论文标题
挠性电源如何驱动摩擦电性
How Flexoelectricity Drives Triboelectricity
论文作者
论文摘要
自古以来就已经知道了摩擦着性，但是这种现象的基本物理学缺乏共识。我们提出了一个用于摩擦电性的挠性电气模型，其中接触变形诱导的带弯曲是电荷传递的驱动力。该框架与第一原理和有限元计算相结合，以探讨不同接触几何和材料组合的电荷传输含义。我们证明，我们的基于AB的公式与现有的经验模型和实验观察兼容，包括相似材料和与Triboelectricity相关的大小/压力依赖性之间的电荷转移。
Triboelectricity has been known since antiquity, but the fundamental physics underlying this phenomenon lacks consensus. We present a flexoelectric model for triboelectricity where contact deformation induced band bending is the driving force for charge transfer. This framework is combined with first principles and finite element calculations to explore charge transfer implications for different contact geometry and materials combinations. We demonstrate that our ab initio based formulation is compatible with existing empirical models and experimental observations including charge transfer between similar materials and size/pressure dependencies associated with triboelectricity.
