Three-dimensional polypyrrole induced high-performance flexible piezoelectric nanogenerators for mechanical energy harvesting

2022 ◽  
pp. 109260
Author(s):  
Songhan Shi ◽  
Zhongbin Pan ◽  
Yu Cheng ◽  
Yizan Zhai ◽  
Yiling Zhang ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
High Performance ◽  
Mechanical Energy ◽  
Three Dimensional ◽  
Piezoelectric Nanogenerators

Porous, Multi-layered Piezoelectric Composites Based on Highly Oriented Pzt/pvdf Electrospinning Fibers for High-performance Piezoelectric Nanogenerators

2021 ◽  
Author(s):  
Xiangxin Du ◽  
Zheng Zhou ◽  
Zhao Zhang ◽  
Liqin Yao ◽  
Qilong Zhang ◽  
...  
Keyword(s):  
Porous Structure ◽  
High Performance ◽  
Mechanical Energy ◽  
High Sensitivity ◽  
Fiber Composites ◽  
Piezoelectric Composites ◽  
Β Phase ◽  
Energy Harvesting Devices ◽  
Piezoelectric Nanogenerators ◽  
Piezoelectric Fiber

Abstract Piezoelectric nanogenerators (PENGs) that can harvest mechanical energy from ambient environment have broad prospects for multi-functional applications. Here, multi-layered piezoelectric composites with a porous structure based on highly oriented PZT/PVDF electrospinning fibers are prepared via a laminating method to construct high-performance PENGs. PZT particles as piezoelectric reinforcing phases are embedded in PVDF fibers and facilitate the formation of polar β phase in PVDF. The multi-layered, porous structure effectively promotes the overall polarization and surface bound charge density, resulting in highly efficient electromechanical conversion. The PENG based on 10 wt.% PZT/PVDF composite fibers with a 220 µm film thickness output an optimal voltage of 62.0 V and a power of 136.9 μW, which is 3.4 and 6.5 times the voltage and power of 10wt.% PZT/PVDF casting film-based PENG, respectively. Importantly, the PENG shows a high sensitivity of 12.4 VN-1, presenting a significant advantage in comparison to PENGs with other porous structures. In addition, the composites show excellent flexibility with a Young’s modulus of 227.2 MPa and an elongation of 262.3%. This work shows great potential application of piezoelectric fiber composites in flexible energy harvesting devices.

scholarly journals Ultrastable and High-Performance Silk Energy Harvesting Textiles

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Chao Ye ◽  
Shaojun Dong ◽  
Jing Ren ◽  
Shengjie Ling
Keyword(s):  
Energy Harvesting ◽  
High Performance ◽  
Mechanical Energy ◽  
Wearable Electronics ◽  
High Power Output ◽  
Severe Change ◽  
Interactive Interfaces ◽  
Application Requirements ◽  
Intelligent Clothing

AbstractEnergy harvesting textiles (EHTs) have attracted much attention in wearable electronics and the internet-of-things for real-time mechanical energy harvesting associated with human activities. However, to satisfy practical application requirements, especially the demand for long-term use, it is challenging to construct an energy harvesting textile with elegant trade-off between mechanical and triboelectric performance. In this study, an energy harvesting textile was constructed using natural silk inspired hierarchical structural designs combined with rational material screening; this design strategy provides multiscale opportunities to optimize the mechanical and triboelectric performance of the final textile system. The resulting EHTs with traditional advantages of textiles showed good mechanical properties (tensile strength of 237 ± 13 MPa and toughness of 4.5 ± 0.4 MJ m−3 for single yarns), high power output (3.5 mW m−2), and excellent structural stability (99% conductivity maintained after 2.3 million multi-type cyclic deformations without severe change in appearance), exhibiting broad application prospects in integrated intelligent clothing, energy harvesting, and human-interactive interfaces.

Tetragonal BaTiO3 nanowires: a template-free salt-flux-assisted synthesis and its piezoelectric response based on mechanical energy harvesting

2019 ◽  
Vol 7 (27) ◽  
pp. 8277-8286 ◽  
Author(s):  
Thitirat Charoonsuk ◽  
Saichon Sriphan ◽  
Chanisa Nawanil ◽  
Narong Chanlek ◽  
Wanwilai Vittayakorn ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
High Performance ◽  
Mechanical Energy ◽  
Salt Flux ◽  
Lead Free ◽  
Piezoelectric Response ◽  
Template Free

This research successfully demonstrated a facile, effective and scalable preparation of BaTiO3 nanowires (BT-NWs) via the template-free salt flux assisted method. High-performance lead-free flexible piezoelectric nanogenerator using BT-NWs was proposed in this work.

Flexible piezoelectric nanogenerators based on silicon nanowire/α-quartz composites for mechanical energy harvesting

2015 ◽  
Vol 160 ◽  
pp. 222-226 ◽  
Author(s):  
Liangbin Liu ◽  
Kailing Lu ◽  
Tao Wang ◽  
Fan Liao ◽  
Mingfa Peng ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Mechanical Energy ◽  
Silicon Nanowire ◽  
Piezoelectric Nanogenerators

LiTaO3-Based Flexible Piezoelectric Nanogenerators for Mechanical Energy Harvesting

2021 ◽  
Vol 13 (39) ◽  
pp. 46526-46536
Author(s):  
Punnarao Manchi ◽  
Sontyana Adonijah Graham ◽  
Harishkumarreddy Patnam ◽  
Nagamalleswara Rao Alluri ◽  
Sang-Jae Kim ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Mechanical Energy ◽  
Piezoelectric Nanogenerators

scholarly journals Unprecedented dipole alignment in α-phase nylon-11 nanowires for high-performance energy-harvesting applications

2020 ◽  
Vol 6 (24) ◽  
pp. eaay5065 ◽  
Author(s):  
Yeon Sik Choi ◽  
Sung Kyun Kim ◽  
Michael Smith ◽  
Findlay Williams ◽  
Mary E. Vickers ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Surface Potential ◽  
High Performance ◽  
Mechanical Energy ◽  
Ferroelectric Polymers ◽  
Experimental Realization ◽  
Energy Harvesters ◽  
Α Phase ◽  
Nylon 11 ◽  
Dipole Alignment

Dipole alignment in ferroelectric polymers is routinely exploited for applications in charge-based applications. Here, we present the first experimental realization of ideally ordered dipole alignment in α-phase nylon-11 nanowires. This is an unprecedented discovery as dipole alignment is typically only ever achieved in ferroelectric polymers using an applied electric field, whereas here, we achieve dipole alignment in as-fabricated nanowires of ‘non-ferroelectric’ α-phase nylon-11, an overlooked polymorph of nylon proposed 30 years ago but never practically realized. We show that the strong hydrogen bonding in α-phase nylon-11 serves to enhance the molecular ordering, resulting in exceptional intensity and thermal stability of surface potential. This discovery has profound implications for the field of triboelectric energy harvesting, as the presence of an enhanced surface potential leads to higher mechanical energy harvesting performance. Our approach therefore paves the way towards achieving robust, high-performance mechanical energy harvesters based on this unusual ordered phase of nylon-11.

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