Skin‐Integrated Graphene‐Embedded Lead Zirconate Titanate Rubber for Energy Harvesting and Mechanical Sensing,Advanced Materials Technologies

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Skin‐Integrated Graphene‐Embedded Lead Zirconate Titanate Rubber for Energy Harvesting and Mechanical Sensing
Advanced Materials Technologies ( IF 6.4 ) Pub Date : 2019-10-14 , DOI: 10.1002/admt.201900744
Yiming Liu ₁ , Ling Zhao ₁ , Lingyun Wang _{1,

2} , Huanxi Zheng ₃ , Dengfeng Li ₁ , Raudel Avila ₄ , King W. C. Lai ₁ , Zuankai Wang ₃ , Zhaoqian Xie ₁ , Yunlong Zi ₂ , Xinge Yu ₁

Affiliation

Thin, soft, skin‐like electronics capable of transforming body mechanical motions to electrical signals have broad potential applications in biosensing and energy harvesting. Forming piezoelectric materials into flexible and stretchable formats and integrating with soft substrate would be a considerable strategy for this aspect. Here, a skin‐integrated rubbery electronic device that associates with a simple low‐cost fabrication method for a ternary piezoelectric rubber composite of graphene, lead zirconate tinanate (PZT), and polydimethylsiloxane (PDMS) is introduced. Comparing to the binary composite that blend with PZT and PDMS, the graphene‐embedded ternary composite exhibits a significant enhancement of self‐powered behavior, with a maximum power density of 972.43 µW cm⁻³ under human walking. Combined experimental and theoretical studies of the graphene‐embedded PZT rubber allow the skin‐integrated electronic device to exhibit excellent mechanical tolerance to bending, stretching, and twisting for thousands of cycles. Customized device geometries guided by optimized mechanical design enable a more comprehensive integration of the rubbery electronics with the human body. For instance, annulus‐shape devices can perfectly mount on the joints and ensure great power output and stability under continuous and large deformations. This work demonstrates the potential of large‐area, skin‐integrated, self‐powered electronics for energy harvesting as well as human health related mechanical sensing.

中文翻译：

皮肤-集成石墨烯-嵌入锆酸钛酸铅橡胶，用于能量收集和机械感测

能够将人体机械运动转换为电信号的薄而柔软的类皮肤电子设备在生物传感和能量收集中具有广泛的潜在应用。对于这方面，将压电材料形成为柔性和可拉伸的形式并与软质基底集成将是相当可观的策略。在这里，介绍了一种皮肤集成的橡胶电子设备，该设备与一种简单的低成本制造方法有关，用于石墨烯，锆酸钛酸铅（PZT）和聚二甲基硅氧烷（PDMS）的三元压电橡胶复合材料。与掺有PZT和PDMS的二元复合材料相比，嵌入石墨烯的三元复合材料表现出自供电性能的显着增强，最大功率密度为972.43 µW cm ^-3。在人类步行下。石墨烯嵌入的PZT橡胶的实验和理论研究相结合，使皮肤集成电子设备在数千次循环中均表现出出色的抗弯曲，拉伸和扭曲机械耐受性。通过优化的机械设计定制的设备几何形状可以使橡胶电子产品与人体更全面地集成。例如，环形装置可以完美地安装在关节上，并确保在连续和大变形情况下的大功率输出和稳定性。这项工作展示了大面积，皮肤集成，自供电电子设备在能量收集以及与人类健康相关的机械感测中的潜力。

更新日期：2019-12-09

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