Two-dimensional self-assembled network structure of Co3O4 quantum-dot-decorated ZnO nanobeads for ppb-level acetone sensors
DC Field | Value | Language |
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dc.contributor.author | Cho, Chang Hee | - |
dc.contributor.author | Oh, Jin Young | - |
dc.contributor.author | Lee, Tae Il | - |
dc.date.accessioned | 2022-03-28T04:40:06Z | - |
dc.date.available | 2022-03-28T04:40:06Z | - |
dc.date.created | 2022-02-19 | - |
dc.date.issued | 2022-05-01 | - |
dc.identifier.issn | 0167-577X | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/83832 | - |
dc.description.abstract | A two-dimensional self-assembled network structure of ZnO nanobeads (NBs) decorated with Co3O4 quantum dots (QDs) was fabricated by an alcohol-assisted Langmuir–Blodgett method for a highly sensitive acetone sensor. Owing to the formation of a p–n junction between the Co3O4 QDs and ZnO NBs and the catalytic activity of Co3O4 QDs for acetone oxidation, the operating temperature of the sensor decreased from 350 to 250 °C, and the response to 1 ppm acetone increased from 5.3 to 7.2. The response was 1.5 even to 40 ppb acetone. Furthermore, the sensor was applied to a commercial breath analyzer, and ppb-levels of acetone were successfully detected in the exhalation of an adult. © 2022 Elsevier B.V. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | Elsevier | - |
dc.relation.isPartOf | Materials Letters | - |
dc.title | Two-dimensional self-assembled network structure of Co3O4 quantum-dot-decorated ZnO nanobeads for ppb-level acetone sensors | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000766077600012 | - |
dc.identifier.doi | 10.1016/j.matlet.2022.131826 | - |
dc.identifier.bibliographicCitation | Materials Letters, v.314 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-85124247750 | - |
dc.citation.title | Materials Letters | - |
dc.citation.volume | 314 | - |
dc.contributor.affiliatedAuthor | Cho, Chang Hee | - |
dc.contributor.affiliatedAuthor | Lee, Tae Il | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Acetone sensor | - |
dc.subject.keywordAuthor | Co3O4 | - |
dc.subject.keywordAuthor | Metal oxide | - |
dc.subject.keywordAuthor | Self-assembly | - |
dc.subject.keywordAuthor | ZnO | - |
dc.subject.keywordPlus | SENSING PROPERTIES | - |
dc.subject.keywordPlus | BREATH ACETONE | - |
dc.subject.keywordPlus | GAS SENSOR | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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