Shear flexoelectric response along 3121 direction in polyvinylidene fluoride
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Shear flexoelectric response along 3121 direction in polyvinylidene fluoride
- 发表刊物：
- Applied Physics Letters
- 摘要：
- Flexoelectricity describes the strain gradient-induced electric polarization. Due to the restrictions
of experiment technologies, some of the components of flexoelectric coefficient have not been
experimentally obtained. In this letter, an experimental method for the measurement of the shear
flexoelectric response along 3121 direction of polyvinylidene fluoride (PVDF) is presented. An
experiment is conducted on various unpolarized specimens, where shear strain gradient is generated
along the radial direction by applying torque to 3 specially designed specimens. The generated
shear strain gradient is calculated via finite element analysis and the corresponding induced electrical
response is measured. Dynamic torque is exerted on the specimens with a static bias value and
at different frequencies. The shear flexoelectric coefficient l3121 is found to have an average value
of 1.037108 C/m. With this method, the shear flexoelectric response along 3121 direction of
PVDF is experimentally obtained. The experimental results show good agreement with the current
research results and indicate the potential value of this material property for electromechanical device
fabrication
- 合写作者：
- Zhang Shuwen, Liang Xu, Xu Minglong, Feng Bo, Shen Shengping
- 卷号：
- 107
- 页面范围：
- 142902
- 是否译文：
- 否
- 发表时间：
- 2015-07-02