Fig. 4From: Evolution of Self-Assembled Au NPs by Controlling Annealing Temperature and Dwelling Time on Sapphire (0001)Evolution of the self-assembled Au NPs with the variation of annealing temperature between 700 and 900 °C. a–c AFM top views of 3 × 3 μm2. (a-1)–(c-1) AFM top views of 1 × 1 μm2. (a-2)–(c-2) Corresponding side views. (a-3)–(c-3) Cross-sectional line profiles. (a-4)–(c-4) FFT power spectraBack to article page