TY - JOUR TI - Investigating the Impact of Growth Time and Methane Flow on Graphene Synthesis using Nickel Foil AB - Graphene has been one of the most investigated nanomaterials in recent years due to its one atom thickness nature and itsextraordinary properties such as high conductivity and excellent transmittance in visible range, bendability and high carriermobility. Although there are many techniques to grow graphene, chemical vapor deposition technique is one of the best approachto synthesize homogeneous and commercial scale graphene in thin film form. Many parameters can affect the quality andhomogeneity of the graphene film that is grown with this technique. In this study, two growth parameters which are methane flowrate and growth time were investigated to find out their effect on the quality of the graphene film, which is grown on nickel foil.Graphene film grown with different flow rates of methane (from 20 to 50 sccm) and growth time (50 to 20 mins.) were examined.We found that single layer graphene film could only be grown under 20 sccm methane flow in 20 mins. growth time as evidencedvia Raman spectroscopy measurements. Furthermore, the single layer graphene film was found to be in high homogeneity asconfirmed by Raman mapping. On the other hand, multi-layer graphene film was obtained by increasing both methane flow andgrowth time. AU - Bozkaya, Meryem AU - Ates, Hakan AU - ZAN, RECEP AU - Altuntepe, Ali DO - 10.2339/politeknik.869535 PY - 2021 JO - Politeknik Dergisi VL - 24 IS - 3 SN - 1302-0900 SP - 1181 EP - 1186 DB - TRDizin UR - http://search/yayin/detay/455194 ER -