Fig. 4From: Characteristics and Mechanism of Cu Films Fabricated at Room Temperature by Aerosol DepositionSEM micrograph of (a) Cu powders and (b) surface of Al2O3 substrates. SEM micrographs of Cu films deposited on rough Al2O3 substrates with increasing scans: (c) 2, (d) 4, (e) 8, (f) 12, (g) 16, and (h) 20 scansBack to article page