Description Monolayer Graphene Film on Quartz 4″ wafer Our monolayer graphene on Quartz 4” wafer, fully covered is produced by CVD and transferred to a circular substrate of Quartz (500 μm thickness) by a wet transfer process. Its high quality and wide range of applications make it a benchmark product in the graphene market. Graphene Film Transparency: > 97% Coverage: > 95% Thickness (theoretical): 0.345 nm FET Electron Mobility on Al2O3: 2000 cm2/Vs Hall Electron Mobility on SiO2/Si: 4000 cm2/Vs Sheet Resistance: 370±10 Ohms/sq (cm x 1cm) Grain size: Up to 10 μm Quartz Substrate Thickness: 500 µm Flatness; Bow: 20 µm, Warp: 30 µm Roughness: 6Å (on the polished side) Polished: Double side
