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Park, Jung-Hoon
Bio-Optics Lab.
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dc.citation.endPage 394 -
dc.citation.startPage 385 -
dc.citation.title NATURE MATERIALS -
dc.citation.volume 20 -
dc.contributor.author Oh, Jongwon -
dc.contributor.author Baek, Daehye -
dc.contributor.author Lee, Tae Kyung -
dc.contributor.author Kang, Dongwon -
dc.contributor.author Hwang, Hyeri -
dc.contributor.author Go, Eun Min -
dc.contributor.author Jeon, Inkyu -
dc.contributor.author You, Younghoon -
dc.contributor.author Son, Changil -
dc.contributor.author Kim, Dowon -
dc.contributor.author Whang, Minji -
dc.contributor.author Nam, Kibum -
dc.contributor.author Jang, Moonjeong -
dc.contributor.author Park, Jung-Hoon -
dc.contributor.author Kwak, Sang Kyu -
dc.contributor.author Kim, Jungwook -
dc.contributor.author Lee, Jiseok -
dc.date.accessioned 2023-12-21T16:12:28Z -
dc.date.available 2023-12-21T16:12:28Z -
dc.date.created 2020-10-05 -
dc.date.issued 2021-03 -
dc.description.abstract Polymeric materials have been used to realize optical systems that, through periodic variations of their structural or optical properties, interact with light-generating holographic signals. Complex holographic systems can also be dynamically controlled through exposure to external stimuli, yet they usually contain only a single type of holographic mode. Here, we report a conjugated organogel that reversibly displays three modes of holograms in a single architecture. Using dithering mask lithography, we realized two-dimensional patterns with varying cross-linking densities on a conjugated polydiacetylene. In protic solvents, the organogel contracts anisotropically to develop optical and structural heterogeneities along the third dimension, displaying holograms in the form of three-dimensional full parallax signals, both in fluorescence and bright-field microscopy imaging. In aprotic solvents, these heterogeneities diminish as organogels expand, recovering the two-dimensional periodicity to display a third hologram mode based on iridescent structural colours. Our study presents a next-generation hologram manufacturing method for multilevel encryption technologies.
Periodic patterns with varying cross-linking densities are realized in conjugated polydiacetylene films, creating multiple holographic images-all dynamically responsive to exposure to various solvents-simultaneously in the same polymeric structures.
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dc.identifier.bibliographicCitation NATURE MATERIALS, v.20, pp.385 - 394 -
dc.identifier.doi 10.1038/s41563-020-00866-4 -
dc.identifier.issn 1476-1122 -
dc.identifier.scopusid 2-s2.0-85098790418 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/48326 -
dc.identifier.url https://www.nature.com/articles/s41563-020-00866-4 -
dc.identifier.wosid 000604900600006 -
dc.language 영어 -
dc.publisher Nature Publishing Group -
dc.title Dynamic multimodal holograms of conjugated organogels via dithering mask lithography -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.type.docType Article -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordPlus PHOTONIC CRYSTALS -
dc.subject.keywordPlus STRUCTURAL COLOR -
dc.subject.keywordPlus SPECTRUM -
dc.subject.keywordPlus FILMS -
dc.subject.keywordPlus POLYMERIZATION -
dc.subject.keywordPlus SENSORS -

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