期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 22, 期 47, 页码 24668-24675出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2jm34896a
关键词
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资金
- Ministry of Education Singapore [R279-000-298-112]
- Agency for Science, Technology and Research (A*STAR) [0921540099, 0921540098]
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.
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