Galvanic Displacement of Gallium Arsenide Surface: A Simple and Low-Cost Method to Deposit Metal Nanoparticles and Films

Figure 4

XPS spectra (a) in the Ga 3d region and (b) in the As 3d region for GaAs (100) samples immersed in 0.1 mM HAuCl₄ for increasing duration.

(a)

(b)