Uniformly Distributed Graphene Domain Grows on Standing Copper via Low-Pressure Chemical Vapor Deposition
Figure 4
(a) Raman spectrum of monolayer graphene on the (300 nm)/Si wafer (inserted image). The 2D/G ratio is about ~2.6, and the FWHM of the 2D peak is 28.5 . A small D/G peak ratio of 0.22 was introduced during the transfer process. (b) Transmittance of stacked graphene films at nm as a function of the number of stacked graphene layers. (c) Sheet resistance of stacked graphene films as a function of the number of stacked graphene layers before and after being doped by . (d) Variation in the electrical resistance of the graphene film for a bending radius from 10 mm to 4 mm.
