Figure 5: Assembling AgNPs into a regular network with the controlled bubbles as a template.

(a–c) Microscope observation of assembly process of AgNPs from the top view. As water evaporated, AgNps assembled between the glass and the patterned substrate. (d) Dark field optical observation of obtained AgNP hexagonal network after peeling off the glass from the patterned substrate. (e–g) Other patterns prepared from corresponding bubble template (Fig. 4a,b,d). (h) Sheet resistance and transparency of AgNP hexagonal network (after heat-treatment) depend on the side length, l, (from 40 to150 μm) and the line width (from 110 to 1,105 nm) of the hexagonal cell. The spots with the same colour or shape have the equal side lengths and different side widths. Scale bars, a–c 30 μm, d 100 μm. e–g 30 μm.