Characterization of Thin Films of Graphene Nanosheets Prepared with Low-Cost Technique

Abstract

Abstract Exploring and adjusting techniques to synthesis Graphene Nano-sheets (GNS) becomes strongly pursued due to the unique physical and mechanical properties in the desired applications. In this work, Multi-layer thin films of (GNS) were deposited on glass slides using a non-premixed flame technique. The aim was to prepare the homogeneous structure of films with fewer defects. Propane gas was used at monitored temperatures (400-500)°C, under atmospheric pressure. Morphological characteristics of (GNS) were analyzed by optical and Scanning Electron Microscopy (SEM). Furthermore, Ultraviolet-Visible (UV-Vis) spectrometer was used and showed high transmittance via the prepared films which close to nano-size thickness, it increased with increasing the temperature corresponding to about 13 and 11 layers at 400°C and 500°C respectively. The x-ray diffraction (XRD) test illustrated the polycrystalline pattern of (GNS) with sharp peaks at 2θ= 14.22° and 2θ=17.03° that corresponds to the interlayer distances of 6.22 Å and 5.2 Å respectively. However, the broad peak at 2θ= 25.9° for (002) direction matches up with an interlayer space of 3.43Å which refers to ordinary graphite layers presence. The concluded results provided an essential advantage of producing Multilayers of (GNS) with high characteristics.