The image contains a diagram detailing the process of contact electrification in oxides, illustrated with arrows and labeled sections. Various stages of the process are depicted, including initial contact, electron transfer, and charge separation, along with associated terms like symmetry breaking and initial contaminants. There are graphs showing relationships between contact force and distance, as well as charge density and separation force on the right side. Multiple data points and annotations accompany these graphs, illustrating the experimental findings related to carbon contamination in oxides.
