Three-dimensional metal dielectric photonic crystal based on self-assembled gold nanoshells

Jin Hyoung Lee; Wounjhang Park

doi:10.1117/12.795041

2 September 2008 Three-dimensional metal dielectric photonic crystal based on self-assembled gold nanoshells

Jin Hyoung Lee, Wounjhang Park

Proceedings Volume 7039, Nanoengineering: Fabrication, Properties, Optics, and Devices V; 703905 (2008) https://doi.org/10.1117/12.795041
Event: NanoScience + Engineering, 2008, San Diego, California, United States

Abstract

Recently developed metal nanoshells are ideal building blocks for metal-dielectric photonic crystals operating in visible and near-infrared spectrum. We applied silica coating to screen the van der Waals force and also added a dispersant to increase the electrostatic repulsive force. We also stabilized the gold nanoshell sterically by using a surfactant. With the use of tetrasodium pyrophosphate as a dispersant and Tween as a surfactant, we successfully obtained highly stable colloidal solution of gold nanoshells and subsequently self-assembled them into highly ordered opal structures. We observed well-defined diffraction pattern in the fast Fourier Transform spectra and optical spectra that match well the theoretical photonic band structure.

Citation Download Citation

Jin Hyoung Lee and Wounjhang Park "Three-dimensional metal dielectric photonic crystal based on self-assembled gold nanoshells", Proc. SPIE 7039, Nanoengineering: Fabrication, Properties, Optics, and Devices V, 703905 (2 September 2008); https://doi.org/10.1117/12.795041

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