Multifunctional monoclinic VO2 nanorod thin films for enhanced energy applications: Photoelectrochemical water splitting and supercapacitor
DC Field | Value | Language |
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dc.contributor.author | Reddy, I. Neelakanta | - |
dc.contributor.author | Sreedhar, Adem | - |
dc.contributor.author | Shim, Jaesool | - |
dc.contributor.author | Gwag, Jin Seog | - |
dc.date.available | 2020-02-27T04:41:31Z | - |
dc.date.created | 2020-02-05 | - |
dc.date.issued | 2019-02-15 | - |
dc.identifier.issn | 1572-6657 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/1840 | - |
dc.description.abstract | Monoclinic VO2 nanorod thin films were deposited on indium-tin-oxide-coated glass substrates using radio-frequency reactive magnetron sputtering at a substrate temperature of 300 degrees C and various O-2 flow rates. The thin films were characterized via standard analysis techniques. The VO2 thin films exhibited a highly crystalline monoclinic phase with an indirect band gap of similar to 1.73 eV. At optimized O-2 flow rate (4 sccm), the thin films was observed nanorod structures, exhibited a remarkable photocurrent of -0.08 mA cm(-2) during photoelectrochemical water splitting in the visible region. Electrochemical performance tests of the nanorod films revealed a specific capacitance of similar to 486 mF cm(-2) at a scan rate of 10 mVs(-1). In addition, amperometric I-t curves showed that VO2 thin film electrodes were highly stable during the photo-oxidation process. The nanorod films also exhibited a good specific capacitance of similar to 120 mF cm(-2) after 5000 cycles at a scan rate of 100 mVs(-1). The photocurrents during photoelectrochemical water splitting and the specific capacitance of VO2 thin films deposited at O-2 flow rates of 2 and 6 sccm were 0.06 and 0.07 mA cm(-2) and 398 and 37 mF cm(-2), respectively. The films deposited under Ar at 8 sccm and O-2 at 4 sccm showed the highest photoelectrochemical water splitting performance and specific capacitance, owing mainly to their nanorod-like morphology. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.relation.isPartOf | JOURNAL OF ELECTROANALYTICAL CHEMISTRY | - |
dc.subject | VANADIUM DIOXIDE | - |
dc.subject | HIGH-POWER | - |
dc.subject | PERFORMANCE | - |
dc.subject | PHASE | - |
dc.subject | NANOSTRUCTURES | - |
dc.subject | HYDROGEN | - |
dc.subject | TRANSITION | - |
dc.subject | ELECTRODES | - |
dc.subject | REDUCTION | - |
dc.subject | INSULATOR | - |
dc.title | Multifunctional monoclinic VO2 nanorod thin films for enhanced energy applications: Photoelectrochemical water splitting and supercapacitor | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000458943900005 | - |
dc.identifier.doi | 10.1016/j.jelechem.2019.01.026 | - |
dc.identifier.bibliographicCitation | JOURNAL OF ELECTROANALYTICAL CHEMISTRY, v.835, pp.40 - 47 | - |
dc.identifier.scopusid | 2-s2.0-85059935223 | - |
dc.citation.endPage | 47 | - |
dc.citation.startPage | 40 | - |
dc.citation.title | JOURNAL OF ELECTROANALYTICAL CHEMISTRY | - |
dc.citation.volume | 835 | - |
dc.contributor.affiliatedAuthor | Sreedhar, Adem | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | VO2 | - |
dc.subject.keywordAuthor | Monoclinic | - |
dc.subject.keywordAuthor | Partial pressure | - |
dc.subject.keywordAuthor | Reactive sputtering | - |
dc.subject.keywordAuthor | Photoelectrochemical water splitting | - |
dc.subject.keywordAuthor | Supercapacitor | - |
dc.subject.keywordPlus | VANADIUM DIOXIDE | - |
dc.subject.keywordPlus | HIGH-POWER | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | PHASE | - |
dc.subject.keywordPlus | NANOSTRUCTURES | - |
dc.subject.keywordPlus | HYDROGEN | - |
dc.subject.keywordPlus | TRANSITION | - |
dc.subject.keywordPlus | ELECTRODES | - |
dc.subject.keywordPlus | REDUCTION | - |
dc.subject.keywordPlus | INSULATOR | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Analytical | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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