Synthesis of N-Doped Graphene by Chemical Vapor Deposition and Its Electrical Properties Wei, Dacheng ; Liu, Yunqi ; Wang, Yu ; Zhang, Hongliang ; Huang, Liping ; Yu, Gui Abstract Publication: Nano Letters Pub Date: May 2009 DOI: 10.1021/nl803279t Bibcode: 2009NanoL...9.1752W