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|Title:||Introduction of three-dimensional extrinsic defects into colloidal photonic crystals|
|Authors:||Yan, Q. |
|Citation:||Yan, Q., Zhou, Z., Zhao, X.S. (2005-06-14). Introduction of three-dimensional extrinsic defects into colloidal photonic crystals. Chemistry of Materials 17 (12) : 3069-3071. ScholarBank@NUS Repository. https://doi.org/10.1021/cm050381l|
|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.|
|Source Title:||Chemistry of Materials|
|Appears in Collections:||Staff Publications|
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