Graphite and its derivatives such as graphene have demonstrated many unique properties that are still un- der intense exploration. In particular, these properties are important for microelectronics applications. In our case it was ideal diamagnetism in composite graphene system where the reproducibility on demand suffered. The quality of graphene and influence of humidity were recognized as possible cause of this problem. Thus, we performed systematic studies of the quality of pristine graphene and its degradation vs. various conditions. Raman studies constituted an essential part of research and are reported in detail. Specimens on different sub- strates were explored via application of annealing (at 100◦C − 480◦C, in air and in a vacuum) to vary phys- ical properties of graphene. We complemented Raman mapping by characterizing the morphology of films using AFM scans.
Journal: TechConnect Briefs
Volume: TechConnect Briefs 2021
Published: October 18, 2021
Pages: 50 - 53
Industry sector: Advanced Materials & Manufacturing
Topics: Advanced Materials for Engineering Applications, Materials Characterization & Imaging