9 February 2005 Study of the spectra of silica colloidal crystals with assembled silver obtained from a photolysis method
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Abstract
The colorful artificial 3D silica colloidal crystals (opal) were prepared through self-assembly of silica spheres in the visible frequency range. We directly synthesized nano silver particles in the void of the silica artificial opal film using the photolysis of silver nitrate under UV light, nano silver particles were self-deposited around the surface of silica sphere. The shifts of the stop band of the artificial crystals after exposing different time under UV light were studied. Synthetic silica opal with three-dimensional (3D) structure is potentially useful for the development of diffractive optical devices, micro mechanical systems, and sensory elements because photonic band gaps obtained from self-assembled closely packed periodic structures.
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Wenjiang Li, Wenjiang Li, Jinglong He, Jinglong He, Sailing He, Sailing He, } "Study of the spectra of silica colloidal crystals with assembled silver obtained from a photolysis method", Proc. SPIE 5635, Nanophotonics, Nanostructure, and Nanometrology, (9 February 2005); doi: 10.1117/12.575563; https://doi.org/10.1117/12.575563
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