FIG. 12.
Images of electrohydrodynamic (EHD) jetting modes, including dripping, micro-dripping and cone-jet, as well as the corresponding printed patterns. Flow-rate, working height, printing velocity and nozzle diameter were 0.01–0.04 μL/min, 100 μm, 20 mm/s, and 200 μm, respectively. The voltages applied for the dripping, micro-dripping, and cone-jet modes were 2.0 kV, 2.5 kV, and 2.8 kV, respectively. Reprinted with permission from Jung et al., Organic Electronics 52, 123–129 (2018).128 Copyright 2018 Elsevier.