▎ 摘 要
Large area transfer free graphene films were deposited at low substrate temperature of 380 degrees C by plasma-enhanced chemical vapour deposition (PECVD) using a nickel buffer layer. The Raman spectrum indicated a structure of highly disordered sp(2)-C. The current-voltage characteristics of the films showed ohmic behaviour with sheet resistance of similar to 10.1 k Omega/sq and transmittance of 70% at wavelength of 550 nm. This transfer-free graphene growth technique is reproducible and is promising for applications in devices. (C) 2015 Elsevier B.V. All rights reserved.