Oxidation Prevention Properties of Reduced Graphene Oxide Mixed with 1-Octanethiol-Coated Copper Nanopowder Composites

Figure 9

SEM images showing surface of copper patterns with varying rGO concentrations (wt.%) of (a) Cu : rGO = 100 : 1, (b) Cu : rGO = 500 : 1, and (c) Cu : rGO = 1,000 : 1 and (d) no rGO (only Cu pattern).

(a)

(b)

(c)

(d)