Design Strategy for Transformative Electronic System toward Rapid, Bidirectional Stiffness Tuning using Graphene and Flexible Thermoelectric Device Interfaces

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dc.contributor.authorByun, Sang-Hyukko
dc.contributor.authorKim, Choong Sunko
dc.contributor.authorAgno, Karen-Christianko
dc.contributor.authorLee, Simokko
dc.contributor.authorLi, Zhuoko
dc.contributor.authorCho, Byung-Jinko
dc.contributor.authorJeong, Jae-Woongko
dc.date.accessioned2021-03-30T05:10:17Z-
dc.date.available2021-03-30T05:10:17Z-
dc.date.created2021-03-11-
dc.date.created2021-03-11-
dc.date.issued2021-03-
dc.identifier.citationADVANCED MATERIALS, v.33, no.10-
dc.identifier.issn0935-9648-
dc.identifier.urihttp://hdl.handle.net/10203/282224-
dc.description.abstractElectronics with tunable shape and stiffness can be applied in broad range of applications because their tunability allows their use in either rigid handheld form or soft wearable form, depending on needs. Previous research has enabled such reconfigurable electronics by integrating a thermally tunable gallium-based platform with flexible/stretchable electronics. However, supercooling phenomenon caused in the freezing process of gallium impedes reliable and rapid bidirectional rigid-soft conversion, limiting the full potential of this type of "transformative" electronics. Here, materials and electronics design strategies are reported to develop a transformative system with a gallium platform capable of fast reversible mechanical switching. In this electronic system, graphene is used as a catalyst to accelerate the heterogeneous nucleation of gallium to mitigate the degree of supercooling. Additionally, a flexible thermoelectric device is integrated as a means to provide active temperature control to further reduce the time for the solid-liquid transition of gallium. Analytical and experimental results establish the fundamentals for the design and optimized operation of transformative electronics for accelerated bidirectional transformation. Proof-of-concept demonstration of a reconfigurable system, which can convert between rigid handheld electronics and a flexible wearable biosensor, demonstrates the potential of this design approach for highly versatile electronics that can support multiple applications.-
dc.languageEnglish-
dc.publisherWILEY-V C H VERLAG GMBH-
dc.titleDesign Strategy for Transformative Electronic System toward Rapid, Bidirectional Stiffness Tuning using Graphene and Flexible Thermoelectric Device Interfaces-
dc.typeArticle-
dc.identifier.wosid000611095300001-
dc.identifier.scopusid2-s2.0-85099756752-
dc.type.rimsART-
dc.citation.volume33-
dc.citation.issue10-
dc.citation.publicationnameADVANCED MATERIALS-
dc.identifier.doi10.1002/adma.202007239-
dc.contributor.localauthorCho, Byung-Jin-
dc.contributor.localauthorJeong, Jae-Woong-
dc.contributor.nonIdAuthorLee, Simok-
dc.contributor.nonIdAuthorLi, Zhuo-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorbidirectional stiffness tuning-
dc.subject.keywordAuthorflexible thermoelectric devices-
dc.subject.keywordAuthorgraphene-
dc.subject.keywordAuthorsupercooling of gallium-
dc.subject.keywordAuthortransformative electronics-
dc.subject.keywordPlusNUCLEATION-
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