Laser transmission welding and surface modification of graphene film for flexible supercapacitor applications
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Choi, H. | - |
dc.contributor.author | Nguyen, P.T. | - |
dc.contributor.author | In, J.B. | - |
dc.date.available | 2019-05-28T03:36:22Z | - |
dc.date.issued | 2019-07 | - |
dc.identifier.issn | 0169-4332 | - |
dc.identifier.issn | 1873-5584 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/18603 | - |
dc.description.abstract | When a graphene film is coated onto a flexible polymer substrate, weak adhesion can cause delamination of the film under mechanical bending. Moreover, as each graphene layer restacks, the performance of the film as an electrode for a supercapacitor becomes limited. In this study, facile laser welding and surface modification processes are demonstrated to overcome these limitations. First, a continuous wave laser beam is applied to the interface between the coated graphene and the underlying transparent polycarbonate substrate. This welding process significantly improves their adhesion and enables excellent mechanical bendability. Second, surface modification of graphene is achieved under ambient conditions by irradiating the graphene film surface with a nanosecond pulsed laser. Sandwich-type supercapacitors are fabricated using these surface-modified graphene electrodes with a PVA-H 3 PO 4 electrolyte. The effect of the laser fluence on the performance of the supercapacitor is investigated. At an optimal laser power, an areal capacitance of 4.7 mF/cm 2 is achieved. © 2019 Elsevier B.V. | - |
dc.format.extent | 8 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Elsevier B.V. | - |
dc.title | Laser transmission welding and surface modification of graphene film for flexible supercapacitor applications | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.apsusc.2019.03.349 | - |
dc.identifier.bibliographicCitation | Applied Surface Science, v.483, pp 481 - 488 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000471105000054 | - |
dc.identifier.scopusid | 2-s2.0-85063742303 | - |
dc.citation.endPage | 488 | - |
dc.citation.startPage | 481 | - |
dc.citation.title | Applied Surface Science | - |
dc.citation.volume | 483 | - |
dc.type.docType | Article | - |
dc.publisher.location | 네델란드 | - |
dc.subject.keywordAuthor | Flexible device | - |
dc.subject.keywordAuthor | Graphene | - |
dc.subject.keywordAuthor | Laser transmission welding | - |
dc.subject.keywordAuthor | Pulsed laser | - |
dc.subject.keywordAuthor | Supercapacitor | - |
dc.subject.keywordPlus | Adhesion | - |
dc.subject.keywordPlus | Continuous wave lasers | - |
dc.subject.keywordPlus | Electrolytes | - |
dc.subject.keywordPlus | Graphene | - |
dc.subject.keywordPlus | Graphite electrodes | - |
dc.subject.keywordPlus | Laser beam welding | - |
dc.subject.keywordPlus | Laser beams | - |
dc.subject.keywordPlus | Supercapacitor | - |
dc.subject.keywordPlus | Ultrafast lasers | - |
dc.subject.keywordPlus | Welding electrodes | - |
dc.subject.keywordPlus | Flexible device | - |
dc.subject.keywordPlus | Flexible polymer substrates | - |
dc.subject.keywordPlus | Graphene electrodes | - |
dc.subject.keywordPlus | Laser transmission welding | - |
dc.subject.keywordPlus | Nanosecond pulsed laser | - |
dc.subject.keywordPlus | Polycarbonate substrates | - |
dc.subject.keywordPlus | Supercapacitor application | - |
dc.subject.keywordPlus | Surface modification process | - |
dc.subject.keywordPlus | Pulsed lasers | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Coatings & Films | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.description.journalRegisteredClass | sci | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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