Controllable Fabrication of Au-Coated AFM Probes via a Wet-Chemistry Procedure

Table 1 The SEM images of probes and corresponding experimental conditions

Probe immersion time	Au deposition time (min)	Time of immersion cycle	Total time (min)
Fig. 2a (30 nm)	10	1	10
Fig. 2b (40 nm)	5	2	10
Fig. 2c (50 nm)	15	1	15
Fig. 2d (75 nm)	5	3	15
Fig. 2e (60 nm)	30	1	30
Fig. 2f (150 nm)	5	6	30