Electrohydrodynamic atomization deposition and patterning of a carbon nano-suspension

In this paper, a 6 wt% carbon nano-suspension was prepared and atomized using electrohydrodynamic atomization technique. The different atomization modes at certain regions of working parameters (applied voltage and flow rate) were studied. In the stable cone-jet mode, the effect of the working distance (distance between needle exit and substrate) on the size and distribution of the deposited relics was examined. It was observed that higher working distance resulted in larger size and higher number density of relics, mainly at the range of 0.2–0.4 µm. A continuous carbon line with the width of ~50 µm was also print-patterned using the electrohydrodynamic atomization deposition technique from the carbon nano-suspension.