Coumarin dye with ethynyl group as p-spacer unit for dye sensitized solar cells

Detalhes bibliográficos
Autor(a) principal: Torres, Erica
Data de Publicação: 2015
Outros Autores: Sequeira, S., Parreira, P., Mendes, Paulo, Silva, Tiago J. L., Lobato, Killian, Brites, Maria João
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.9/2894
Resumo: C1-LEN coumarin dye, containing an ethynyl conjugated bridge was tested as a new chromophore for dye-sensitized solar cells (DSSCs). Investigation on the relationship of dye structure, optical properties, electrochemical properties and performance of DSSCs is described. The C1-LEN-sensitized solar cells showed an overall conversion efficiency of 2.2% (JSC = 6.11 mA/cm2, VOC = 547 mV, FF = 0.66), which corresponds to 68% of N719-based device efficiency, fabricated under similar conditions. Electrochemical impedance spectroscopy (EIS) analysis reveals that charge recombination at the nanocrystalline TiO2/dye/redox electrolyte interface is similar for C1-LEN and N719 sensitized solar cells, i.e., charge recombination is not the factor limiting the performance of C1-LEN device.
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spelling Coumarin dye with ethynyl group as p-spacer unit for dye sensitized solar cellsSolar cellsDyesAlkyne bridge Electrochemical impedance spectroscopyCoumarinC1-LEN coumarin dye, containing an ethynyl conjugated bridge was tested as a new chromophore for dye-sensitized solar cells (DSSCs). Investigation on the relationship of dye structure, optical properties, electrochemical properties and performance of DSSCs is described. The C1-LEN-sensitized solar cells showed an overall conversion efficiency of 2.2% (JSC = 6.11 mA/cm2, VOC = 547 mV, FF = 0.66), which corresponds to 68% of N719-based device efficiency, fabricated under similar conditions. Electrochemical impedance spectroscopy (EIS) analysis reveals that charge recombination at the nanocrystalline TiO2/dye/redox electrolyte interface is similar for C1-LEN and N719 sensitized solar cells, i.e., charge recombination is not the factor limiting the performance of C1-LEN device.ElsevierRepositório do LNEGTorres, EricaSequeira, S.Parreira, P.Mendes, PauloSilva, Tiago J. L.Lobato, KillianBrites, Maria João2016-03-22T12:28:09Z2015-01-01T00:00:00Z2015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.9/2894engTorres, E.; Sequeira, S.; Parreira, P.; [et.al.]. - Coumarin dye with ethynyl group as p-spacer unit for dye sensitized solar cells. In: Journal of Photochemistry and Photobiology A: Chemistry, 2015, Vol. 310, p. 1-81010-603010.1016/j.jphotochem.2015.05.017info: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:RCAAP2022-09-06T12:28:09Zoai:repositorio.lneg.pt:10400.9/2894Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:35:56.226134Repositório 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 Coumarin dye with ethynyl group as p-spacer unit for dye sensitized solar cells
title Coumarin dye with ethynyl group as p-spacer unit for dye sensitized solar cells
spellingShingle Coumarin dye with ethynyl group as p-spacer unit for dye sensitized solar cells
Torres, Erica
Solar cells
Dyes
Alkyne bridge 
Electrochemical impedance spectroscopy
Coumarin
title_short Coumarin dye with ethynyl group as p-spacer unit for dye sensitized solar cells
title_full Coumarin dye with ethynyl group as p-spacer unit for dye sensitized solar cells
title_fullStr Coumarin dye with ethynyl group as p-spacer unit for dye sensitized solar cells
title_full_unstemmed Coumarin dye with ethynyl group as p-spacer unit for dye sensitized solar cells
title_sort Coumarin dye with ethynyl group as p-spacer unit for dye sensitized solar cells
author Torres, Erica
author_facet Torres, Erica
Sequeira, S.
Parreira, P.
Mendes, Paulo
Silva, Tiago J. L.
Lobato, Killian
Brites, Maria João
author_role author
author2 Sequeira, S.
Parreira, P.
Mendes, Paulo
Silva, Tiago J. L.
Lobato, Killian
Brites, Maria João
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório do LNEG
dc.contributor.author.fl_str_mv Torres, Erica
Sequeira, S.
Parreira, P.
Mendes, Paulo
Silva, Tiago J. L.
Lobato, Killian
Brites, Maria João
dc.subject.por.fl_str_mv Solar cells
Dyes
Alkyne bridge 
Electrochemical impedance spectroscopy
Coumarin
topic Solar cells
Dyes
Alkyne bridge 
Electrochemical impedance spectroscopy
Coumarin
description C1-LEN coumarin dye, containing an ethynyl conjugated bridge was tested as a new chromophore for dye-sensitized solar cells (DSSCs). Investigation on the relationship of dye structure, optical properties, electrochemical properties and performance of DSSCs is described. The C1-LEN-sensitized solar cells showed an overall conversion efficiency of 2.2% (JSC = 6.11 mA/cm2, VOC = 547 mV, FF = 0.66), which corresponds to 68% of N719-based device efficiency, fabricated under similar conditions. Electrochemical impedance spectroscopy (EIS) analysis reveals that charge recombination at the nanocrystalline TiO2/dye/redox electrolyte interface is similar for C1-LEN and N719 sensitized solar cells, i.e., charge recombination is not the factor limiting the performance of C1-LEN device.
publishDate 2015
dc.date.none.fl_str_mv 2015-01-01T00:00:00Z
2015-01-01T00:00:00Z
2016-03-22T12:28:09Z
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://hdl.handle.net/10400.9/2894
url http://hdl.handle.net/10400.9/2894
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Torres, E.; Sequeira, S.; Parreira, P.; [et.al.]. - Coumarin dye with ethynyl group as p-spacer unit for dye sensitized solar cells. In: Journal of Photochemistry and Photobiology A: Chemistry, 2015, Vol. 310, p. 1-8
1010-6030
10.1016/j.jphotochem.2015.05.017
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.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)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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