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Vibrational fingerprints of residual polymer on transferred CVD-graphene

Holroyd, C and Horn, AB and Casiraghi, C and Koehler, SPK (2017) Vibrational fingerprints of residual polymer on transferred CVD-graphene. Carbon, 117. pp. 473-475. ISSN 0008-6223

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Abstract

The use of vibrational sum-frequency spectroscopy (VSFS) to study transferred graphene, produced by chemical vapour deposition, is presented. The VSF spectrum shows a clear CH stretching mode at ∼2924 cm−1, which is attributed to residue of the polymer used for the transfer. This makes VSFS a powerful tool to identify adsorbates and contaminants affecting the properties of graphene.

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