Hierarchical ZnO Nanowires-loaded Sb-doped SnO2-ZnO Micrograting Pattern via Direct Imprinting-assisted Hydrothermal Growth and Its Selective Detection of Acetone Molecules
DC Field | Value | Language |
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dc.contributor.author | Choi, Hak-Jong | - |
dc.contributor.author | Choi, Seon-Jin | - |
dc.contributor.author | Choo, Soyoung | - |
dc.contributor.author | Kim, Il-Doo | - |
dc.contributor.author | Lee, Heon | - |
dc.date.accessioned | 2021-09-04T04:06:41Z | - |
dc.date.available | 2021-09-04T04:06:41Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2016-01-08 | - |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/89818 | - |
dc.description.abstract | We propose a novel synthetic route by combining imprinting transfer of a Sb-doped SnO2 (ATO)-ZnO composite micrograting pattern (MP), i.e., microstrip lines, on a sensor substrate and subsequent hydrothermal growth of ZnO nanowires (NWs) for producing a hierarchical ZnO NW-loaded ATO-ZnO MP as an improved chemo-resistive sensing layer. Here, ATO-ZnO MP structure with 3-mu m line width, 9-mu m pitch, and 6-mu m height was fabricated by direct transfer of mixed ATO and ZnO nanoparticle (NP)-dispersed resists, which are pre-patterned on a polydimethylsiloxane (PDMS) mold. ZnO NWs with an average diameter of less than 50 nm and a height of 250 nm were quasi-vertically grown on the ATO-ZnO MP, leading to markedly enhanced surface area and heterojunction composites between each ATO NP, ZnO NP, and ZnO NW. A ZnO NW-loaded MP sensor with a relative ratio of 1: 9 between ATO and ZnO (1: 9 ATO-ZnO), exhibited highly sensitive and selective acetone sensing performance with 2.84-fold higher response (R-air/R-gas = 12.8) compared to that (R-air/R-gas = 4.5) of pristine 1: 9 ATO-ZnO MP sensor at 5 ppm. Our results demonstrate the processing advantages of direct imprinting-assisted hydrothermal growth for large-scale homogeneous coating of hierarchical oxide layers, particularly for applications in highly sensitive and selective chemical sensors. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.subject | GAS SENSOR | - |
dc.subject | SENSING PROPERTIES | - |
dc.subject | NANOIMPRINT LITHOGRAPHY | - |
dc.subject | TIN OXIDE | - |
dc.subject | DIAGNOSIS | - |
dc.subject | NANOPARTICLES | - |
dc.subject | NANOSTRUCTURES | - |
dc.subject | NANOFIBERS | - |
dc.subject | SHELL | - |
dc.title | Hierarchical ZnO Nanowires-loaded Sb-doped SnO2-ZnO Micrograting Pattern via Direct Imprinting-assisted Hydrothermal Growth and Its Selective Detection of Acetone Molecules | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Heon | - |
dc.identifier.doi | 10.1038/srep18731 | - |
dc.identifier.scopusid | 2-s2.0-84953923946 | - |
dc.identifier.wosid | 000368736200001 | - |
dc.identifier.bibliographicCitation | SCIENTIFIC REPORTS, v.6 | - |
dc.relation.isPartOf | SCIENTIFIC REPORTS | - |
dc.citation.title | SCIENTIFIC REPORTS | - |
dc.citation.volume | 6 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalWebOfScienceCategory | Multidisciplinary Sciences | - |
dc.subject.keywordPlus | GAS SENSOR | - |
dc.subject.keywordPlus | SENSING PROPERTIES | - |
dc.subject.keywordPlus | NANOIMPRINT LITHOGRAPHY | - |
dc.subject.keywordPlus | TIN OXIDE | - |
dc.subject.keywordPlus | DIAGNOSIS | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | NANOSTRUCTURES | - |
dc.subject.keywordPlus | NANOFIBERS | - |
dc.subject.keywordPlus | SHELL | - |
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