Zhang Qianqian, Yadav Neha, Wu Yongling, Yadav Ashish, Hongyu Zheng
Center for advanced laser manufacturing (CALM), Shandong university of technology Zibo 255000 P.R. China
Nanoscale Adv. 2025 Jun 12. doi: 10.1039/d5na00474h.
Piezoelectric nanocomposites have been a rapidly growing field in energy harvesting, with applications in wearable electronics, strain sensors, mechanical actuators, and electromechanical membranes. This research initially reported the use of three-dimensional polymer photonic crystals with varying ratios. PVDF is responsible for piezoelectric performance and is a promising polymeric organic material for converting applied mechanical stress into electric voltage. In addition, TPU is widely used in the plastic industry due to its superior elasticity. Our work investigates the piezoelectric response of different blending ratios of PC + PVDF/TPU. it has been found that higher ratio of PC give higher output voltage under different stress conditions and higher photosensitivity. Then, addition of TPU, owing to its superior mechanical elasticity, can partially compensate for PVDF to enhance the piezoelectric response of the PVDF/TPU nanocomposite mats. This work can help increase strain sensitivity and mechanical elasticity with PCs, making it a unique contribution in this research direction and valuable for future devices.
压电纳米复合材料在能量收集领域一直是一个快速发展的领域，应用于可穿戴电子设备、应变传感器、机械致动器和机电膜。这项研究最初报道了使用不同比例的三维聚合物光子晶体。聚偏氟乙烯（PVDF）负责压电性能，是一种将施加的机械应力转化为电压的有前途的聚合物有机材料。此外，热塑性聚氨酯（TPU）因其优异的弹性而广泛应用于塑料工业。我们的工作研究了PC + PVDF/TPU不同混合比例的压电响应。研究发现，在不同应力条件下，较高比例的PC能产生较高的输出电压和较高的光敏性。然后，由于TPU具有优异的机械弹性，添加TPU可以部分补偿PVDF，以增强PVDF/TPU纳米复合垫的压电响应。这项工作有助于通过光子晶体提高应变灵敏度和机械弹性，使其在这一研究方向上做出独特贡献，并对未来的设备具有重要价值。
