Figure 2.

Profilometric data of unsintered pillars printed with a drop to drop (DtoD) delay of 4.1 (red) and 7.5 s (blue) on a heated sample stage (60 °C) and nozzle plate (55 °C). 50 to 1000 droplets of AgNP ink were printed and the pillar’s (a) height, (b) pillar width, and (c) pillar tip width were measured. (d) Relative change in height between sintered and unsintered pillars for both DtoD delays. The average height reduction ratio (solid lines) and standard deviation (dashed lines and shaded areas) for each number of droplets was calculated using 8 pillars. A linear fit with a set y-intercept at a height of zero was applied to (a) showing an incline of 262 ± 6 nm droplet⁻¹ (blue) and 311 ± 11 nm droplet⁻¹ (red).