Effect of substrate and subphase conditions on the surface morphology of graphene oxide sheets prepared by Langmuir-Blodgett technique

- Langmuir monolayer characteristics of GO sheets are highly sensitive to subphase pH.
- Compressible Langmuir monolayers prone to morphological deformation during transfer.
- RCA-1 treatment of Si and SiO2 essential for transfer of flat and adherent GO sheets.
- Microscopic inhomogeneities on Si critically influence the morphology of GO sheets.
- Morphology of GO sheets on SiO2 is insensitive to subphase and transfer conditions.