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Title

Thermo-plasmonic effects on E7 nematic liquid crystal

Authors
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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