Triboelectric and piezoelectric nanogenerators based on triboelectric and piezoelectric effects are being explored to harvest electrical energy from the mechanical vibrations. These two different effects can be combined when one of the materials in the triboelectric nanogenerator is a piezoelectric material. In the present work, we have prepared ZnO-PVDF film and fabricated piezo-tribo based hybrid nanogenerator by coupling with PTFE. It is found that when ZnO is incorporated into the PVDF matrix, not only the piezoelectric property but also the triboelectric property of PVDF is enhanced. The ZnO-PVDF based piezo-tribo hybrid generator gives an instantaneous maximum output power of ~ 24.5 µW/cm², which is ~ 2.5 times more as compared to bare PVDF based hybrid nanogenerator. The enhancement has been achieved without any surface treatment or electrical poling, just by introducing ZnO nanorods into PVDF matrix. Therefore, this will give a new approach to enhance both the piezoelectric as well as triboelectric effect and exploiting both the effects simultaneously in one device.

正在探索基于摩擦电和压电效应的摩擦电和压电纳米发电机，以从机械振动中收集电能。当摩擦电纳米发生器中的一种材料是压电材料时，可以将这两种不同的效果结合起来。在目前的工作中，我们已经制备了ZnO-PVDF膜，并通过与PTFE偶联制备了基于压电-摩擦的混合纳米发电机。发现将ZnO掺入PVDF基体中，不仅压电性能提高，而且PVDF的摩擦电性能提高。基于ZnO-PVDF的压电摩擦混合发生器产生的瞬时最大输出功率为〜24.5 µW / cm ²，这是基于裸PVDF的混合纳米发电机的约2.5倍。仅通过将ZnO纳米棒引入PVDF基质即可实现增强，而无需任何表面处理或电极化。因此，这将提供一种新的方法来增强压电效应和摩擦电效应，并在一个设备中同时利用这两种效应。