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Multipoint Raman spectra included on CD ROM
Typical Raman spectrum of a single layer film Transferred on PET
Explanation of Raman spectrum
- Raman spectroscopy is used to check the presence of a D peak in graphene samples. If a D peak is present, then this can indicate defects in the sample, such as cracks or flaking.
- The ratio of the heights of the 2D peak and the G peak indicate the number of graphene layers.
2D>G : Single-layer
2D=G : Double layer
2D<G : more than triple layer
- 3 measurements for every sample are taken and presented on the same graph.
Specification of a PET film
Material – PET (Polyethyleneterephtalate) –
Thickness : 0.188 mm (0.0074 inch)
Haze : 0.9%
Light transmission : 92%
Tensile Strength MD:179MPa TD:197MPa
Tensile elongation MD:132% TD:99%
Coefficient of Static Friction : 0.46
Coefficient of Kinetic Friction : 0.40
Coefficient of Thermal expansion MD:0.9% TD:0.7%