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Fabrication of Two-Dimensional Arrays of Micron-Sized Gold Rings Based on Preferential Nucleation at Reentrant Sites |
DONG Wen1,2, GUO Xiang1, WANG Si-Zhen1, WANG Zhen-Lin1, MING
Nai-Ben1 |
| 1National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 2100932Department of Physics, Suzhou University, Suzhou 215006 |
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| Cite this article: |
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DONG Wen, GUO Xiang, WANG Si-Zhen et al 2008 Chin. Phys. Lett. 25 2957-2960 |
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Abstract A templating method for fabricating two-dimensional (2D) arrays of micron-sized gold rings is reported. The microstructures are formed by electroless plating in a through-porous polymer membrane on a silicon substrate obtained from a closed-packed silica colloidal crystal. Our results show that the sizes of gold rings can be altered by varying electroless plating conditions for the porous polystyrene membranes. Moreover, we explain the growth mechanism of gold rings using the classical crystal growth theory that is preferential nucleation at reentrant sites
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| Keywords:
62.23.St
81.10.Aj
78.67.Bf
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Received: 17 April 2008
Published: 25 July 2008
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| PACS: |
62.23.St
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(Complex nanostructures, including patterned or assembled structures)
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81.10.Aj
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(Theory and models of crystal growth; physics and chemistry of crystal growth, crystal morphology, and orientation)
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78.67.Bf
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(Nanocrystals, nanoparticles, and nanoclusters)
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