This product contains graphene oxide (GOs) mono- and few-layer flakes solution in ethanol. The GOs solution has been developed by ultrasonic treatment of GOs high quality crystals synthesized through CVD (graphite production) followed by Hummer’s method. Since the starting material graphite is highly crystalline, ultrasonic treatment to delaminate GOs layers yields highly crystalline GOs mono-, few-, and some thick layers suspended in ethanol solution. The crystallinity of GOs nanomaterials has been confirmed through electron energy dispersive spectroscopy (EDAX), Raman spectroscopy (FWHM<6cm-1), and scanning electron microscopy (SEM) measurements. Lateral sizes of GOs flakes deposited onto different substrates range from ~25nm - ~10 um while thickness range from 1L to 10s of layers. 

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