The recent advances in flexible piezoelectric technologies have sparked a great interest in developing multifunctional next‐generation transducers, which are in high demand for various challenging applications. Here, novel quasi 1–3 piezoelectric films with record‐high piezoelectric voltage coefficients (g₃₃), reaching up to 0.709 Vm N⁻¹, ≈20% greater than the recently reported highest g₃₃ value in the literature, are reported. These composites are constructed via dielectrophoretic alignment of lead zirconate titanate (PZT) particles enhanced by graphene nanoplatelets, leading to densely structured cone‐shaped nanocolumn forests in the thickness direction. To demonstrate its potential applications, both structured and randomly dispersed samples are characterized and used in various applications ranging from energy harvesting to structural and personal health monitoring. Furthermore, when placed on the sensor surface, the oriented piezoelectric films are shown to detect even the slight movements of a small‐sized insect, demonstrating the ultrasensitivity of the system. Finally, to show the scalability of the dielectrophoretic process, a large area sample (12 ft long and 6‐in.‐wide) is also produced continuously via a novel multifunctional custom designed roll‐to‐roll manufacturing line. To the best of the knowledge, this is the largest single piece of piezoelectric film ever reported in the literature.

中文翻译：

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基于垂直排列的纳米柱林的大面积高性能压电薄膜的卷对卷（R2R）生产

柔性压电技术的最新进展引发了人们对开发多功能下一代换能器的强烈兴趣，这些换能器对各种具有挑战性的应用都有很高的需求。在这里，新型准1-3压电薄膜具有创纪录的压电电压系数（g ₃₃），达到0.709 Vm N ^-1，比最近报道的最高g ₃₃高≈20％价值在文献中都有报道。这些复合材料是通过石墨烯纳米片增强的锆酸钛酸铅（PZT）颗粒的介电电泳排列而形成的，从而在厚度方向上形成了致密的圆锥形纳米柱状森林。为了证明其潜在的应用，结构化和随机分散的样品均经过表征，并用于从能量收集到结构和个人健康监测的各种应用中。此外，当放置在传感器表面上时，定向压电薄膜甚至可以检测到小昆虫的微小移动，从而证明了系统的超灵敏性。最后，为了展示介电泳过程的可扩展性，使用了一个大面积的样品（12英尺长和6英寸）。全尺寸）也通过一条新颖的多功能定制卷对卷生产线连续生产。据其所知，这是有史以来报道的最大的一块压电薄膜。