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Effect of Ag nanoparticle size on triboelectric nanogenerator for mechanical energy harvesting

机译:Ag纳米粒径对摩擦纳米发电机机械能收集的影响

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摘要

Triboelectric nanogenerators (TENG) are generally utilized on the grounds that they can catch low-recurrence mechanical energy from various types of movement and convert it into electricity. It has been proved that the adulteration of conductive particles in the triboelectric layer can improve its output performance, but metal nanomaterials have different properties at different scales. In this paper, the triboelectric layer of TENG is a composite film made of silver nanoparticles (AgNPs) with different particle sizes (20 nm, 50 nm, 200 nm and 500 nm) that were dispersed and mixed with two-component liquid silica gel step by step. The open circuit voltage (Voc) and short circuit current (Isc) of the 20 nm component of the AgNPs-dispersed/two-component liquid silica gel TENG(At-TENG) are 102.8 V and 4.42 mu A, which are higher than the result execution of the other components. Smaller size nanoparticles have more number of nanoparticles when the mass fraction is the same. AgNPs form micro-capacitance structures in the insulating polymer layer and enhance the dielectric properties of the composite films through an interfacial polarization mechanism. At-TENG can light up 53 commercial LEDs and power calculators or wristband electronic watches, proving its utility as a self-powered power source. An extensive experiment proves the advantage of small size using comparison and theoretical analysis and provides suggestions for the selection of TENG dopants.
机译:摩擦纳米发电机(TENG)通常被使用,因为它们可以从各种类型的运动中捕获低复发的机械能并将其转化为电能。已经证明,在摩擦电层中掺假导电颗粒可以提高其输出性能,但金属纳米材料在不同尺度上具有不同的性能。本文将TENG的摩擦电层由不同粒径(20 nm、50 nm、200 nm和500 nm)的银纳米颗粒(AgNPs)逐步与双组分液态硅胶分散混合而成的复合膜。AgNPs分散/双组分液态硅胶TENG(At-TENG)的20 nm组分的开路电压(Voc)和短路电流(Isc)分别为102.8 V和4.42 μA,均高于其他组分的结果执行。当质量分数相同时,较小尺寸的纳米颗粒具有更多数量的纳米颗粒。AgNPs在绝缘聚合物层中形成微电容结构,通过界面极化机制增强复合膜的介电性能。At-TENG可以点亮53个商用LED和功率计算器或腕带电子手表,证明了其作为自供电电源的实用性。通过对比和理论分析,大量实验证明了TENG掺杂剂体积小的优势,并为TENG掺杂剂的选择提供了建议。

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