Basilar membrane-inspired self-powered acoustic sensor enabled by highly sensitive multi tunable frequency band

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dc.contributor.authorHan, Jae Hyunko
dc.contributor.authorKwak, Jun-Hyukko
dc.contributor.authorJoe, Daniel Juhyungko
dc.contributor.authorHong, Seong Kwangko
dc.contributor.authorWang, Hee Seungko
dc.contributor.authorPark, Jung Hwanko
dc.contributor.authorHur, Shinko
dc.contributor.authorLee, Keon Jaeko
dc.date.accessioned2018-11-22T07:06:29Z-
dc.date.available2018-11-22T07:06:29Z-
dc.date.created2018-11-19-
dc.date.created2018-11-19-
dc.date.issued2018-11-
dc.identifier.citationNANO ENERGY, v.53, pp.198 - 205-
dc.identifier.issn2211-2855-
dc.identifier.urihttp://hdl.handle.net/10203/246879-
dc.description.abstractHerein, we report a self-powered flexible piezoelectric acoustic sensor (f-PAS) inspired by basilar membrane in human cochlear. The f-PAS covered the voice frequency spectrum via the combination of its low quality (Q) factor and multi-resonant frequency tuning, exhibiting four to eight times higher sensitivity than the conventional condenser sensor. Our piezoelectric acoustic sensor with a thin membrane design produced sufficient output voltages by the distinct resonant movement of the Pb[Zr0.52Ti0.48]O-3 (PZT) membrane under the minute acoustic sound stimuli. Multiple sensor channels were integrated in a single f-PAS chip with a size of 1.5 x 3 cm(2), which acquire multi-tunable piezoelectric signals without any external power. A linear response of the resonance frequency of the curved piezoelectric membrane was theoretically investigated by a finite element method (FEM) calculation. Low Q factors from corresponding channels were achieved by optimal membrane thickness and channel length.-
dc.languageEnglish-
dc.publisherELSEVIER SCIENCE BV-
dc.subjectHUMAN-MACHINE INTERFACE-
dc.subjectCONDENSER MICROPHONE-
dc.subjectFILM NANOGENERATOR-
dc.subjectNETWORKS-
dc.subjectDEVICES-
dc.subjectNANOSENSORS-
dc.subjectTECHNOLOGY-
dc.subjectDIAPHRAGM-
dc.subjectVOICE-
dc.subjectMEMS-
dc.titleBasilar membrane-inspired self-powered acoustic sensor enabled by highly sensitive multi tunable frequency band-
dc.typeArticle-
dc.identifier.wosid000448994600025-
dc.identifier.scopusid2-s2.0-85052439126-
dc.type.rimsART-
dc.citation.volume53-
dc.citation.beginningpage198-
dc.citation.endingpage205-
dc.citation.publicationnameNANO ENERGY-
dc.identifier.doi10.1016/j.nanoen.2018.08.053-
dc.contributor.localauthorJoe, Daniel Juhyung-
dc.contributor.localauthorLee, Keon Jae-
dc.contributor.nonIdAuthorKwak, Jun-Hyuk-
dc.contributor.nonIdAuthorHong, Seong Kwang-
dc.contributor.nonIdAuthorHur, Shin-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorAcoustic sensor-
dc.subject.keywordAuthorSelf-powered-
dc.subject.keywordAuthorMulti-channel-
dc.subject.keywordAuthorHigh sensitivity-
dc.subject.keywordAuthorTunable resonance frequency-
dc.subject.keywordPlusHUMAN-MACHINE INTERFACE-
dc.subject.keywordPlusCONDENSER MICROPHONE-
dc.subject.keywordPlusFILM NANOGENERATOR-
dc.subject.keywordPlusNETWORKS-
dc.subject.keywordPlusDEVICES-
dc.subject.keywordPlusNANOSENSORS-
dc.subject.keywordPlusTECHNOLOGY-
dc.subject.keywordPlusDIAPHRAGM-
dc.subject.keywordPlusVOICE-
dc.subject.keywordPlusMEMS-
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