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In this work, nanowire forests are fabricated by using a plasma repolymerization technique. The fabrication process involves only spin-coating of polyimide and plasma bombardment of the polymer, the whole process is lithography-free, micromachining-compatible and extra simple. Besides, the nanowire forests can further be utilized as nanomasks in reactive ion etching for nanopillar-nanowire composite...
This paper reports a three-step fabrication method for highly ordered silica nanowire bunch arrays of diversiform shapes. After patterning of organic polymers on Si substrates through photo lithography, oxygen plasma bombardment is applied to fabricate nanowire bunch arrays. On one hand, oxygen plasma exploits Si source from the substrates, and, subsequently, the gaseous Si react with active oxygen...
Molecular sensor fabrication requires the development of methods to produce nanostructures and transfer them onto useful substrates. This paper will briefly describe methods of patterning and printing of highly oriented pyrolytic graphite (HOPG). HOPG has been patterned at the micron and ∼100 nanometer scale, using oxygen plasma etching and phase-shift lithography, respectively. The micron scale patterned...
In this work, a directed assembly technique for controlled micro-patterning of single-walled carbon nanotubes (SWNTs) on to a flexible parylene-C substrate has been demonstrated. A simple site-selective fluidic assembly of SWNTs has been utilized to directly assemble SWNTs on a plasma treated parylene-C substrate to form ordered high density carbon nanotube networks. Continuous nanotube micro-arrays...
Novel dual-scaled superhydrophobic nano-flower surfaces were fabricated by 1-mask photolithography, DRIE and carbon nanotube (CNT) microwave plasma enhanced CVD (MPCVD). Patterned structure was characterized by SEM, TEM and AFM techniques. With the additional petal-like CNT structure, the apparent contact angle (ACA) increased dramatically compared with silicon (~140%) and parylene-coated (~78%) micropillar...
Assembly of colloidal arrays has attracted much attention over the past decade. Surface property and topology play important roles in the assembly of colloidal patterns and layers on various substrates. In this paper, we report on a novel micropattern-assisted nanoassembly (muPAN) method to organize highly ordered nanocolloidal arrays onto a nonfouling polymer surface. Polyethylene glycol (PEG) hydrogel...
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