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Liquid Crystal Templated Chiral Plasmonic Films with Dynamic Tunability and Moldability

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cris.lastimport.scopus2024-02-12T20:18:49Z
dc.abstract.enThin films sustaining plasmonic circular dichroism (PCD) have acquired high scientific relevance and a great potential for applications. While most efforts in PCD thin film structures focus on lithographically fabricated static metasurfaces, the bottom-up fabrication of active chiral plasmonic films constitutes an alternative approach. Herein, the preparation of PCD thin films by melting and freezing a mixture of liquid crystal (LC), a chiral dopant, and gold nanoparticles (Au NPs), serving as helical matrix, symmetry breaking inducer, and plasmonic component, respectively is reported. UV–vis and circular dichroism spectroscopies, as well as theoretical modeling are used to disclose the interactions among thin film components, toward maximizing the PCD dissymmetry factor (g-factor). Variation of substrate temperature affords reversible off/on switching of the chiroptical response. The soft nature of LC matrix enables patterning of the films via a thermal nanoimprinting method, using a polydimethylsiloxane mold for transfer-printing onto a flexible substrate, leading to stretchable PCD films. The PCD wavelengths can be readily tuned by varying the geometry of the Au NPs. This work provides an efficient technique to produce PCD thin films with active plasmonic properties and mechanical tunability.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorGrzelak, Dorota
dc.contributor.authorTupikowska, Martyna
dc.contributor.authorParzyszek, Sylwia
dc.contributor.authorRockstuhl, Carsten
dc.contributor.authorBagiński, Maciej
dc.contributor.authorBeutel, Dominik
dc.contributor.authorVila‐Liarte, David
dc.contributor.authorLewandowski, Wiktor
dc.contributor.authorLiz‐Marzán, Luis M.
dc.contributor.authorGóra, Monika
dc.date.accessioned2024-01-25T05:12:11Z
dc.date.available2024-01-25T05:12:11Z
dc.date.copyright2022-01-09
dc.date.issued2022
dc.description.accesstimeBEFORE_PUBLICATION
dc.description.financeŚrodki finansowe, o których mowa w art. 365 pkt. 2 ustawy
dc.description.number16
dc.description.sdgIndustryInnovationAndInfrastructure
dc.description.versionFINAL_PUBLISHED
dc.description.volume32
dc.identifier.doi10.1002/ADFM.202111280
dc.identifier.issn1616-301X
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/111331
dc.identifier.weblinkhttps://onlinelibrary.wiley.com/doi/pdf/10.1002/adfm.202111280
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofAdvanced Functional Materials
dc.relation.pages2111280
dc.rightsCC-BY-NC
dc.sciencecloudnosend
dc.subject.enchiral plasmonics
dc.subject.enchirality transfer
dc.subject.endynamic self-assembly
dc.subject.engold nanoparticles
dc.subject.ennanoarchitectonics
dc.titleLiquid Crystal Templated Chiral Plasmonic Films with Dynamic Tunability and Moldability
dc.typeJournalArticle
dspace.entity.typePublication