High-performance triboelectric nanogenerator based on biocompatible electrospun polycaprolactone nanofiber and counter convex PDMS for low-frequency mechanical energy harvesting

IF 2.2 4区 化学 Q3 CHEMISTRY, PHYSICAL
Vu Viet Linh Nguyen, Thi Kieu Tien Vu, Dai Phu Huynh, Van-Tien Bui
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Abstract

Triboelectric nanogenerators (TENGs) made from biocompatible materials serve as promising integrated power sources for portable wearable electronics due to many advantages such as lightweight, high flexibility, simple technique, and excellent breathability. In this work, we report the fabrication of electrospun polycaprolactone micro-nanofiber films (s-PCL) and convex-microdome-patterned polydimethylsiloxane (c-PDMS) utilizing electrospinning and micromolding techniques. These materials, s-PCL and c-PDMS, are utilized as positively and negatively charged tribosurfaces, respectively, in the development of a bioTENG device. The developed TENG device can generate a superior power output of 2 mW with an open-circuit voltage (VOC) of 188 V and short-circuit current (ISC) of 18.5 µA, even under a low triggering frequency of 5 Hz. In addition, TENG possesses outstanding durability and output performance stability over a continuous operation of nearly 16,000 cycles. Furthermore, the TENG demonstrates its capacity to harvest mechanical energy and convert it into electricity, capable of directly illuminating more than 100 LEDs. The electrospun s-PCL- and c-PDMS-based TENG can be considered for self-powdered wearable devices attached to fingers, wrists, feet, and other human body parts.

Graphical abstract

Abstract Image

基于生物相容性电纺聚己内酯纳米纤维和反凸面 PDMS 的高性能三电纳米发电机,用于低频机械能采集
由生物相容性材料制成的三电纳米发电机(TENGs)具有重量轻、灵活性高、技术简单和透气性好等诸多优点,有望成为便携式可穿戴电子设备的集成电源。在这项工作中,我们报告了利用电纺丝和微成型技术制造的电纺聚己内酯微纳米纤维薄膜(s-PCL)和凸微图案聚二甲基硅氧烷(c-PDMS)。这些材料(s-PCL 和 c-PDMS)分别用作带正电和负电的摩擦表面,用于开发生物 TENG 设备。即使在 5 Hz 的低触发频率下,所开发的 TENG 器件也能产生 2 mW 的超强功率输出,开路电压 (VOC) 为 188 V,短路电流 (ISC) 为 18.5 µA。此外,TENG 还具有出色的耐用性和输出性能稳定性,可连续工作近 16,000 次。此外,TENG 还展示了其收集机械能并将其转化为电能的能力,能够直接照亮 100 多个 LED。基于电纺 s-PCL 和 c-PDMS 的 TENG 可考虑用于连接到手指、手腕、脚和其他人体部位的自粉末可穿戴设备。 图文摘要
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来源期刊
Colloid and Polymer Science
Colloid and Polymer Science 化学-高分子科学
CiteScore
4.60
自引率
4.20%
发文量
111
审稿时长
2.2 months
期刊介绍: Colloid and Polymer Science - a leading international journal of longstanding tradition - is devoted to colloid and polymer science and its interdisciplinary interactions. As such, it responds to a demand which has lost none of its actuality as revealed in the trends of contemporary materials science.
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