.fl_str_mv Estrangeiro
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://hdl.handle.net/10183/249551
dc.identifier.issn.pt_BR.fl_str_mv 0013-4651
dc.identifier.nrb.pt_BR.fl_str_mv 001105804
identifier_str_mv 0013-4651
001105804
url http://hdl.handle.net/10183/249551
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Journal of the Electrochemical Society. Hooksett. Vol. 166, no. 5 (Jan. 2019), p. H3188-H3194
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRGS
instname:Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
instname_str Universidade Federal do Rio Grande do Sul (UFRGS)
instacron_str UFRGS
institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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