Luminescent electrochromic devices for smart windows of energy-efficient buildings

Detalhes bibliográficos
Autor(a) principal: Fernandes, Mariana
Data de Publicação: 2018
Outros Autores: Freitas, Vânia, Pereira, Sónia, Leones, Rita, Silva, Maria Manuela, Carlos, Luís D., Fortunato, Elvira, Ferreira, Rute A. S., Rego, Rosa, Bermudez, Verónica De Zea
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/60831
Resumo: To address the challenges of the next generation of smart windows for energy-efficient buildings, new electrochromic devices (ECDs) are introduced. These include indium molybdenum oxide (IMO), a conducting oxide transparent in the near-infrared (NIR) region, and a NIR-emitting electrolyte. The novel electrolytes are based on a sol-gel-derived di-urethane cross-linked siloxane-based host structure, including short chains of poly (ε-caprolactone) (PCL(530) (where 530 represents the average molecular weight in g mol<sup>−1</sup>). This hybrid framework was doped with a combination of either, lithium triflate (LiTrif) and erbium triflate (ErTrif<sub>3</sub>), or LiTrif and bisaquatris (thenoyltrifluoroacetonate) erbium (III) ([Er(tta)<sub>3</sub>(H<sub>2</sub>O)<sub>2</sub>]). The ECD@LiTrif-[Er(tta)<sub>3</sub>(H<sub>2</sub>O)<sub>2</sub>] device presents a typical Er<sup>3+</sup> NIR emission around 1550 nm. The figures of merit of these devices are high cycling stability, good reversibility, and unusually high coloration efficiency (CE = ΔOD/ΔQ, where Q is the inserted/de-inserted charge density). CE values of −8824/+6569 cm<sup>2</sup> C<sup>−1</sup> and −8243/+5200 cm<sup>2</sup> C<sup>−1</sup> were achieved at 555 nm on the 400th cycle, for ECD@LiTrif-ErTrif<sub>3</sub> and ECD@LiTrif-[Er(tta)<sub>3</sub>(H<sub>2</sub>O)<sub>2</sub>], respectively.
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spelling Luminescent electrochromic devices for smart windows of energy-efficient buildingspoly(epsilon-caprolatone)siloxane hybridssol-gellithium triflateerbium triflateerbium -diketonate complexelectrochromic devicesNIR-transparent IMOzero-energy buildingsPoly(ε-caprolatone)/siloxane hybridsScience & TechnologyTo address the challenges of the next generation of smart windows for energy-efficient buildings, new electrochromic devices (ECDs) are introduced. These include indium molybdenum oxide (IMO), a conducting oxide transparent in the near-infrared (NIR) region, and a NIR-emitting electrolyte. The novel electrolytes are based on a sol-gel-derived di-urethane cross-linked siloxane-based host structure, including short chains of poly (ε-caprolactone) (PCL(530) (where 530 represents the average molecular weight in g mol<sup>−1</sup>). This hybrid framework was doped with a combination of either, lithium triflate (LiTrif) and erbium triflate (ErTrif<sub>3</sub>), or LiTrif and bisaquatris (thenoyltrifluoroacetonate) erbium (III) ([Er(tta)<sub>3</sub>(H<sub>2</sub>O)<sub>2</sub>]). The ECD@LiTrif-[Er(tta)<sub>3</sub>(H<sub>2</sub>O)<sub>2</sub>] device presents a typical Er<sup>3+</sup> NIR emission around 1550 nm. The figures of merit of these devices are high cycling stability, good reversibility, and unusually high coloration efficiency (CE = ΔOD/ΔQ, where Q is the inserted/de-inserted charge density). CE values of −8824/+6569 cm<sup>2</sup> C<sup>−1</sup> and −8243/+5200 cm<sup>2</sup> C<sup>−1</sup> were achieved at 555 nm on the 400th cycle, for ECD@LiTrif-ErTrif<sub>3</sub> and ECD@LiTrif-[Er(tta)<sub>3</sub>(H<sub>2</sub>O)<sub>2</sub>], respectively.This research was funded by National Funds through the Foundation for Science and Technology (FCT) and by FEDER funds through the POCI-COMPETE 2020, Operational Programme Competitiveness and Internationalisation in Axis I: Strengthening research, technological development and innovation (FCT Ref. UID/QUI/00616/2013, POCI-01-0145-FEDER-007491, FCT Ref. UID/Multi/00709/2013), and LUMECD (POCI-01-0145-FEDER-016884 and PTDC/CTM-NAN/0956/2014).info:eu-repo/semantics/publishedVersionMultidisciplinary Digital Publishing InstituteUniversidade do MinhoFernandes, MarianaFreitas, VâniaPereira, SóniaLeones, RitaSilva, Maria ManuelaCarlos, Luís D.Fortunato, ElviraFerreira, Rute A. S.Rego, RosaBermudez, Verónica De Zea2018-12-172018-12-17T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/60831eng1996-107310.3390/en11123513info: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:RCAAP2024-05-11T04:13:37Zoai:repositorium.sdum.uminho.pt:1822/60831Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-05-11T04:13:37Repositório 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 Luminescent electrochromic devices for smart windows of energy-efficient buildings
