N. Ice Bili, A. Meliyanti, T. Hariyanti, Ariswan, W. Sunu Brams Dwandaru
Graphite acts as an electrical conductor due to the delocalization of electrons between the surfaces. Here, graphene oxide (GO) is produced from graphite via the Hummer’s method. Furthermore, we have produced simple parallel plate capacitors containing the synthesized GO as the dielectric material with variation of the GO mass, i.e.: 0.0 g; 0.2 g; and 0.8 g. Moreover, we determine the capacitance values obtained from the capacitors using a multitester device. Characterizations of the GO material are conducted using X-ray diffraction (XRD), ultraviolet-visible (UV-Vis) spectrophotometer, and Fourier transform infrared (FTIR) spectroscopy. The result of the UV-Vis test shows a shouldering peak at a wavelength of 300 nm indicating the existence of oxygen functional groups of the GO sample. The XRD test shows the existence of GO material with 2θ at 12° and an indication of a transition from GO to rGO in an amorphous phase. Finally, the FTIR test produces transmittance bands with functional groups of C=C, CO2, CO, and O-H. The results show that the capacitance values of the capacitors using GO as the dielectric material are higher than without using the GO sample. The highest capacitance value is obtained for the capacitor with 0.2 g of GO, i.e.: 165.02 µF. © (2024), (Sociedad Mexicana de Fisica). All Rights Reserved.
Magister of Physics Education, Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta, Jl. Colombo No. 1, Karangmalang, Sleman, Yogyakarta, 55281, Indonesia; Physics Education Department, Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta, Jl. Colombo No. 1, Karangmalang, Sleman, Yogyakarta, 55281, Indonesia
