Fig. 5: Mass production of GAFF with the home-made roll-to-roll CVD growth system. | Nature Communications

Fig. 5: Mass production of GAFF with the home-made roll-to-roll CVD growth system.

From: Graphene-skinned alumina fiber fabricated through metalloid-catalytic graphene CVD growth on nonmetallic substrate and its mass production

Fig. 5

a Schematic diagram of home-made roll-to-roll equipment for mass production of GAFF. Arrows represented the direction of movement of the unwinding/rewinding unit. b Photograph of 6 batches of GAFFs with width of ~20 cm and length of ~2 m. c Photograph of the unfolded GAFF from B1. d Raman spectra of 6 batch GAFFs in b. 12 evenly-spaced positions were collected on each GAFF as marked in c with the internal of ~10 cm. e ID/IG and I2D/IG statistics of Raman spectra in d. f, g Sheet resistance statistics (f) and corresponding variation coefficient (g) of GAFFs in b. The error bars represent the standard deviations (n  = 5). Gowth conditions in b–g: 400 sccm CH4, 200 sccm H2, ~1050 °C, and the rotation speed of ~60 mm min−1.

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