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Nanomanufacturing. Key control characteristics - Graphene-related products. Number of layers of graphene: optical contrast

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1 Scope

This part of IEC 62607 establishes a standardized method to determine the key control characteristic (KCC)

  • number of layer distribution

for CVD graphene film by

  • optical contrast measurement

The number of layers and number of layer distribution of CVD graphene film is derived by G-channel contrast values.

This method is applicable for clean CVD graphene film without twisted multilayer structures on a SiO2/Si substrate.