Laser Writing of Eutectic Gallium–Indium Alloy Graphene‐Oxide Electrodes and Semitransparent Conductors
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
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/10316/100323 https://doi.org/10.1002/admt.202101238 |
Resumo: | Graphene encapsulated liquid metal particles is a novel and promising class of biphasic composite, with application in the next generation of electronic devices. Here, rapid, low-cost, and scalable fabrication of solution processed large area rGO@EGaIn electrodes is demonstrated. rGO@EGaIn solution is first deposited over the substrate through spray coating, and then processed through a low-cost laser (master oscillator power amplifier (MOPA)). This allows simultaneous reduction, thinning, ablation, and high resolution patterning of the deposited films. Surprisingly, it is found that by adjusting the laser parameters, it is possible to make semitransparent conductors via laser thinning of the films. Scanning electronic microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS) spectroscopy confirm that although the rGO/EGaIn weight ratio is only ≈0.08, the composite has a considerably different microstructure compared to the eutectic gallium–indium alloy (EGaIn) particles alone. Graphene oxide (GO) protects the EGaIn from extreme morphology change under laser irradiation. Therefore, various “shades” of rGO@EGaIn can be fabricated in a single film. This allows development of large electrodes with complex geometries in a few seconds. The conductivity, transparency, and reduction of the laser processed films are characterized by several techniques and an example of application is demonstrated by laser patterning a highly sensitive breath-monitoring sensor. |
id |
RCAP_e6e83c04ab09417160e6c0764bb6cf65 |
---|---|
oai_identifier_str |
oai:estudogeral.uc.pt:10316/100323 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Laser Writing of Eutectic Gallium–Indium Alloy Graphene‐Oxide Electrodes and Semitransparent ConductorsGraphene encapsulated liquid metal particles is a novel and promising class of biphasic composite, with application in the next generation of electronic devices. Here, rapid, low-cost, and scalable fabrication of solution processed large area rGO@EGaIn electrodes is demonstrated. rGO@EGaIn solution is first deposited over the substrate through spray coating, and then processed through a low-cost laser (master oscillator power amplifier (MOPA)). This allows simultaneous reduction, thinning, ablation, and high resolution patterning of the deposited films. Surprisingly, it is found that by adjusting the laser parameters, it is possible to make semitransparent conductors via laser thinning of the films. Scanning electronic microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS) spectroscopy confirm that although the rGO/EGaIn weight ratio is only ≈0.08, the composite has a considerably different microstructure compared to the eutectic gallium–indium alloy (EGaIn) particles alone. Graphene oxide (GO) protects the EGaIn from extreme morphology change under laser irradiation. Therefore, various “shades” of rGO@EGaIn can be fabricated in a single film. This allows development of large electrodes with complex geometries in a few seconds. The conductivity, transparency, and reduction of the laser processed films are characterized by several techniques and an example of application is demonstrated by laser patterning a highly sensitive breath-monitoring sensor.Wiley2022-072023-07-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/100323http://hdl.handle.net/10316/100323https://doi.org/10.1002/admt.202101238eng2365-709X2365-709Xhttps://onlinelibrary.wiley.com/doi/abs/10.1002/admt.202101238Chambel, AlexandreSanati, Afsaneh L.Lopes, Pedro AlhaisNikitin, TimurFausto, RuiAlmeida, Aníbal T. deTavakoli, Mahmoudinfo:eu-repo/semantics/embargoedAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-10-27T11:06:38Zoai:estudogeral.uc.pt:10316/100323Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:17:44.118830Repositório 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 |
Laser Writing of Eutectic Gallium–Indium Alloy Graphene‐Oxide Electrodes and Semitransparent Conductors |
title |
Laser Writing of Eutectic Gallium–Indium Alloy Graphene‐Oxide Electrodes and Semitransparent Conductors |
spellingShingle |
Laser Writing of Eutectic Gallium–Indium Alloy Graphene‐Oxide Electrodes and Semitransparent Conductors Chambel, Alexandre |
title_short |
Laser Writing of Eutectic Gallium–Indium Alloy Graphene‐Oxide Electrodes and Semitransparent Conductors |
title_full |
Laser Writing of Eutectic Gallium–Indium Alloy Graphene‐Oxide Electrodes and Semitransparent Conductors |
title_fullStr |
Laser Writing of Eutectic Gallium–Indium Alloy Graphene‐Oxide Electrodes and Semitransparent Conductors |
title_full_unstemmed |
Laser Writing of Eutectic Gallium–Indium Alloy Graphene‐Oxide Electrodes and Semitransparent Conductors |
title_sort |
Laser Writing of Eutectic Gallium–Indium Alloy Graphene‐Oxide Electrodes and Semitransparent Conductors |
author |
Chambel, Alexandre |
author_facet |
Chambel, Alexandre Sanati, Afsaneh L. Lopes, Pedro Alhais Nikitin, Timur Fausto, Rui Almeida, Aníbal T. de Tavakoli, Mahmoud |
author_role |
author |
author2 |
Sanati, Afsaneh L. Lopes, Pedro Alhais Nikitin, Timur Fausto, Rui Almeida, Aníbal T. de Tavakoli, Mahmoud |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Chambel, Alexandre Sanati, Afsaneh L. Lopes, Pedro Alhais Nikitin, Timur Fausto, Rui Almeida, Aníbal T. de Tavakoli, Mahmoud |
description |
Graphene encapsulated liquid metal particles is a novel and promising class of biphasic composite, with application in the next generation of electronic devices. Here, rapid, low-cost, and scalable fabrication of solution processed large area rGO@EGaIn electrodes is demonstrated. rGO@EGaIn solution is first deposited over the substrate through spray coating, and then processed through a low-cost laser (master oscillator power amplifier (MOPA)). This allows simultaneous reduction, thinning, ablation, and high resolution patterning of the deposited films. Surprisingly, it is found that by adjusting the laser parameters, it is possible to make semitransparent conductors via laser thinning of the films. Scanning electronic microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS) spectroscopy confirm that although the rGO/EGaIn weight ratio is only ≈0.08, the composite has a considerably different microstructure compared to the eutectic gallium–indium alloy (EGaIn) particles alone. Graphene oxide (GO) protects the EGaIn from extreme morphology change under laser irradiation. Therefore, various “shades” of rGO@EGaIn can be fabricated in a single film. This allows development of large electrodes with complex geometries in a few seconds. The conductivity, transparency, and reduction of the laser processed films are characterized by several techniques and an example of application is demonstrated by laser patterning a highly sensitive breath-monitoring sensor. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-07 2023-07-01T00:00:00Z |
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/10316/100323 http://hdl.handle.net/10316/100323 https://doi.org/10.1002/admt.202101238 |
url |
http://hdl.handle.net/10316/100323 https://doi.org/10.1002/admt.202101238 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2365-709X 2365-709X https://onlinelibrary.wiley.com/doi/abs/10.1002/admt.202101238 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/embargoedAccess |
eu_rights_str_mv |
embargoedAccess |
dc.publisher.none.fl_str_mv |
Wiley |
publisher.none.fl_str_mv |
Wiley |
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 |
|
_version_ |
1799134073483952128 |