title Luminescent electrochromic devices for smart windows of energy-efficient buildings
spellingShingle Luminescent electrochromic devices for smart windows of energy-efficient buildings
Fernandes, Mariana
poly(epsilon-caprolatone)
siloxane hybrids
sol-gel
lithium triflate
erbium triflate
erbium -diketonate complex
electrochromic devices
NIR-transparent IMO
zero-energy buildings
Poly(ε-caprolatone)/siloxane hybrids
Science & Technology
title_short Luminescent electrochromic devices for smart windows of energy-efficient buildings
title_full Luminescent electrochromic devices for smart windows of energy-efficient buildings
title_fullStr Luminescent electrochromic devices for smart windows of energy-efficient buildings
title_full_unstemmed Luminescent electrochromic devices for smart windows of energy-efficient buildings
title_sort Luminescent electrochromic devices for smart windows of energy-efficient buildings
author Fernandes, Mariana
author_facet Fernandes, Mariana
Freitas, Vânia
Pereira, Sónia
Leones, Rita
Silva, Maria Manuela
Carlos, Luís D.
Fortunato, Elvira
Ferreira, Rute A. S.
Rego, Rosa
Bermudez, Verónica De Zea
author_role author
author2 Freitas, Vânia
Pereira, Sónia
Leones, Rita
Silva, Maria Manuela
Carlos, Luís D.
Fortunato, Elvira
Ferreira, Rute A. S.
Rego, Rosa
Bermudez, Verónica De Zea
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Fernandes, Mariana
Freitas, Vânia
Pereira, Sónia
Leones, Rita
Silva, Maria Manuela
Carlos, Luís D.
Fortunato, Elvira
Ferreira, Rute A. S.
Rego, Rosa
Bermudez, Verónica De Zea
dc.subject.por.fl_str_mv poly(epsilon-caprolatone)
siloxane hybrids
sol-gel
lithium triflate
erbium triflate
erbium -diketonate complex
electrochromic devices
NIR-transparent IMO
zero-energy buildings
Poly(ε-caprolatone)/siloxane hybrids
Science & Technology
topic poly(epsilon-caprolatone)
siloxane hybrids
sol-gel
lithium triflate
erbium triflate
erbium -diketonate complex
electrochromic devices
NIR-transparent IMO
zero-energy buildings
Poly(ε-caprolatone)/siloxane hybrids
Science & Technology
description To address the challenges of the next generation of smart windows for energy-efficient buildings, new electrochromic devices (ECDs) are introduced. These include indium molybdenum oxide (IMO), a conducting oxide transparent in the near-infrared (NIR) region, and a NIR-emitting electrolyte. The novel electrolytes are based on a sol-gel-derived di-urethane cross-linked siloxane-based host structure, including short chains of poly (ε-caprolactone) (PCL(530) (where 530 represents the average molecular weight in g mol<sup>−1</sup>). This hybrid framework was doped with a combination of either, lithium triflate (LiTrif) and erbium triflate (ErTrif<sub>3</sub>), or LiTrif and bisaquatris (thenoyltrifluoroacetonate) erbium (III) ([Er(tta)<sub>3</sub>(H<sub>2</sub>O)<sub>2</sub>]). The ECD@LiTrif-[Er(tta)<sub>3</sub>(H<sub>2</sub>O)<sub>2</sub>] device presents a typical Er<sup>3+</sup> NIR emission around 1550 nm. The figures of merit of these devices are high cycling stability, good reversibility, and unusually high coloration efficiency (CE = ΔOD/ΔQ, where Q is the inserted/de-inserted charge density). CE values of −8824/+6569 cm<sup>2</sup> C<sup>−1</sup> and −8243/+5200 cm<sup>2</sup> C<sup>−1</sup> were achieved at 555 nm on the 400th cycle, for ECD@LiTrif-ErTrif<sub>3</sub> and ECD@LiTrif-[Er(tta)<sub>3</sub>(H<sub>2</sub>O)<sub>2</sub>], respectively.
publishDate 2018
dc.date.none.fl_str_mv 2018-12-17
2018-12-17T00:00:00Z
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/1822/60831
url http://hdl.handle.net/1822/60831
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1996-1073
10.3390/en11123513
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 Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
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 mluisa.alvim@gmail.com
_version_ 1817544247248683008

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