Self-assembled free-standing colloidal crystals
Authors: Chan, Chia-Hua; Chen, Chii-Chang; Huang, Chih-Kai; Weng, Wei-Hsiang; Wei, Hung-Sen; Chen, Hui; Lin, Hsiao-Tsung; Chang, Hsiang-Szu; Chen, Wen-Yen; Chang, Wen-Hao; Hsu, Tzu-Min
Source: Nanotechnology, Volume 16, Number 9, September 2005 , pp. 1440-1444(5)
Publisher: Institute of Physics Publishing
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Abstract:
We propose a novel technique to fabricate a free-standing three-dimensional colloidal crystal by self-assembling the colloidal microspheres with controllable thickness from the airliquid interface. Highly ordered three-dimensional colloidal crystals are formed by polymethylmethacrylate or polystyrene monodisperse microspheres. We also demonstrate the fabrication technique of the free-standing inversed opals by removing the microspheres using calcination. The free-standing colloidal crystal structures can be used for nano-photonic circuits, white-light LEDs or as a photocatalyst.Document Type: Research article
DOI: 10.1088/0957-4484/16/9/003
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