High-performance all-solid-state flexible micro-supercapacitor arrays with layer-by-layer assembled MWNT/MnOx nanocomposite electrodes
DC Field | Value | Language |
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dc.contributor.author | Lee, Geumbee | - |
dc.contributor.author | Kim, Daeil | - |
dc.contributor.author | Yun, Junyeong | - |
dc.contributor.author | Ko, Yongmin | - |
dc.contributor.author | Cho, Jinhan | - |
dc.contributor.author | Ha, Jeong Sook | - |
dc.date.accessioned | 2021-09-05T06:06:28Z | - |
dc.date.available | 2021-09-05T06:06:28Z | - |
dc.date.created | 2021-06-15 | - |
dc.date.issued | 2014-08-21 | - |
dc.identifier.issn | 2040-3364 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/97668 | - |
dc.description.abstract | In this study, we report on the fabrication of high performance planar-type flexible micro-supercapacitor (MSC) arrays using Au electrodes coated with a functionalized multi-walled carbon nanotube (MWNT) film and a layer of MWNT-COOH/MnOx nanoparticle (NP) composite on top. The MWNT thin film was formed via layer-by-layer (LbL) assembly of MWNTs functionalized with amine groups and MWNTs with carboxylic acid groups in water. The hydrothermally synthesized composite of MWNT-COOH/MnOx NPs was coated on top of the MWNT film (LbL-MWNT). The addition of MWNT-COOH/MnOx NP composite as a top layer enhanced the performance of the MSCs dramatically, resulting in a volumetric capacitance of 50 F cm(-3) at a scan rate of 10 mV s(-1) and a coulombic efficiency of similar to 100%. By contrast, a volumetric capacitance of 3.6 F cm(-3) was obtained when using only the LbL-MWNT film. After repetitive operation up to similar to 10(4) times, the capacitance remained at similar to 88.3% of the original value. With a deliberate circuit design consisting of serially connected MSC arrays, various light-emitting diodes operating at different bias voltages could be lit. The MSC circuit fabricated on a polyethylene terephthalate (PET) film showed stable electrochemical properties upon 1000 cycles of bending deformation. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | CARBON NANOTUBE FILMS | - |
dc.subject | SELF-POWERED SYSTEMS | - |
dc.subject | ELECTROCHEMICAL CAPACITORS | - |
dc.subject | HYDROTHERMAL SYNTHESIS | - |
dc.subject | GRAPHENE SHEETS | - |
dc.subject | ENERGY-STORAGE | - |
dc.subject | HYDROUS RUO2 | - |
dc.subject | OXIDE | - |
dc.subject | NANOSTRUCTURES | - |
dc.subject | COMPOSITES | - |
dc.title | High-performance all-solid-state flexible micro-supercapacitor arrays with layer-by-layer assembled MWNT/MnOx nanocomposite electrodes | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Cho, Jinhan | - |
dc.contributor.affiliatedAuthor | Ha, Jeong Sook | - |
dc.identifier.doi | 10.1039/c4nr02035a | - |
dc.identifier.scopusid | 2-s2.0-84905163817 | - |
dc.identifier.wosid | 000340217900039 | - |
dc.identifier.bibliographicCitation | NANOSCALE, v.6, no.16, pp.9655 - 9664 | - |
dc.relation.isPartOf | NANOSCALE | - |
dc.citation.title | NANOSCALE | - |
dc.citation.volume | 6 | - |
dc.citation.number | 16 | - |
dc.citation.startPage | 9655 | - |
dc.citation.endPage | 9664 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | CARBON NANOTUBE FILMS | - |
dc.subject.keywordPlus | SELF-POWERED SYSTEMS | - |
dc.subject.keywordPlus | ELECTROCHEMICAL CAPACITORS | - |
dc.subject.keywordPlus | HYDROTHERMAL SYNTHESIS | - |
dc.subject.keywordPlus | GRAPHENE SHEETS | - |
dc.subject.keywordPlus | ENERGY-STORAGE | - |
dc.subject.keywordPlus | HYDROUS RUO2 | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | NANOSTRUCTURES | - |
dc.subject.keywordPlus | COMPOSITES | - |
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