Relation of thickness and deposition time, electron mobility, conductivity, and sheet resistance. (a) The relation of thickness of the graphene films with deposition time. (b) The dependences of electron mobility and conductivity on graphene thickness. (c) The sheet resistance Rs changing with the thickness.
Ma and Zhang Nanoscale Research Letters 2013 8:440 doi:10.1186/1556-276X-8-440