The differences of physicochemical characteristics of graphene-like nanomaterials directly grown on copper foil and quartz substrate in chemical vapor deposition (CVD)

The preparation of graphene material is possibly conducted using chemical vapor deposition (CVD) method using hydrogen, argon, and acetylene gases using a copper substrate. The use of different substrates, especially glass-based substrates, has not been widely studied. Therefore, in the present study, we analyzed the chemical and physical characteristics of the carbon materials grown in CVD on a different substrate, i.e., copper foil and quartz substrate. The XRD analysis of the carbon materials produced shows a definitive peak for carbon which is in broad feature and left-shifted to 2θ around 23°. Raman spectroscopy's characterization shows that the material grown on copper foil revealed a 2D band, appearing around 2600 cm⁻¹, which was absent for the carbon material deposited on the quartz substrate. Physically, the carbon powder produced is hydrophobic, light, and black. The structural character of the graphene material observed by using the electron microscope consists of overlapped layers. The FTIR analysis shows that the material growth on copper foil and quartz substrate has C=C bond, concluded that the material produced as graphene-like nanomaterials.