Fig. 1: Preparation of GGFF. | Nature Communications

Fig. 1: Preparation of GGFF.

From: Multispecies-coadsorption-induced rapid preparation of graphene glass fiber fabric and applications in flexible pressure sensor

Fig. 1

a Schematic of the graphene CVD growing process on GFF with dichloromethane as the precursor. Step I: thermal decomposition of dichloromethane in the vapor phase, step II: adsorption and nucleation of active carbon species on GGF, and step III: growth and coalescence of graphene domains by carbon attachment. b Photographs of large-area bare GFF and GGFFs (with a width of ~25 cm) obtained with the graphene growth times of 0.5, 2, 5, and 10 min (growth parameters: H2/CH2Cl2 ratio of 8:1). c Raman spectra corresponding to GGFFs in (b) (normalized to G peak intensity). d SEM image of the graphene ribbon transferred onto the silicon substrate. The tube-shaped graphene on GGF collapsed into a ribbon after dissolving the GFF core. e Atomic force microscopy (AFM) image and height profile along the dashed orange line of the graphene ribbon transferred onto the silicon substrate, showing ribbon thickness of ~2 nm (twice the thickness of the grown graphene films), corresponding to 1–2 layers of graphene. f Sheet resistance mapping of GGFF (5 cm × 5 cm). Inset: corresponding statistics of sheet resistance.

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