Honeycomb-like Periodic Porous LaFeO3 Thin Film Chemiresistors with Enhanced Gas-Sensing Performances
DC Field | Value | Language |
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dc.contributor.author | Dai, Zhengfei | - |
dc.contributor.author | Lee, Chul-Soon | - |
dc.contributor.author | Kim, Bo-Young | - |
dc.contributor.author | Kwak, Chang-Hoon | - |
dc.contributor.author | Yoon, Ji-Wook | - |
dc.contributor.author | Jeong, Hyun-Mook | - |
dc.contributor.author | Lee, Jong-Heun | - |
dc.date.accessioned | 2021-09-05T05:01:18Z | - |
dc.date.available | 2021-09-05T05:01:18Z | - |
dc.date.created | 2021-06-15 | - |
dc.date.issued | 2014-09-24 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/97372 | - |
dc.description.abstract | The use of composite materials and polynary compounds is a promising strategy to promote conductometric sensor performances. The perovskite oxides provide various compositional combinations between different oxides for tuning gas-sensing reaction and endowing rich oxygen deficiencies for preferable gas adsorption. Herein, a sacrificial colloidal template approach is exploited to fabricate crystalline ternary LaFeO3 perovskite porous thin films, by transferring a La3+-Fe3+ hybrid solution-dipped template onto a substrate and sequent heat treatment. The honeycomb-like LaFeO3 film consisted of monolayer periodic pore (size: similar to 500 nm) array can be successfully in situ synthesized in a homogeneous layout with a single phase of perovskite. This periodic porous LaFeO3 film with p-type semiconductivity exhibits a high gas response, fast response (similar to 4 s), trace detection capacity (50 ppb), and favorable ethanol selectivity from similar acetone. It exhibits enhanced sensing performances compared to those of a binary n-type Fe2O3 film and a nontemplated dense LaFeO3 film. In addition, a five-axe spiderweb diagram is introduced to make a feasible evaluation of the optimal practical work condition, comprehensively regarding the response/recovery rate, gas response, selectivity and operating temperature. The enhanced ethanol sensing mechanism of honeycomb-like LaFeO3 periodic porous film is also addressed. This novel and facile route to fabricate well-ordered porous LaFeO3 thin film can also be applied to many fields to obtain special performances, such as solar cells, ion conductors, gas separation, piezoelectricity, and self-powered sensing device system. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | METAL-OXIDE NANOPARTICLES | - |
dc.subject | NANOSTRUCTURES SYNTHESIS | - |
dc.subject | ZNO NANOSTRUCTURES | - |
dc.subject | LOW-TEMPERATURE | - |
dc.subject | SENSORS | - |
dc.subject | SURFACE | - |
dc.subject | SENSITIVITY | - |
dc.subject | SNO2 | - |
dc.subject | NANOCOMPOSITES | - |
dc.subject | FORMALDEHYDE | - |
dc.title | Honeycomb-like Periodic Porous LaFeO3 Thin Film Chemiresistors with Enhanced Gas-Sensing Performances | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Jong-Heun | - |
dc.identifier.doi | 10.1021/am504386q | - |
dc.identifier.scopusid | 2-s2.0-84912051382 | - |
dc.identifier.wosid | 000342328300071 | - |
dc.identifier.bibliographicCitation | ACS APPLIED MATERIALS & INTERFACES, v.6, no.18, pp.16217 - 16226 | - |
dc.relation.isPartOf | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.title | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.volume | 6 | - |
dc.citation.number | 18 | - |
dc.citation.startPage | 16217 | - |
dc.citation.endPage | 16226 | - |
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.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | METAL-OXIDE NANOPARTICLES | - |
dc.subject.keywordPlus | NANOSTRUCTURES SYNTHESIS | - |
dc.subject.keywordPlus | ZNO NANOSTRUCTURES | - |
dc.subject.keywordPlus | LOW-TEMPERATURE | - |
dc.subject.keywordPlus | SENSORS | - |
dc.subject.keywordPlus | SURFACE | - |
dc.subject.keywordPlus | SENSITIVITY | - |
dc.subject.keywordPlus | SNO2 | - |
dc.subject.keywordPlus | NANOCOMPOSITES | - |
dc.subject.keywordPlus | FORMALDEHYDE | - |
dc.subject.keywordAuthor | perovskite structure | - |
dc.subject.keywordAuthor | semiconducting metal oxides | - |
dc.subject.keywordAuthor | micro/nanostructure | - |
dc.subject.keywordAuthor | periodic array | - |
dc.subject.keywordAuthor | gas sensor | - |
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