▎ 摘　　要

Here the authors present the investigation of controllable growth of large area high quality graphene from different solid carbon sources. A home-made cold-wall chamber is used for chemical vapor deposition realization to grow graphene on copper foils. It is supplied with tools for in situ monitoring the temperature along the entire sample. Monolayer graphene films are synthesized using solid poly(methyl methacrylate) (PMMA) and paraffin precursors at a growth temperature of about 850 degrees C and under low pressure conditions. The area of 1 x 1 cm(2) appears to be covered by graphene. Raman spectroscopy and scanning electron microscopy are used to estimate the quality of graphene films fabricated and the graphene layer number.