Research Article

Growth of MWCNTs on Plasma Ion-Bombarded Thin Gold Films and Their Enhancements of Ammonia-Sensing Properties Using Inkjet Printing

Figure 3

AFM topographical images of sputtered Au/Al2O3 films deposited on polished Cu foil (a) after bombarding with Ar ion and (b) after annealing processes.
(a)
(b)