6533b85efe1ef96bd12bfe33
RESEARCH PRODUCT
Supramolecular control of liquid crystals by doping with halogen-bonding dyes
Antti SiiskonenJaana VapaavuoriJaana VapaavuoriAlessandra ForniMarco SacconeChristian PellerinArri PriimagiTullio PilatiValentina DichiaranteAtsushi ShishidoPierangelo MetrangoloPierangelo Metrangolosubject
Materials scienceGeneral Chemical EngineeringHalogen Bonding Polymers Liquid Crystals Photoresponsive Materials Supramolecular Chemistry116 Chemical sciencesSupramolecular chemistryphotonicsPhysics::OpticsNanotechnology02 engineering and technology010402 general chemistry01 natural sciencesPhotonic metamaterialPhotochromismliquid crystalsLiquid crystalCondensed Matter::Superconductivitydye-doped liquid crystalsta116ta215Halogen bondDopantbusiness.industryDopingGeneral Chemistry021001 nanoscience & nanotechnologysupramolecular interactions0104 chemical sciencesCondensed Matter::Soft Condensed Matterhalogen bondingOptoelectronicsSettore CHIM/07 - Fondamenti Chimici Delle TecnologiePhotonics0210 nano-technologybusinessdescription
Introducing photochromic or polymeric dopants into nematic liquid crystals is a well-established method to create stimuli-responsive photonic materials with the ability to "control light with light". Herein, we demonstrate a new material design concept by showing that specific supramolecular interactions between the host liquid crystal and the guest dopants enhance the optical performance of the doped liquid crystals. By varying the type and strength of the dopant-host interaction, the phase-transition temperature, the order parameter of the guest molecules, and the diffraction signal in response to interference irradiation, can be accurately engineered. Our concept points out the potential of supramolecular interactions in liquid-crystal photonics, being valuable for optimizing the design of dye-doped functional liquid-crystalline systems. publishedVersion Peer reviewed
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-08-01 | RSC Advances |