Investigation of graphene on quartz substrate

Graphene exhibit remarkable optical and electric properties that makes it versatile for different applications, with special attention in the industry. Graphene single layer has been obtained with different methods and on arbitrary substrates. In device application, the essential step is the transfer of graphene on a specific substrate, without a metal catalyst. In this research, single layer graphene was grown on a copper catalyst using chemical vapour deposition (CVD) method and transferred to a dielectric substrate (quartz), by the chemical etching method. The substrate material influences graphene properties. Quartz is a dielectric material with excellent optical transmission. PMMA is used as a support film coated on graphene layer before dissolving the metal catalyst. The transfer method proposed in this article offers little contamination, without degradation of properties graphene. The quality and structural properties of the graphene transferred on quartz substrate was evaluated by Raman spectroscopy and for morphological evaluation we used scanning electron microscopy. We used UV-VIS spectroscopy for optical transmittance characterization of graphene layer on quartz substrate.