Di-ureasil xerogels containing lithium bis(trifluoromethanesulfonyl)imide for application in solid-state electrochromic devices
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/12372 |
Resumo: | In this study we report the characterization of a solid-state electrochromic device based on poly(ethylene oxide) (PEO)/siloxane hybrid networks doped with lithium bis(trifluoromethanesulfonyl)imide (LiTFSI). The polymer networks prepared, classed as di-ureasils and represented by d-U(2000), were produced by the sol-gel process and are composed of a siliceous framework to which polyether chains containing 40.5 oxyethylene repeating units are covalently bonded through urea linkages. Samples with compositions of 200 ≥ n ≥ 0.5 (where n is the molar ratio (OCH2CH2)/Li+)) were characterized by thermal analysis and complex impedance measurements, cyclic voltammetry at a gold microelectrode. Finally, we report the results of preliminary evaluation of these polymer electrolytes as components in prototype electrochromic devices. Electrochromic parameters such as coloration efficiency, optical contrast and stability were also evaluated. The devices exhibit open-circuit memory and stable electrochromic performances. |
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Di-ureasil xerogels containing lithium bis(trifluoromethanesulfonyl)imide for application in solid-state electrochromic devicesDi-ureasilSolid state devicesElectrochromic devicesDi-ureasilsSol-gelAll-solid-state electrochromic displaysSolid polymer electrolytesOrganic-inorganic hybrid networksScience & TechnologyIn this study we report the characterization of a solid-state electrochromic device based on poly(ethylene oxide) (PEO)/siloxane hybrid networks doped with lithium bis(trifluoromethanesulfonyl)imide (LiTFSI). The polymer networks prepared, classed as di-ureasils and represented by d-U(2000), were produced by the sol-gel process and are composed of a siliceous framework to which polyether chains containing 40.5 oxyethylene repeating units are covalently bonded through urea linkages. Samples with compositions of 200 ≥ n ≥ 0.5 (where n is the molar ratio (OCH2CH2)/Li+)) were characterized by thermal analysis and complex impedance measurements, cyclic voltammetry at a gold microelectrode. Finally, we report the results of preliminary evaluation of these polymer electrolytes as components in prototype electrochromic devices. Electrochromic parameters such as coloration efficiency, optical contrast and stability were also evaluated. The devices exhibit open-circuit memory and stable electrochromic performances.The authors are pleased to acknowledge the support provided by the University of Minho and the Fundacao para a Ciencia e a Tecnologia (contracts POCI/QUI/59856/2004, POCTI/SFA13/686) for laboratory equipment, research staff grants (contracts SFRH/BD/22707/2005 and SFRH/BD/13559/2003) and travel funds (PCB).ElsevierUniversidade do MinhoBarbosa, Paula C.Silva, Maria ManuelaSmith, Michael JohnGonçalves, A.Fortunato, E.Zea Bermudez, V. deNunes, Sílvia2009-012009-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/12372eng0013-468610.1016/j.electacta.2008.08.023info: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:RCAAP2023-07-21T12:22:31Zoai:repositorium.sdum.uminho.pt:1822/12372Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:16:01.025492Repositório 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 |
Di-ureasil xerogels containing lithium bis(trifluoromethanesulfonyl)imide for application in solid-state electrochromic devices |
title |
Di-ureasil xerogels containing lithium bis(trifluoromethanesulfonyl)imide for application in solid-state electrochromic devices |
spellingShingle |
Di-ureasil xerogels containing lithium bis(trifluoromethanesulfonyl)imide for application in solid-state electrochromic devices Barbosa, Paula C. Di-ureasil Solid state devices Electrochromic devices Di-ureasils Sol-gel All-solid-state electrochromic displays Solid polymer electrolytes Organic-inorganic hybrid networks Science & Technology |
title_short |
Di-ureasil xerogels containing lithium bis(trifluoromethanesulfonyl)imide for application in solid-state electrochromic devices |
title_full |
Di-ureasil xerogels containing lithium bis(trifluoromethanesulfonyl)imide for application in solid-state electrochromic devices |
title_fullStr |
Di-ureasil xerogels containing lithium bis(trifluoromethanesulfonyl)imide for application in solid-state electrochromic devices |
title_full_unstemmed |
Di-ureasil xerogels containing lithium bis(trifluoromethanesulfonyl)imide for application in solid-state electrochromic devices |
title_sort |
Di-ureasil xerogels containing lithium bis(trifluoromethanesulfonyl)imide for application in solid-state electrochromic devices |
author |
Barbosa, Paula C. |
author_facet |
Barbosa, Paula C. Silva, Maria Manuela Smith, Michael John Gonçalves, A. Fortunato, E. Zea Bermudez, V. de Nunes, Sílvia |
author_role |
author |
author2 |
Silva, Maria Manuela Smith, Michael John Gonçalves, A. Fortunato, E. Zea Bermudez, V. de Nunes, Sílvia |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Barbosa, Paula C. Silva, Maria Manuela Smith, Michael John Gonçalves, A. Fortunato, E. Zea Bermudez, V. de Nunes, Sílvia |
dc.subject.por.fl_str_mv |
Di-ureasil Solid state devices Electrochromic devices Di-ureasils Sol-gel All-solid-state electrochromic displays Solid polymer electrolytes Organic-inorganic hybrid networks Science & Technology |
topic |
Di-ureasil Solid state devices Electrochromic devices Di-ureasils Sol-gel All-solid-state electrochromic displays Solid polymer electrolytes Organic-inorganic hybrid networks Science & Technology |
description |
In this study we report the characterization of a solid-state electrochromic device based on poly(ethylene oxide) (PEO)/siloxane hybrid networks doped with lithium bis(trifluoromethanesulfonyl)imide (LiTFSI). The polymer networks prepared, classed as di-ureasils and represented by d-U(2000), were produced by the sol-gel process and are composed of a siliceous framework to which polyether chains containing 40.5 oxyethylene repeating units are covalently bonded through urea linkages. Samples with compositions of 200 ≥ n ≥ 0.5 (where n is the molar ratio (OCH2CH2)/Li+)) were characterized by thermal analysis and complex impedance measurements, cyclic voltammetry at a gold microelectrode. Finally, we report the results of preliminary evaluation of these polymer electrolytes as components in prototype electrochromic devices. Electrochromic parameters such as coloration efficiency, optical contrast and stability were also evaluated. The devices exhibit open-circuit memory and stable electrochromic performances. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-01 2009-01-01T00:00:00Z |
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/1822/12372 |
url |
http://hdl.handle.net/1822/12372 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0013-4686 10.1016/j.electacta.2008.08.023 |
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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1799132607657541632 |