| Abstract Scope |
In recent years, attention has been paid to gold nanorods (GNRs) due to their unique shape-dependent properties, such as multiple plasmon bands that can be separately activated by incident light polarization [1]. However, for the maximum efficiency of a device based on the excitation of the GNRs localized surface plasmon resonance, GNRs need to be well aligned. We show that using oriented linear arrays of smectic A defects, the so-called oily streaks, enables the orientation of GNRs for a large range of diameters and various ligands. We obtained electromagnetic coupling of nanorods, which we have demonstrated through light polarization [2].
[1] Perez-Juste J. et al., Gold Nanorods: Synthesis, Characterization and Applications, Chem. Rev. 249, 1870 (2005)
[2] Rožič, B. et al., Oriented Gold Nanorods and Gold Nanorod Chains within Smectic Liquid Crystal Topological Defects, ACSNano 11, 6728 (2017) |