Abstract
In this paper, we discuss a method to transform traditional-lithography micro patterns into nano-structures by self-assembly of nano-beads. In our approach, the destined substrate is prepared with hydrophilic micro patterns on hydrophobic background. Colloid with nano-beads wets exclusively the hydrophilic patterns due to interfacial forces when passing through air-water interface. After evaporation of water from the colloid, three-dimensional nano-bead structures are formed. A geometric model is proposed to describe this self-assembly process and its dependence on bead size, concentration, and pattern geometry, which can provide control over the aggregation of three-dimensional nano-structures.
| Original language | English |
|---|---|
| Pages (from-to) | 621-624 |
| Number of pages | 4 |
| Journal | Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS) |
| Publication status | Published - 2004 Jul 19 |
| Event | 17th IEEE International Conference on Micro Electro Mechanical Systems (MEMS): Maastricht MEMS 2004 Technical Digest - Maastricht, Netherlands Duration: 2004 Jan 25 → 2004 Jan 29 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Mechanical Engineering
- Electrical and Electronic Engineering
Cite this
Xiong, X., Wang, K., & Böhringer, K. F. (2004). From micro-patterns to nano-structures by controllable colloidal aggregation at air-water interface. Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS), 621-624.