We formalized the concept of a "minimum assumption credible design" (MACD) to leverage available local information (topography/bathymetry and existing infrastructure) and the essential engineering knowledge and required construction materials (i.e., a design cross-section template).
A scanning electron microscopy (ESEM) image of a PFO nanopillar array acquired after the template dissolution is shown in Figure 1b. Figure 1 ESEM images of a top view of the self-ordered alumina template ( Inset : cross section of the template), b PFO nanopillars after removing the template.
Formation of nanotube and nanowire morphology was confirmed by Scanning Electron Microscope (SEM) analysis of the cross section of templates.
(e) and (f) are the front and cross section of the AAO template, respectively.
Figure 1a shows a well-ordered array of circularly shaped holes with a pore diameter of 67 nm. Figure 1b is the cross section of this PAA template, with a thickness of approximately 200 nm.
(a) Ultrathin PAA template, (b) cross section of the PAA, (c) Fe3O4 nanodot array together with a partially removed PAA template, and Fe3O4 nanodot arrays with various sizes - the average dot sizes and inter-dot periods are (d) approximately 40 and approximately 67 nm, (e) approximately 70 and approximately 115 nm, and (f) approximately 140 and approximately 160 nm, respectively.
Figure 2 Surface topography of AAO templates and the cross section of the nanobrush.
After electrodeposition, nanowire-embedded AAO template was cleaved and the cross section was observed using an optical microscope (BX51M, Olympus, Olympus America, Inc., Center Valley, PA, USA) to verify the large-area length uniformity of the nanowires.
b Surgical template and sleeve were seen in cross section.
Photographs of the silicon template: (d) general top view and (e) cross section.
Energy dispersive X-ray analysis was performed on the cross section of the NW array before removal of the alumina template.
