摩擦电效应
纳米发生器
聚偏氟乙烯
材料科学
极化(电化学)
可穿戴计算机
光电子学
复合材料
计算机科学
压电
化学
聚合物
物理化学
嵌入式系统
作者
Jiayi Yang,Meiqi Wang,Yan Meng,Zihao Niu,Yijun Hao,Haopeng Liu,Wei Su,Hongke Zhang,Yong Qin,Chuguo Zhang,Xiuhan Li
出处
期刊:ACS applied electronic materials
[American Chemical Society]
日期:2024-02-13
标识
DOI:10.1021/acsaelm.3c01678
摘要
Flexible and wearable sensors have a crucial impact on the development of intelligent information technology. However, current commercial sensors cannot meet the relevant performance requirements. Herein, based on the electrospinning process, extra polarization, and triboelectric nanogenerator technologies, we propose a high-performance flexible wearable sensor (HFWS) with a self-powered and breathable function, which is constructed by polarized polyvinylidene fluoride-barium titanate (PVDF-BTO) electrospun film and a Ni fabric electrode. After optimization of the β-phase content in PVDF by electrospinning and BTO nanoparticles, an extra high-voltage polarization operation is continually used to improve the β-phase of PVDF and further enhance the triboelectric performance. Benefiting from the excellent triboelectric performance, the HFWS exhibits several times higher signal-to-noise ratio (37.01 dB), sensitivity (2.62 ± 0.11 V/kPa), and power density (4.62 W/m2) compared to previous similar studies. In addition, for the stable molecular phase structure in PVDF-BTO film, the HFWS has various good durability and stability in machinery, washing, environment, and other aspects. Our finding has potential value in the field of wearable devices, smart healthcare, and intelligent life.
科研通智能强力驱动
Strongly Powered by AbleSci AI