I have measured the conductivity of a 2D material. I want to use σ=N⋅e⋅μ to find the mobility μ=σ/(N⋅e). https://en.wikipedia.org/wiki/Electron_mobility#Relation_to_conductivity I have measured N using a spectroscopic/imaging technique to get a Surface Density with units [cm^-2]. Mobility is normally [cm^2/(V⋅s)] but with my N units I get [cm/(V⋅s)]. Does anyone have a good reference for calculating mobility in 2D materials? Do 2D materials have mobility in different units than bulk/3D materials? Thanks for your time.