Figure 4From: Facile synthesis 3D flexible core-shell graphene/glass fiber via chemical vapor depositionSEM images of graphene films and Raman spectra. (a) (b) (c) SEM images of graphene films grown for 120 min on the plant SiO2(a), SMF (b) and glass fiber (c). (d) Raman spectra obtained from the plant SiO2 substrate (upper) and glass fibers (lower).Back to article page