Title: Comparative analysis of SiO_2 colloidal crystals prepared by evaporation self-assembly at different angles
Abstract: Three different self-assembly methods,including level,oblique and vertical evaporation were used to prepare colloidal photonic crystals with 784 nm SiO2 microspheres. The differences,advantages and disadvantages of colloidal crystals under three preparation conditions were compared,optical properties of the sample prepared under vertical condition were characterized, and the forming mechanism of the self-assembly process of colloidal crystals was analyzed. The results show that for the preparation of larger microsphere size SiO2 colloidal crystals,the level conditions are suitable for the preparation of two-dimensional colloidal crystals,and oblique and vertical conditions can prepare larger,high-quality three-dimensional colloidal crystals.
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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