Ultrahigh performance enhancement of triboelectric nanogenerators based on polar lubricating oils

Key Points

• Performance enhancement in triboelectric nanogenerators is observed with polar lubricating oils, substantially increasing energy output.
• The enhancement effect was quantified, revealing a more than 30% increase in energy harvesting capabilities due to optimized lubricating oil composition.
• Assessment using a systematic experimental approach demonstrated the dependence of performance on the triboelectric material properties and oil characteristics.
• These findings highlight the potential for polar lubricating oils to significantly boost energy harvesting technologies in various applications.