Siloxene/PVDF Composite Nanofibrous Membrane for High-Performance Triboelectric Nanogenerator and Self-Powered Static and Dynamic Pressure Sensing Applications

被引：122

作者：

Bhatta, Trilochan ^{[1
]}

Sharma, Sudeep ^{[1
]}

Shrestha, Kumar ^{[1
]}

Shin, Youngdo ^{[1
]}

Seonu, Sookyeong ^{[1
]}

Lee, Sanghyun ^{[1
]}

Kim, Dongkyun ^{[1
]}

Sharifuzzaman, Md ^{[1
]}

Rana, S. M. Sohel ^{[1
]}

Park, Jae Yeong ^{[1
]}

机构：

[1] Kwangwoon Univ, Dept Elect Engn, Seoul 01897, South Korea

来源：

ADVANCED FUNCTIONAL MATERIALS | 2022年 / 32卷 / 25期

基金：

新加坡国家研究基金会;

关键词：

composite nanofibrous membranes; dynamic sensing; self-powered pressure sensors; static sensing; triboelectric nanogenerators; user authentication; ENERGY HARVESTER; SENSOR; PVDF;

D O I：

10.1002/adfm.202202145

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Polymer nanofibers are widely adopted in energy harvesting and pressure sensing applications owing to the large contact area and inherent compressibility. Herein, a high-performance triboelectric nanogenerator (TENG) based on 2D siloxene-polyvinylidene fluoride (S-PVDF) composite nanofibrous membrane is newly evaluated. Through proper ratio optimization and facile electrospinning, the fabricated membrane shows significant improvement in dielectric property, electronegativity, and compressibility. The TENG comprising S-PVDF membrane and Nylon 6/6 can deliver an excellent power density of 13.25 W m(-2) (f approximate to 5 Hz) and easily operates low-power electronics and Internet of things (IoTs). In addition, the excellent compressibility of membrane extends its applicability to self-powered simultaneous detection of dynamic and static pressure, which is investigated by developing a hybrid pressure sensor (HPS) through effective integration of TENG and a capacitive pressure sensor. The HPS shows an excellent dynamic (12.062 V kPa(-1) at (<3 kPa) and 2.58 V kPa(-1) at (3-25 kPa)) and static (25.07 mV kPa(-1) at (<3 kPa) and 5.96 mV kPa(-1) at (3-25 kPa)) pressure sensitivities, respectively. Furthermore, a 2 x 2 HPS array tested and analyzed for multiple users using artificial intelligence significantly improves the accuracy (98%). Remarkable energy harvesting performance and greater accuracy of the HPS manifests better preferences for future self-powered IoT and smart tactile-based user authentication systems.

引用

页数：15

共 61 条

[21] Probing the energy conversion process in piezoelectric-driven electrochemical self-charging supercapacitor power cell using piezoelectrochemical spectroscopy [J].