Highly organized single-walled carbon nanotube networks and method of making using template guided fluidic assembly

A method for fabricating a nanofilm, comprising the steps of:

• providing a template for fabricating a nanofilm, the template comprising a substrate comprising an upper hydrophobic surface and one or more nanoscale trenches, the trenches comprising hydrophobic sidewalls below the upper hydrophobic surface and a bottom plasma-etched, to provide roughened hydrophilic surface;
• submersing the template or a portion thereof in a suspension of single-walled carbon nanotubes (SWNT) in a polar solvent;
• and
• pulling the submersed template or portion thereof up through an air-water interface of the suspension, whereby SWNT from the suspension become aligned in the trenches to form a nanofilm within the trenches.