Quantifying the triboelectric series

作者：Haiyang Zou, Ying Zhang, Litong Guo, Peihong Wang, Xu He, Guozhang Dai, Haiwu Zheng, Chao-Yu Chen, Aurelia Chi Wang, Cheng Xu, Zhong Lin Wang · 发表于：Nature Communications · 年份：2019 · DOI：10.1038/s41467-019-09461-x · 被引用次数：1930 · 研究领域：Advanced Sensor and Energy Harvesting Materials、Innovative Energy Harvesting Technologies、Conducting polymers and applications

Triboelectrification is a well-known phenomenon that commonly occurs in nature and in our lives at any time and any place. Although each and every material exhibits triboelectrification, its quantification has not been standardized. A triboelectric series has been qualitatively ranked with regards to triboelectric polarization. Here, we introduce a universal standard method to quantify the triboelectric series for a wide range of polymers, establishing quantitative triboelectrification as a fundamental materials property. By measuring the tested materials with a liquid metal in an environment under well-defined conditions, the proposed method standardizes the experimental set up for uniformly quantifying the surface triboelectrification of general materials. The normalized triboelectric charge density is derived to reveal the intrinsic character of polymers for gaining or losing electrons. This quantitative triboelectric series may serve as a textbook standard for implementing the application of triboelectrification for energy harvesting and self-powered sensing.