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Chiral columns forming a lattice with a giant unit cell

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dc.abstract.enMesogenic materials, quinoxaline derivatives with semi-flexible cores, are reported to form a new type of 3D columnar phase with a large crystallographic unit cell and Fddd lattice below the columnar hexagonal phase. The 3D columnar structure is a result of frustration imposed by the arrangement of helical columns of opposite chiralities into a triangular lattice. The studied materials exhibit fluorescence properties that could be easily tuned by modification of the molecular structure; for compounds with the extended π electron conjugated systems the fluorescence is quenched. For molecules with a flexible structure the fluorescence quantum yield reaches 25%. On the other hand, compounds with a more rigid mesogenic core, for which the fluorescence is suppressed, show effective photogeneration of charge carriers. For some materials bi-polar hole and electron transport was observed
dc.affiliationUniwersytet Warszawski
dc.contributor.authorPociecha, Damian
dc.contributor.authorSzydłowska, Jadwiga
dc.contributor.authorKrówczyński, Adam
dc.contributor.authorRybak, Paulina
dc.contributor.authorGórecka, Ewa
dc.date.accessioned2024-01-24T19:23:48Z
dc.date.available2024-01-24T19:23:48Z
dc.date.issued2022
dc.description.financePublikacja bezkosztowa
dc.description.number10
dc.description.volume18
dc.identifier.doi10.1039/D1SM01585K
dc.identifier.issn1744-683X
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/103014
dc.identifier.weblinkhttp://pubs.rsc.org/en/content/articlepdf/2022/SM/D1SM01585K
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofSoft Matter
dc.relation.pages2006-2011
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleChiral columns forming a lattice with a giant unit cell
dc.typeJournalArticle
dspace.entity.typePublication