We study a ZnO piezoelectric semiconductor nanowire in bending vibration with shear deformation for energy harvesting application. The wire is a cantilever fixed at one end and is driven by a time-harmonic transverse shear force at the other end. A theoretical analysis is performed using one-dimensional equations based on the phenomenological theory of piezoelectric semiconductors consisting of the momentum equation, the charge equation of electrostatics, and the conservation of charge for holes and electrons. An analytical solution is obtained. The distributions of the electric potential and carrier concentration near resonances are calculated. The fields at the first resonance are qualitatively similar to the static fields. At the second and higher resonances the fields reverse their directions when crossing the nodal points of the vibration modes. The results obtained are fundamental to the development and optimization of energy harvesters and other devices based on the bending vibration of ZnO nanowires.

我们研究了具有剪切变形的弯曲振动中的ZnO压电半导体纳米线，用于能量收集应用。线材的一端固定为悬臂，另一端则由时谐横向剪切力驱动。使用基于压电半导体现象学理论的一维方程式进行理论分析，该理论由动量方程式，静电电荷方程式以及空穴和电子的电荷守恒组成。获得分析溶液。计算共振附近的电位和载流子浓度的分布。第一次共振时的场在质量上与静态场相似。在第二和更高的共振频率下，当穿过振动模式的节点时，磁场会反转方向。获得的结果对于基于ZnO纳米线弯曲振动的能量收集器和其他设备的开发和优化至关重要。