Hidden culprit found for puzzling static electricity

Key Points

• The aim is to determine the role of surface contamination in the charge exchange between identical materials.
• Investigated the impact of trace surface contamination on charge transfer.
• Analyzed different materials under varying contamination conditions.
• Utilized triboelectric effect principles to assess charge exchange.
• Surface contamination significantly alters how materials exchange charge.
• Identical materials exhibit different charging behaviors based on the level of contamination.
• Findings suggest that minimizing surface contamination can enhance control over static electricity.