SEM images of as-deposited and annealed Au thin films of different thicknesses on GaAs(111)B substrates. (a to e) Substrates with as-deposited Au thin films. (f to j) Substrates with Au thin film annealed at 600°C for 10 min. (k to o) Substrates with Au thin film annealed at 650°C for 10 min. The thicknesses of the Au thin films are 0.5, 1, 2, 3, and 5nm for (a to e), (f to j), and (k to o), respectively.
Xu et al. Nanoscale Research Letters 2012 7:589 doi:10.1186/1556-276X-7-589