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Updated: Apr 23, 2026
Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics
Published on: May 28, 2016
Active liquid crystal tuning of metallic nanoantenna enhanced light emission from colloidal quantum dots
Aimi Abass1, Said Rahimzadeh-Kalaleh Rodriguez, Thomas Ako
1Solar Cells Group, Department of Electronic and Information Systems (ELIS), Ghent University , Sint-Pietersnieuwstraat 41, B-9000 Ghent, Belgium.
Abstract:
A system comprising an aluminum nanoantenna array on top of a luminescent colloidal quantum dot waveguide and covered by a thermotropic liquid crystal (LC) is introduced. By heating the LC above its critical temperature, we demonstrate that the concomitant refractive index change modifies the hybrid plasmonic-photonic resonances in the system. This enables active control of the spectrum and directionality of the narrow-band (∼6 nm) enhancement of quantum dot photoluminescence by the metallic nanoantennas.
