Fig. 3
From: Direct printing of metal oxide nanostructures for wearable electrochemical sensing
Cross-sectional SEM images showing the layer thickness of printed ZnO and CeO2 coating composed of nanostructured aggregates: (a) ZnO precursor suspension, (b) ZnO printed at 16 kV, (c) ZnO printed at 18 kV, (d) ZnO printed at 20 kV, (e) CeO2 precursor suspension, (f) CeO2 printed at 22 kV, (g) CeO2 printed at 24 kV, and (h) CeO2 printed at 26 kV.
