Please use this identifier to cite or link to this item: https://doi.org/10.1039/c2jm34896a
Title: Highly ordered and gap controllable two-dimensional non-close-packed colloidal crystals and plasmonic-photonic crystals with enhanced optical transmission
Authors: Cai, Z.
Liu, Y.J.
Leong, E.S.P.
Teng, J.
Lu, X. 
Issue Date: 21-Dec-2012
Source: Cai, Z., Liu, Y.J., Leong, E.S.P., Teng, J., Lu, X. (2012-12-21). Highly ordered and gap controllable two-dimensional non-close-packed colloidal crystals and plasmonic-photonic crystals with enhanced optical transmission. Journal of Materials Chemistry 22 (47) : 24668-24675. ScholarBank@NUS Repository. https://doi.org/10.1039/c2jm34896a
Abstract: We present a facile one-step co-self-assembly method for the fabrication of two-dimensional (2D) non-close-packed (ncp) colloidal crystals (CCs) using polystyrene (PS) colloidal spheres and tetraethylorthosilicate (TEOS) sol. The resultant 2D ncp CCs demonstrated long-range ordering at the centimeter-scale without cracks due to the addition of TEOS sol. The inter-particle gap of the ncp CCs can be easily controlled by varying the amount of TEOS sol added during the assembly process. The crack-free 2D CCs were employed to form hybrid plasmonic-photonic crystals by depositing a thin film of gold. Experimental and simulated transmission spectra of the hybrid plasmonic-photonic crystals were found to be in good agreement. This simple and low-cost method provides a platform for the fabrication of high-quality 2D ncp CCs and may facilitate the development of various applications of ncp CCs. © The Royal Society of Chemistry 2012.
Source Title: Journal of Materials Chemistry
URI: http://scholarbank.nus.edu.sg/handle/10635/64023
ISSN: 09599428
DOI: 10.1039/c2jm34896a
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