Surface patterning strategies for performance enhancement in triboelectric nanogenerators
Surface patterning strategies for performance enhancement in triboelectric nanogenerators
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DOI：
10.1016/j.rineng.2022.100756
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发表时间：
2022-11
影响因子：
5
通讯作者：
Irthasa Aazem;Walden;Aswathy Babu;S. Pillai
中科院分区：
文献类型：
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作者：
Irthasa Aazem;Walden;Aswathy Babu;S. Pillai
摩擦起电被报道为一种表面现象，并通过 Wang 过渡概念中解释的电子云重叠模型进行解释。因此，需要通过设计表面以增加表面接触面积和表面粗糙度的策略来探索摩擦纳米发电机（TENG）的性能增强。表面图案化策略在提升 TENG 的性能和拓宽应用领域方面发挥着重要作用。当前的评论文章致力于介绍各种表面图案化方法，这些方法属于表面的物理修饰。讨论了光刻、等离子体辅助方法、激光照射技术、电化学阳极氧化和其他几何图案等技术。值得注意的是，激光诱导石墨烯提供的表面改性对于制造高性能 TENG 非常有效。据报道，用于 TENG 应用的激光聚酰亚胺和激光诱导石墨烯复合材料的主要优点之一是，该复合材料可以充当电介质与导体界面和无金属电介质-电介质界面的电极。此外，嵌段共聚物光刻已被认为是制造具有高接触表面积的垂直排列纳米图案表面的有效方法。除此之外，非热等离子体处理中的加压等离子体射流也被证明非常适合不同类型表面的有效和选择性蚀刻。通过电化学阳极氧化进行表面纹理化已应用于金属基材上，以开发高性能 TENG 电极。还详细讨论了各种表面图案化方法当前面临的挑战以及对未来发展的可能建议。
Triboelectrification is reported as a surface phenomenon and is explained by the electron cloud overlap model explained in the Wang transition concept. Therefore, the performance enhancement of Triboelectric Nanogenerators (TENGs) need to be explored through strategies to engineer the surfaces for increased surface contact area and surface roughness. Surface patterning strategies holds a significant role in upscaling the performance and widening the fields of application of TENGs. The current review article is dedicated to presenting various surface patterning methods, which comes under the physical modification of surfaces. Techniques such as lithography, plasma assisted methods, laser irradiation techniques, electrochemical anodization and other geometrical patterning are discussed. It is noted that the surface modification offered by laser induced graphene is effective for fabricating high performance TENGs. One of the major advantages reported with lasing polyimide and laser induced graphene composite for TENG application is that the composite could act as an electrode for both dielectric to conductor interface and metal free dielectric-dielectric interfaces. Additionally, block copolymer lithography has been identified to be an effective method for fabricating vertically aligned nanopatterned surfaces with high contact surface area. Apart from that, the pressurised plasma jets in non-thermal plasma treatment are also proved to be highly suitable for effective and selective etching of different types of surfaces. Surface texturing by electrochemical anodization has been employed on metallic substrates for developing high performance TENG electrodes. Current challenges faced by various surface patterning approaches and possible suggestions for future developments are also discussed in detail.