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Start Over Author "Bai, Zikui" Publisher elsevier bv
26 results on '"Bai, Zikui"'

2. PU/PVDF Blend Nanofiber Film with Enhanced Mechanical and Piezoelectric Performance for Development of Stable Nanogenerators

Author

Bai, Zikui, primary, Yao, Zhiyuan, additional, Wu, Guangmin, additional, Liu, Kaiwu, additional, Ye, Dezhan, additional, Tao, Yongzhen, additional, Xiao, Shili, additional, Chen, Dongzhi, additional, Deng, Zhongmin, additional, Xu, Jie, additional, Zhou, Yinshan, additional, Wei, Shijun, additional, and Yin, Xianze, additional

Published
2023
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5. Enhanced piezoelectric performance of BiCl3/PVDF nanofibers-based nanogenerators

Author

Weilin Xu, Mingchao Dong, Yingshan Zhou, Bai Zikui, Xianze Yin, Kankan Jiang, Tao Yongzhen, Yunzheng Cao, Jie Xu, Shaojin Gu, and Chen Chong

Subjects
Materials science, Doping, General Engineering, Nanogenerator, 02 engineering and technology, Conductivity, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Piezoelectricity, 0104 chemical sciences, law.invention, Capacitor, law, Nanofiber, Ceramics and Composites, Composite material, 0210 nano-technology, Mechanical energy, Voltage
Abstract

BiCl3, because of its promoting the formation of β crystal of PVDF and enhancing the conductivity, has drawn increasing attention in the fields of PVDF piezoelectric applications. The high β-phase concentration was achieved from the nanofiber film of PVDF doped with BiCl3, which enhance the piezoelectric power output of the fiber films. Under vertical vibration, the output piezoelectric voltage of BiCl3/PVDF nanofiber film-based piezoelectric nanogenerator with an optimized ratio of 2 wt% is up to 1.1 V, which is 4.76 times higher than that of pure PVDF fiber piezoelectric nanogenerator. The maximum peak current and power surface density are 2 μA and 0.2 μW cm−2, respectively. The alternating output signals generated from the BiCl3/PVDF fiber film can be used to charge a capacitor through a bridge rectifier and then light up a red LED. The test method had great influence on the piezoelectric outputs of the piezoelectric device. When a piezoelectric device is impacted by a falling ball, it can produce a voltage output of 38 V. This study shows that the BiCl3/PVDF nanofiber film based piezoelectric nanogenerator is a promising mechanical energy harvesters for portable electronic and wearable devices.

Published
2020

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