| 초록 |
Graphene have been demonstrated as promising materials in transparent electrode applications based on their inherent properties including high theoretical surface area and high electrical conductivity. Therefore, it is important to readily and easily produce a graphene electrode having stable deposition. However, obtaining graphene is difficult in terms of cost and process, so finding other materials to replace is an important issue. Accordingly, research on rGO solution which is easy to manufacture and has compatibility is proceeding. In particular, patterning processing is a key technology for producing high quality fine scale electrodes equivalent to the original graphene in alternative graphene field. However, current masking methods and lithography methods are relatively complex and require additional equipment. Electrostatic spray deposition (ESD) presents a new step in the simple and inexpensive fabrication of graphene films on a variety of substrates. In this study, a reduced oxidized graphene (rGO) solution was used in the EDS process for patterning. rGO was obtained by hydrothermal synthesis of oxidized graphene and sprayed to form a continuous layer on various substrates under high electric field. A further reduction in the additional oxygen functionality for rGO was achieved by thermal annealing in a reducing atmosphere. The quality of rGO and rGO patterns was confirmed using structure and microstructure analysis including X-ray diffraction (XRD), field emission scanning electron microscope (Fe-SEM) and Raman spectroscopy, OM) and stylus profilometer method. |
