Coupling gold nanoparticles to Dye-Sensitized Solar Cells for an increased efficiency

Detalhes bibliográficos
Autor(a) principal: Truta, Liliana A.A.N.A.
Data de Publicação: 2019
Outros Autores: Pereira, Sónia, Hora, Carolina, Trindade, Tito, Sales, M. Goreti F.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10773/36966
Resumo: New approaches for coupling Au NPs to the photoanode of dye sensitized solar cells (DSSCs) were proposed herein, aiming to improve the typical energy conversion efficiency of these cells. For this purpose, colloidal Au NPs with different particles sizes, ∼5 nm and ∼22 nm, were chemically synthesized and attached (i) directly to titanium dioxide (TiO2) or (ii) to TiO2 surface modified with siliceous shells enriched in dithiocarbamate moieties (SiO2/SiDTC). Photoanodes composed by films of TiO2 anatase, TiO2@Au NPs (∼5 nm and ∼22 nm), or TiO2 functionalized with SiO2/SiDTC, loaded with colloidal Au NPs, were made. DSSCs were set-up in a typical sandwich configuration, using the photoanode, a Pt counter electrode, and an iodide electrolyte solution (I−/I3−). In general, a relevant contribution in the plasmonic DSSC performance was evidenced by using Au NPs of ∼22 nm loaded in different amounts 23.9 wt%, 31.0 wt% and 44.0 wt%. Photoanodes composed by 23.9% of Au yielded an increment of 14.40% in photocurrent and of 11.21% in the overall power conversion efficiency (PCE), when compared to the conventional one. In turn, the new strategy used in the chemical modification of the conventional photoanodes with dithiocarbamate groups showed also a significant improvement of the DSSC parameters.
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spelling Coupling gold nanoparticles to Dye-Sensitized Solar Cells for an increased efficiencyGold nanoparticlesPlasmonicsDye-sensitized solar cellsSilica gelsTitanium dioxideNew approaches for coupling Au NPs to the photoanode of dye sensitized solar cells (DSSCs) were proposed herein, aiming to improve the typical energy conversion efficiency of these cells. For this purpose, colloidal Au NPs with different particles sizes, ∼5 nm and ∼22 nm, were chemically synthesized and attached (i) directly to titanium dioxide (TiO2) or (ii) to TiO2 surface modified with siliceous shells enriched in dithiocarbamate moieties (SiO2/SiDTC). Photoanodes composed by films of TiO2 anatase, TiO2@Au NPs (∼5 nm and ∼22 nm), or TiO2 functionalized with SiO2/SiDTC, loaded with colloidal Au NPs, were made. DSSCs were set-up in a typical sandwich configuration, using the photoanode, a Pt counter electrode, and an iodide electrolyte solution (I−/I3−). In general, a relevant contribution in the plasmonic DSSC performance was evidenced by using Au NPs of ∼22 nm loaded in different amounts 23.9 wt%, 31.0 wt% and 44.0 wt%. Photoanodes composed by 23.9% of Au yielded an increment of 14.40% in photocurrent and of 11.21% in the overall power conversion efficiency (PCE), when compared to the conventional one. In turn, the new strategy used in the chemical modification of the conventional photoanodes with dithiocarbamate groups showed also a significant improvement of the DSSC parameters.Elsevier2023-04-13T08:40:35Z2019-03-20T00:00:00Z2019-03-20info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/36966eng0013-468610.1016/j.electacta.2019.01.050Truta, Liliana A.A.N.A.Pereira, SóniaHora, CarolinaTrindade, TitoSales, M. Goreti F.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T12:11:19Zoai:ria.ua.pt:10773/36966Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:07:39.646544Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Coupling gold nanoparticles to Dye-Sensitized Solar Cells for an increased efficiency
title Coupling gold nanoparticles to Dye-Sensitized Solar Cells for an increased efficiency
spellingShingle Coupling gold nanoparticles to Dye-Sensitized Solar Cells for an increased efficiency
Truta, Liliana A.A.N.A.
Gold nanoparticles
Plasmonics
Dye-sensitized solar cells
Silica gels
Titanium dioxide
title_short Coupling gold nanoparticles to Dye-Sensitized Solar Cells for an increased efficiency
title_full Coupling gold nanoparticles to Dye-Sensitized Solar Cells for an increased efficiency
title_fullStr Coupling gold nanoparticles to Dye-Sensitized Solar Cells for an increased efficiency
title_full_unstemmed Coupling gold nanoparticles to Dye-Sensitized Solar Cells for an increased efficiency
title_sort Coupling gold nanoparticles to Dye-Sensitized Solar Cells for an increased efficiency
author Truta, Liliana A.A.N.A.
author_facet Truta, Liliana A.A.N.A.
Pereira, Sónia
Hora, Carolina
Trindade, Tito
Sales, M. Goreti F.
author_role author
author2 Pereira, Sónia
Hora, Carolina
Trindade, Tito
Sales, M. Goreti F.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Truta, Liliana A.A.N.A.
Pereira, Sónia
Hora, Carolina
Trindade, Tito
Sales, M. Goreti F.
dc.subject.por.fl_str_mv Gold nanoparticles
Plasmonics
Dye-sensitized solar cells
Silica gels
Titanium dioxide
topic Gold nanoparticles
Plasmonics
Dye-sensitized solar cells
Silica gels
Titanium dioxide
description New approaches for coupling Au NPs to the photoanode of dye sensitized solar cells (DSSCs) were proposed herein, aiming to improve the typical energy conversion efficiency of these cells. For this purpose, colloidal Au NPs with different particles sizes, ∼5 nm and ∼22 nm, were chemically synthesized and attached (i) directly to titanium dioxide (TiO2) or (ii) to TiO2 surface modified with siliceous shells enriched in dithiocarbamate moieties (SiO2/SiDTC). Photoanodes composed by films of TiO2 anatase, TiO2@Au NPs (∼5 nm and ∼22 nm), or TiO2 functionalized with SiO2/SiDTC, loaded with colloidal Au NPs, were made. DSSCs were set-up in a typical sandwich configuration, using the photoanode, a Pt counter electrode, and an iodide electrolyte solution (I−/I3−). In general, a relevant contribution in the plasmonic DSSC performance was evidenced by using Au NPs of ∼22 nm loaded in different amounts 23.9 wt%, 31.0 wt% and 44.0 wt%. Photoanodes composed by 23.9% of Au yielded an increment of 14.40% in photocurrent and of 11.21% in the overall power conversion efficiency (PCE), when compared to the conventional one. In turn, the new strategy used in the chemical modification of the conventional photoanodes with dithiocarbamate groups showed also a significant improvement of the DSSC parameters.
publishDate 2019
dc.date.none.fl_str_mv 2019-03-20T00:00:00Z
2019-03-20
2023-04-13T08:40:35Z
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://hdl.handle.net/10773/36966
url http://hdl.handle.net/10773/36966
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0013-4686
10.1016/j.electacta.2019.01.050
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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