Introduction of three-dimensional extrinsic defects into colloidal photonic crystals

Yan, Qingfeng, Zhou, Zuocheng and Zhao, X. S. (2005) Introduction of three-dimensional extrinsic defects into colloidal photonic crystals. Chemistry of Materials, 17 12: 3069-3071. doi:10.1021/cm050381l


Author Yan, Qingfeng
Zhou, Zuocheng
Zhao, X. S.
Title Introduction of three-dimensional extrinsic defects into colloidal photonic crystals
Journal name Chemistry of Materials   Check publisher's open access policy
ISSN 0897-4756
1520-5002
Publication date 2005-06
Sub-type Article (original research)
DOI 10.1021/cm050381l
Volume 17
Issue 12
Start page 3069
End page 3071
Total pages 3
Place of publication Washington, DC United States
Publisher American Chemical Society
Language eng
Abstract An effective and simple method for engineering micrometer-scale three-dimensional extrinsic defects within self-assembled colloidal photonic crystals (PC) was demonstrated. The method combines the techniques of self-assembly of colloidal spheres, photolithography on a preformed colloidal crystal, templated-directed colloidal crystal growth, and sequential growth of colloidal crystal. The vertical deposition or spin-coating was employed to grow polystyrene (PS) colloidal crystal within the channels. The PS spheres were synthesized using an emulsifier-free emulsion polymerization technique. Heterostructured colloidal crystals are expected to exhibit elaborate optical properties because of different PBG effects between the host and guest opal structures.
Keyword Monodispersed Spherical Colloids
Well-Defined Sizes
Patterned Surfaces
Planar Defects
Silicon-Wafers
Growth
Complex
Films
Polymerization
Nanoparticles
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
ERA 2012 Admin Only
 
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