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Table 3 Results of XPS investigations, with surface concentrations given in atomic % (at%), performed for a dried deposit of GO dispersion (intensively rinsed with water), pristine sapphire, a G50/sapphire film (sample G50-17h), and a GO/G50/sapphire film

From: Interfactant action of an amphiphilic polymer upon directing graphene oxide layer formation on sapphire substrates

Sample Element
F Mn O S C N Al
Dried GO dispersion 0.2 ± 0.3 22.5 ± 0.4 0.1 ± 0.1 76.5 ± 0.5 0.5 ± 0.1
Pristine sapphire 1.0 ± 0.1 44.2 ± 0.1 20.5 ± 0.4 0.2 ± 0.1 33.9 ± 0.1
 G50/sapphire 0.3 ± 0.1 27.0 ± 0.7   55.9 ± 2.3 0.5 ± 0.1 16.0 ± 1.6
 GO/G50/sapphire 0.3 ± 0.1 30.0 ± 0.4 0.6 ± 0.1 61.6 ± 0.9 0.6 ± 0.1 7.3 ± 1.7