Study of the spectra of silica colloidal crystals with assembled silver obtained from a photolysis method

Wenjiang Li; Jinglong He; Sailing He

doi:10.1117/12.575563

9 February 2005 Study of the spectra of silica colloidal crystals with assembled silver obtained from a photolysis method

Wenjiang Li, Jinglong He, Sailing He

Author Affiliations +

Proceedings Volume 5635, Nanophotonics, Nanostructure, and Nanometrology; (2005) https://doi.org/10.1117/12.575563
Event: Photonics Asia, 2004, Beijing, China

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.

Citation Download Citation

Wenjiang Li, Jinglong He, and 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); https://doi.org/10.1117/12.575563

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