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.

scholarly journals Orientation-dependent piezoresponse and high-performance energy harvesting of lead-free (K,Na)NbO3 nanorod arrays

RSC Advances ◽  
2017 ◽  
Vol 7 (28) ◽  
pp. 16908-16915 ◽  
Author(s):  
Yahua He ◽  
Zhao Wang ◽  
Xiaokang Hu ◽  
Yaxuan Cai ◽  
Luying Li ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Spontaneous Polarization ◽  
High Performance ◽  
Lead Free ◽  
Piezoelectric Response ◽  
Nanorod Arrays ◽  
High Quality ◽  
Energy Harvesters ◽  
Piezoelectric Energy ◽  
High Output

High-quality (K,Na)NbO3 nanorod arrays with [110]-oriented spontaneous polarization and piezoelectric response were utilized for building high-output piezoelectric energy harvesters.

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.

A flexible, planar energy harvesting device for scavenging road side waste mechanical energy via the synergistic piezoelectric response of K0.5Na0.5NbO3-BaTiO3/PVDF composite films

Nanoscale ◽  
2017 ◽  
Vol 9 (39) ◽  
pp. 15122-15130 ◽  
Author(s):  
Venkateswaran Vivekananthan ◽  
Nagamalleswara Rao Alluri ◽  
Yuvasree Purusothaman ◽  
Arunkumar Chandrasekhar ◽  
Sang-Jae Kim
Keyword(s):  
Energy Harvesting ◽  
Mechanical Energy ◽  
Composite Films ◽  
Piezoelectric Response ◽  
Probe Sonication

A probe-sonication derived planar, sustainable composite-piezoelectric nanogenerator was developed to harness the waste mechanical energy.

scholarly journals Practical high-performance lead-free piezoelectrics: structural flexibility beyond utilizing multiphase coexistence

2019 ◽  
Vol 7 (2) ◽  
pp. 355-365 ◽  
Author(s):  
Qing Liu ◽  
Yichi Zhang ◽  
Jing Gao ◽  
Zhen Zhou ◽  
Dong Yang ◽  
...  
Keyword(s):  
High Performance ◽  
Domain Architecture ◽  
Polymorphic Transition ◽  
Lead Free ◽  
Piezoelectric Response ◽  
Small Range ◽  
Structural Flexibility ◽  
Material System ◽  
Lattice Softening ◽  
Insight Into

Abstract Due to growing concern for the environment and human health, searching for high-performance lead-free piezoceramics has been a hot topic of scientific and industrial research. Despite the significant progress achieved toward enhancing piezoelectricity, further efforts should be devoted to the synergistic improvement of piezoelectricity and its thermal stability. This study provides new insight into these topics. A new KNN-based lead-free ceramic material is presented, which features a large piezoelectric coefficient (d33) exceeding 500 pC/N and a high Curie temperature (Tc) of  ∼200°C. The superior piezoelectric response strongly relies on the increased composition-induced structural flexibility due to lattice softening and decreased unit cell distortion. In contrast to piezoelectricity anomalies induced via polymorphic transition, this piezoelectricity enhancement is effective within a broad temperature range rather than a specific small range. In particular, a hierarchical domain architecture composed of nano-sized domains along the submicron domains was detected in this material system, which further contributes to the high piezoelectricity.

A highly dense structure boosts energy harvesting and cycling reliabilities of a high-performance lead-free energy harvester

2017 ◽  
Vol 5 (31) ◽  
pp. 7862-7870 ◽  
Author(s):  
Mupeng Zheng ◽  
Yudong Hou ◽  
Xiaodong Yan ◽  
Lina Zhang ◽  
Mankang Zhu
Keyword(s):  
Free Energy ◽  
Energy Harvesting ◽  
High Performance ◽  
Energy Harvester ◽  
Lead Free ◽  
Dense Structure

The highly dense Mn-KNN ceramics present an excellent energy harvesting performance.

High-performance piezoelectric-energy-harvester and self-powered mechanosensing using lead-free potassium–sodium niobate flexible piezoelectric composites

2018 ◽  
Vol 6 (34) ◽  
pp. 16439-16449 ◽  
Author(s):  
Mengjun Wu ◽  
Ting Zheng ◽  
Haiwu Zheng ◽  
Jifang Li ◽  
Weichao Wang ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
High Performance ◽  
Energy Harvester ◽  
Lead Free ◽  
Sodium Niobate ◽  
Potassium Sodium Niobate ◽  
Piezoelectric Composites ◽  
Potassium Sodium ◽  
Piezoelectric Energy ◽  
Self Powered

A flexible piezoelectric nanogenerator (PENG) was fabricated based on a new inorganic piezoelectric KNN–BNZ–AS–Fe, which exhibited the great potential in energy harvesting and self-powered mechanosensing.

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