AlGaN/GaN heterojunction hydrogen sensor using ZnO-nanoparticles/Pd dual catalyst layer
DC Field | Value | Language |
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dc.contributor.author | Choi, J.-H. | - |
dc.contributor.author | Park, T. | - |
dc.contributor.author | Hur, J. | - |
dc.contributor.author | Cha, H.-Y. | - |
dc.date.available | 2020-11-27T07:40:12Z | - |
dc.date.created | 2020-10-12 | - |
dc.date.issued | 2020-12 | - |
dc.identifier.issn | 0925-4005 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/79093 | - |
dc.description.abstract | ZnO-nanoparticles (NPs) were investigated for improving the response characteristics of a Pd-functionalized AlGaN/GaN heterojunction-based hydrogen gas sensor. The ZnO-NPs of diameter ∼10 nm were dispersed in a co-solvent of chloroform/ethanol (chloroform 75 %, v/v), which was found to be an optimal solution for uniform dispersion, and spin coated on the surface of the fabricated Pd/AlGaN/GaN hydrogen sensor. The ZnO-NP synthesis and dispersion methods were optimized carefully before being applied to sensor fabrication. It was observed that the addition of ZnO-NPs to the Pd catalyst enhanced the hydrogen absorption so that the response of the hydrogen sensor was improved. Compared with the single Pd catalyst layer, the ZnO-NPs/Pd double layer exhibited superior response characteristics—a response of ∼210 % and response time of ∼2 s were achieved at 200 °C with a bias voltage of 3 V. © 2020 Elsevier B.V. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.relation.isPartOf | SENSORS AND ACTUATORS B-CHEMICAL | - |
dc.title | AlGaN/GaN heterojunction hydrogen sensor using ZnO-nanoparticles/Pd dual catalyst layer | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000581627000048 | - |
dc.identifier.doi | 10.1016/j.snb.2020.128946 | - |
dc.identifier.bibliographicCitation | SENSORS AND ACTUATORS B-CHEMICAL, v.325 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-85091950861 | - |
dc.citation.title | SENSORS AND ACTUATORS B-CHEMICAL | - |
dc.citation.volume | 325 | - |
dc.contributor.affiliatedAuthor | Park, T. | - |
dc.contributor.affiliatedAuthor | Hur, J. | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | AlGaN/GaN heterojunction | - |
dc.subject.keywordAuthor | Hydrogen sensor | - |
dc.subject.keywordAuthor | Nanoparticle synthesis | - |
dc.subject.keywordAuthor | Pd catalyst | - |
dc.subject.keywordAuthor | ZnO nanoparticle | - |
dc.subject.keywordPlus | Aluminum gallium nitride | - |
dc.subject.keywordPlus | Catalyst supports | - |
dc.subject.keywordPlus | Chemical sensors | - |
dc.subject.keywordPlus | Chlorine compounds | - |
dc.subject.keywordPlus | Dispersions | - |
dc.subject.keywordPlus | Gallium nitride | - |
dc.subject.keywordPlus | Heterojunctions | - |
dc.subject.keywordPlus | Hydrogen | - |
dc.subject.keywordPlus | II-VI semiconductors | - |
dc.subject.keywordPlus | III-V semiconductors | - |
dc.subject.keywordPlus | Metal nanoparticles | - |
dc.subject.keywordPlus | Nanocatalysts | - |
dc.subject.keywordPlus | Organic solvents | - |
dc.subject.keywordPlus | Oxide minerals | - |
dc.subject.keywordPlus | Palladium | - |
dc.subject.keywordPlus | Palladium compounds | - |
dc.subject.keywordPlus | Zinc oxide | - |
dc.subject.keywordPlus | AlGaN/GaN heterojunction | - |
dc.subject.keywordPlus | Dispersion methods | - |
dc.subject.keywordPlus | Hydrogen absorption | - |
dc.subject.keywordPlus | Hydrogen gas sensors | - |
dc.subject.keywordPlus | Nanoparticle (NPs) | - |
dc.subject.keywordPlus | Response characteristic | - |
dc.subject.keywordPlus | Sensor fabrication | - |
dc.subject.keywordPlus | Uniform dispersions | - |
dc.subject.keywordPlus | ZnO nanoparticles | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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