1. A facile approach to fabricate Ni inverse opals at controlled thickness
- Author
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Yi-Jui Huang, Chun-Han Lai, Pu-Wei Wu, and Li Yin Chen
- Subjects
Fabrication ,Materials science ,Mechanical Engineering ,Inverse ,Nanotechnology ,Colloidal crystal ,Condensed Matter Physics ,chemistry.chemical_compound ,Electrophoresis ,Electrophoretic deposition ,chemistry ,Mechanics of Materials ,General Materials Science ,Polystyrene ,Composite material ,Electroplating ,Electrical conductor - Abstract
A vertical electrophoretic deposition method was employed to fabricate polystyrene (PS) colloidal crystals with negligible defects and considerable surface uniformity. Subsequently, the interstitial voids within the colloidal crystals were electroplated with Ni, followed by selective removal of the PS microspheres. With careful adjustment in the processing parameters, we were able to obtain Ni inverse opals at predetermined thickness in relatively short time. The inverse opals revealed superb structural stability and surface uniformity. Because the electrophoresis and electrodeposition were both carried out in a solution state, this fabrication scheme enables facile construction of inverse opals on conductive substrates over conventional approaches.
- Published
- 2009
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