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Thermo-plasmonic effects on E7 nematic liquid crystal

Palermo, Giovanna
Pezzi, Luigia
Umeton, Cesare
De Luca, Antonio
Published in Molecular Crystals and Liquid Crystals. 2017, vol. 649, no. 1, p. 45-49
Abstract The photo-induced heating from a layer of uniformly distributed gold nanoparticles has been characterized to investigate the impact of a direct interaction of the metallic nanostructures with a drop of E7 nematic liquid crystal. A double effect is obtained: an increase of the photo-induced heating due to a change in the refractive index of the medium surrounding the nanoparticles (from air to E7) and a new way of exploiting this heating to induce a phase transition of the E7 NLC (from anisotropic to isotropic phase), with a significant decrease of the necessary energy density in the case of an impinging green radiation.
Keywords Thermo-plasmonicsLiquid crystalsHeat transferGold nanoparticlesPhoto-heating
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PALERMO, Giovanna et al. Thermo-plasmonic effects on E7 nematic liquid crystal. In: Molecular Crystals and Liquid Crystals, 2017, vol. 649, n° 1, p. 45-49. doi: 10.1080/15421406.2017.1303901 https://archive-ouverte.unige.ch/unige:142310

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Deposited on : 2020-09-30

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