Kelvin Probe Imaging of Graphene

AFM/KPM imaging of graphene/Si. The Graphene is connected with a gold electrode biased with 1.5v.

AFM Height image shows the graphene structure (upper right corner).

 Contact Potential Difference of the Graphene/Si interface. 

 

   Height Prfile
   CPD

Performed with Nanonics unique ultrastable Nano-wire glass insulated electrical probe.

 

  • Ultrastable solid wire electrical probes q Ultra-Sensitive Tuning Fork Normal Force feedback
  • Geometrical friendly for online multiprobe all under active AFM feedback.
  • Low contact resistance and full insulation with glass upto the probe tip for high electro-potential resolution
  • Glass coating insulation can be overcoated with metal to emulate coax geometries for ultrahigh sensitivity electrical imaging
  • High cantilever design that minimizes cantilever electrical interference
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