Nitrogen doped graphene has been created at our facilities. Ideal for exfoliation. Nitrogen doping is fixed at 1.5-2% and the lateral sizes of the flakes can reach more than 50 microns. As shown in the images, the flakes are ideal for exfoliation onto SiO2/Si substrates. 

Compared to pristine graphene, Nitrogen doped graphene displays G and 2D peaks at different frequencies.