Fabrication of flexible micro-supercapacitor array with patterned graphene foam/MWNT-COOH/MnOx electrodes and its application
DC Field | Value | Language |
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dc.contributor.author | Moon, Young Sun | - |
dc.contributor.author | Kim, Daeil | - |
dc.contributor.author | Lee, Geumbee | - |
dc.contributor.author | Hong, Soo Yeong | - |
dc.contributor.author | Kim, Kuk Ki | - |
dc.contributor.author | Park, Seung Min | - |
dc.contributor.author | Ha, Jeong Sook | - |
dc.date.accessioned | 2021-09-04T20:18:46Z | - |
dc.date.available | 2021-09-04T20:18:46Z | - |
dc.date.created | 2021-06-15 | - |
dc.date.issued | 2015-01 | - |
dc.identifier.issn | 0008-6223 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/94706 | - |
dc.description.abstract | We report on the facile fabrication of an all-solid-state flexible planar-type micro-supercapacitor (MSC) array with micropatterned hybrid electrodes of graphene foam (GF)/COOH-functionalized multi-walled nanotubes (MWNT-COOH)/MnOx and its application as a power source to operate various micro-light emitting diodes (mu-LEDs) and a SnO2 nanowire ( NW) UV sensor. Composite electrodes of GF/MWNT-COOH/MnOx were simply micropatterned via reactive ion etching (RIE) with a metal mask, and used as current collectors as well as active materials. Polyvinyl alcohol-H3PO4 was used as the solid-state electrolyte. The use of the composite film electrodes increased the area specific capacitance similar to 11 times compared to the MSC with just patterned GF electrodes. After 10(4) charge/discharge cycles, 89.5% of the initial capacitance was maintained. Furthermore, very stable performance was observed over 10(3) bending of the whole MSC on a polyethersulfone substrate with capacitance retention of 95.5%. For the first time, we could directly measure the UV-induced photocurrent through a SnO2 NW sensor powered by 4 MSCs connected in parallel. Fast response to UV pulses was detected for a time of more than 10 min. This work demonstrates the high application potential of our MSCs using patterned electrodes of GF/MWNT-COOH/ MnOx to self-powered flexible electronic devices including NW-based sensors. (C) 2014 Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | HIGH-PERFORMANCE | - |
dc.subject | HYBRID FOAM | - |
dc.subject | HIGH-ENERGY | - |
dc.subject | CAPACITANCE | - |
dc.subject | COMPOSITE | - |
dc.subject | BATTERIES | - |
dc.subject | NETWORKS | - |
dc.subject | LAYER | - |
dc.subject | GENERATION | - |
dc.title | Fabrication of flexible micro-supercapacitor array with patterned graphene foam/MWNT-COOH/MnOx electrodes and its application | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Ha, Jeong Sook | - |
dc.identifier.doi | 10.1016/j.carbon.2014.09.018 | - |
dc.identifier.scopusid | 2-s2.0-84922722122 | - |
dc.identifier.wosid | 000345682900003 | - |
dc.identifier.bibliographicCitation | CARBON, v.81, pp.29 - 37 | - |
dc.relation.isPartOf | CARBON | - |
dc.citation.title | CARBON | - |
dc.citation.volume | 81 | - |
dc.citation.startPage | 29 | - |
dc.citation.endPage | 37 | - |
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 | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE | - |
dc.subject.keywordPlus | HYBRID FOAM | - |
dc.subject.keywordPlus | HIGH-ENERGY | - |
dc.subject.keywordPlus | CAPACITANCE | - |
dc.subject.keywordPlus | COMPOSITE | - |
dc.subject.keywordPlus | BATTERIES | - |
dc.subject.keywordPlus | NETWORKS | - |
dc.subject.keywordPlus | LAYER | - |
dc.subject.keywordPlus | GENERATION | - |
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