I was exfoliated graphene on ITO substrate.. During taken my Raman spectra its showing weird to me... I mostly got the G peak was more intense than the 2D even for the mono layer. Instead of getting a sharp 2D peak , I got less intense 2D peak than G one. And shape of the 2D peak is not showing me as i read from the literature's.. Whether i measured on right mono layer or is it any charging (or) doping ??