Kangpyo Lee , Suhyun Park , Kyunghwan Jung , In Yong Moon , Jeong Ho Ryu , Kang Min Kim
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引用次数: 0
摘要
以接触分离模式工作的三电纳米发电机（TENGs）因其结构简单、耐用性好和能量转换效率高而被广泛用于能量收集。本研究调查了使用聚二甲基硅氧烷（PDMS）结合钛酸钡（BTO）和多壁碳纳米管（MWCNTs）增强 TENG 性能的情况。为了提高 TENG 的性能，对由含有 BTO 和 MWCNTs 的 PDMS 组成的负三电层以及作为正三电层和电极的铝箔进行了优化。含有 0.01 wt% MWCNTs 和 10 wt% BTO 的 PDMS 的最佳成分产生的输出电压和电流分别为 394.75 V 和 28.24 µA。通过应用射频等离子处理，增加了表面粗糙度和氟的掺入量，从而实现了进一步的增强。因此，输出电压和电流分别提高到 421.06 V 和 32.33 µA，在 10 MΩ 时的峰值功率密度为 4.76 W/m2。经过优化的 TENG 在 2000 次循环中保持了稳定的性能，并成功点亮了商用 LED，从而证明了其在实际能量收集应用中的潜力。
Enhanced performance of polydimethylsiloxane-based triboelectric nanogenerator using BaTiO3/MWCNTs
Triboelectric nanogenerators (TENGs) that operate in the contact-separation mode are widely utilized for energy harvesting owing to their simple structure, excellent durability, and high energy-conversion efficiency. This study investigated the enhanced performance of TENGs using polydimethylsiloxane (PDMS) incorporating barium titanate (BTO) and multiwalled carbon nanotubes (MWCNTs). The negative triboelectric layer, comprising PDMS with BTO and MWCNTs, and aluminum foil as both the positive triboelectric layer and electrode, were optimized to improve the TENG performance. The optimal composition of PDMS incorporating 0.01 wt% MWCNTs and 10 wt% BTO yielded output voltage and current of 394.75 V and 28.24 µA, respectively. Further enhancement was realized via the application of radio frequency plasma treatment, which increased the surface roughness and fluorine incorporation. Consequently, the output voltage and current improved to 421.06 V and 32.33 µA, respectively, with a peak power density of 4.76 W/m2 at 10 MΩ. The optimized TENG maintained consistent performance over 2000 cycles and successfully illuminated commercial LEDs, thereby demonstrating its potential for practical energy-harvesting applications.
期刊介绍：
The journal offers a common reference and publication source for workers engaged in research on the experimental and theoretical aspects of crystal growth and its applications, e.g. in devices. Experimental and theoretical contributions are published in the following fields: theory of nucleation and growth, molecular kinetics and transport phenomena, crystallization in viscous media such as polymers and glasses; crystal growth of metals, minerals, semiconductors, superconductors, magnetics, inorganic, organic and biological substances in bulk or as thin films; molecular beam epitaxy, chemical vapor deposition, growth of III-V and II-VI and other semiconductors; characterization of single crystals by physical and chemical methods; apparatus, instrumentation and techniques for crystal growth, and purification methods; multilayer heterostructures and their characterisation with an emphasis on crystal growth and epitaxial aspects of electronic materials. A special feature of the journal is the periodic inclusion of proceedings of symposia and conferences on relevant aspects of crystal growth.
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