carrier density

[yogita taluja]

hello..
  I want to find carrier density of  nitrogen doped graphene sheet,  plz suggest me some method.. reply me as soon as possible ...
 regard
yogita

[Jess Wellendorff]

Perhaps the current density is what you are looking for: http://www.quantumwise.com/documents/manuals/latest/ReferenceManual/index.html/ref.currentdensity.html.

You might also have a look at the paragraph "IV curve" in http://quantumwise.com/publications/tutorials/item/837-inelastic-transmission.