Selective Improvement of NO₂ Gas Sensing Behavior in SnO₂ Nanowires by Ion-Beam Irradiation
DC Field | Value | Language |
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dc.contributor.author | Kwon, Yong Jung | - |
dc.contributor.author | Kang, Sung Yong | - |
dc.contributor.author | Wu, Ping | - |
dc.contributor.author | Peng, Yuan | - |
dc.contributor.author | Kim, Sang Sub | - |
dc.contributor.author | Kim, Hyoun Woo | - |
dc.date.accessioned | 2021-08-02T16:52:02Z | - |
dc.date.available | 2021-08-02T16:52:02Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2016-06 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/23005 | - |
dc.description.abstract | We irradiated SnO₂ nanowires with He ions (45 MeV) with different ion fluences. Structure and morphology of the SnO₂ nanowires did not undergo noticeable changes upon ion-beam irradiation. Chemical so, equilibrium in SnO₂/gas systems was calculated from thermodynamic principles, which were used to study the sensing selectivity of the tested gases, demonstrating the selective sensitivity of the SnO₂ surface to NO₂ gas. Being different from other gases, including H₂, ethanol, acetone, SO₂, and NH₃, the sensor response to NO₂ gas significantly increases as the ion fluence Acetone increases, showing a maximum under an ion fluence of 1 X 10¹⁶ ions/cm². Photoluminescence analysis shows that the relative intensity of the peak at 2.1 eV to the peak at 2.5 eV increases upon ion-beam irradiation, suggesting that structural defects and/or tin interstitials have been generated. X-ray photoelectron spectroscopy indicated that the ionic ratio of Sn²⁺/Sn⁴⁺ increases by the ion-beam irradiation, supporting the formation of surface Sn interstitials. Using thermodynamic calculations, we explained the observed selective sensing behavior. A molecular level model was also established for the adsorption of NO₂ on ion-irradiated SnO₂ (110) surfaces. We propose that the adsorption of NO₂-related species is considerably enhanced by the generation of surface defects that are comprised of Sn interstitials. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Selective Improvement of NO₂ Gas Sensing Behavior in SnO₂ Nanowires by Ion-Beam Irradiation | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Hyoun Woo | - |
dc.identifier.doi | 10.1021/acsami.6b01619 | - |
dc.identifier.scopusid | 2-s2.0-84973320226 | - |
dc.identifier.wosid | 000377150400054 | - |
dc.identifier.bibliographicCitation | ACS APPLIED MATERIALS & INTERFACES, v.8, no.21, pp.13646 - 13658 | - |
dc.relation.isPartOf | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.title | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.volume | 8 | - |
dc.citation.number | 21 | - |
dc.citation.startPage | 13646 | - |
dc.citation.endPage | 13658 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | INITIO MOLECULAR-DYNAMICS | - |
dc.subject.keywordPlus | THIN-FILMS | - |
dc.subject.keywordPlus | PHOTOLUMINESCENCE PROPERTIES | - |
dc.subject.keywordPlus | SENSOR | - |
dc.subject.keywordPlus | NANOFIBERS | - |
dc.subject.keywordPlus | OXIDES | - |
dc.subject.keywordPlus | FERROMAGNETISM | - |
dc.subject.keywordPlus | DECOMPOSITION | - |
dc.subject.keywordPlus | FABRICATION | - |
dc.subject.keywordPlus | INHALATION | - |
dc.subject.keywordAuthor | nanowires | - |
dc.subject.keywordAuthor | gas sensor | - |
dc.subject.keywordAuthor | ion-beam irradiation | - |
dc.subject.keywordAuthor | SnO2 | - |
dc.subject.keywordAuthor | NO2 | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acsami.6b01619 | - |
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