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DC Field | Value | Language |
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dc.citation.startPage | 148172 | - |
dc.citation.title | CHEMICAL ENGINEERING JOURNAL | - |
dc.citation.volume | 480 | - |
dc.contributor.author | Park, Jonghwa | - |
dc.contributor.author | Ko, Yujung | - |
dc.contributor.author | Cho, Joon Young | - |
dc.contributor.author | Lee, Seungjae | - |
dc.contributor.author | Lee, Youngsu | - |
dc.contributor.author | Han, Joongtark | - |
dc.contributor.author | Ko, Hyunhyub | - |
dc.date.accessioned | 2024-02-15T17:35:11Z | - |
dc.date.available | 2024-02-15T17:35:11Z | - |
dc.date.created | 2024-02-14 | - |
dc.date.issued | 2024-01 | - |
dc.description.abstract | Simultaneously sensing pressure and proximity allows for the detection of contact pressure and the distance of approaching objects. This dual functionality ensures precise human-machine interactions and real-time adaptive responses to dynamic environments, proving it useful in human-machine interfaces, robots, and wearable devices. In this study, we introduce a highly stretchable and strain-insensitive pressure and proximity sensor capable of maintaining its electrical properties under mechanical deformations, achieved by establishing a continuous conductive pathway through an ionic bridge between conductive fillers. The strain-insensitive and stretchable composite exhibits Delta R/R-0 of 0.024 under stretching up to 140% after 1,000 times. When the straininsensitive composite is combined with a micro-patterned insulating layer, the resulting piezoresistive pressure sensors exhibit uniform pressure sensing capability even under mechanical deformations of tensile strain (similar to 50%) and bending curvature (1.3 cm(-1)). Moreover, our pressure sensor can be functioned as a capacitive-type proximity sensor capable of identifying material, shape, and distance of approaching objects with high sensitivity (capacitance change (Delta C/C-0) of -0.88). As a proof-of-concept demonstration, our dual-mode pressure sensor with a multichannel array enables real-time monitoring of contact/noncontact pressure distribution, including intensity, shape, and proximity regardless of mechanical interference and surface roughness. Our approach to achieving high sensitivity and selectivity for desired contact/noncontact stimuli independent of mechanical interferences offers a novel platform for practical sensor applications. | - |
dc.identifier.bibliographicCitation | CHEMICAL ENGINEERING JOURNAL, v.480, pp.148172 | - |
dc.identifier.doi | 10.1016/j.cej.2023.148172 | - |
dc.identifier.issn | 1385-8947 | - |
dc.identifier.scopusid | 2-s2.0-85180535448 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/81397 | - |
dc.identifier.wosid | 001142775700001 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.title | Stretchable ionic composites for strain-insensitive dual-mode pressure and proximity sensors | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental; Engineering, Chemical | - |
dc.relation.journalResearchArea | Engineering | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Strain-insensitive | - |
dc.subject.keywordAuthor | Stretchable | - |
dc.subject.keywordAuthor | Contact/noncontact sensor | - |
dc.subject.keywordAuthor | Electrical bridge | - |
dc.subject.keywordAuthor | Electronic-ionic conductive composite | - |
dc.subject.keywordPlus | TACTILE | - |
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