Fig. 3: Characterization results of the prepared probes.
From: Controlled growth of a single carbon nanotube on an AFM probe

a SEM images of the AFM probes after the pick-up process at different trigger thresholds and b CNT probes obtained after CNT growth. c The relation curve between the trigger thresholds and the diameter of solidified growth solution on the tip. d The relationship between the trigger threshold and the length of CNT when a single CNT is grown on the AFM probe tip. Insets show the SEM images of CNT probes. Scale bar is 500 nm