聚偏二氟乙烯摩擦纳米发电机在健康监测和能量收集中的应用综述,ACS Applied Electronic Materials

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聚偏二氟乙烯摩擦纳米发电机在健康监测和能量收集中的应用综述
ACS Applied Electronic Materials ( IF 4.3 ) Pub Date : 2024-01-03 , DOI: 10.1021/acsaelm.3c01297
Amrutha Bindhu ₁ , Anand Prabu Arun ₁ , Madhvesh Pathak ₁

Affiliation

为了满足未来对可持续和环保技术的需求，许多研究小组正在关注摩擦纳米发电机（TENG），它可以收集可用的机械能并将其转化为电能。研究人员正在努力了解摩擦电材料表面的影响以及在决定 TENG 整体输出性能方面发挥重要作用的特性。根据摩擦系列中的电荷选择摩擦负性和摩擦正性材料以及制造摩擦活性材料的不同工艺及其表面改性对于获得最佳 TENG 性能发挥着重要作用。最重要的摩擦负性材料是聚偏二氟乙烯（PVDF），其电活性极性β晶相决定了更高的TENG性能。然而，PVDF 具有一些固有的局限性，例如较低的电导率和偶极矩以及室温下的非极性 α 晶相。有趣的是，这些是决定能量收集和可穿戴传感器中 TENG 应用输出性能的主要因素。在这篇综述中，我们主要关注溶液浇铸、3D 打印、旋涂和静电纺丝等不同加工方法对基于 PVDF 的 TENG 输出性能的影响。还详细研究了纳米材料对PVDF晶相的影响。此外，还对基于 PVDF 的 TENG 在健康监测、可穿戴传感器和能量收集应用方面的最新进展进行了广泛分析。

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Review on Polyvinylidene Fluoride-Based Triboelectric Nanogenerators for Applications in Health Monitoring and Energy Harvesting

To meet future demands for sustainable and environmentally friendly technology, many research groups are focusing on triboelectric nanogenerators (TENGs), which can scavenge and convert the available mechanical energy into electrical energy. Researchers are working to comprehend the influence of triboelectric material surfaces as well as the properties that play an important role in determining the overall output performance of TENGs. The selection of tribonegative and tribopositive materials based on the charge in triboseries and different processes for manufacturing the triboactive material and its surface modification play important roles in attaining optimal TENG performance. The most significant tribonegative material is polyvinylidene fluoride (PVDF), and its electroactive polar β-crystalline phase is responsible for higher TENG performance. However, PVDF has some intrinsic limitations such as lower electrical conductivity and dipole moment and nonpolar α-crystalline phase at room temperature. Interestingly, these are the main factors that determine the output performance of TENG applications in energy harvesting and wearable sensors. In this review, we have mainly focused on the influence of varying processing methods like solution casting, 3-D printing, spin coating, and electrospinning on the output performance of PVDF-based TENGs. The effect of nanoscale materials on the PVDF crystalline phase is also studied in detail. Additionally, an extensive analysis of recent advancements in health monitoring, wearable sensors, and energy harvesting applications of PVDF-based TENGs is included.

更新日期：2024-01-03

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