Self-polarized piezoelectric thin films: preparation, formation mechanism and application

2015 ◽  
Vol 3 (34) ◽  
pp. 8926-8931 ◽  
Author(s):  
Baozhang Li ◽  
Chengyi Xu ◽  
Feifei Zhang ◽  
Jianming Zheng ◽  
Chunye Xu
Keyword(s):  
Thin Films ◽  
Energy Harvesting ◽  
Formation Mechanism ◽  
Pressure Sensor ◽  
Salt Solution ◽  
Pvdf Film ◽  
Piezoelectric Thin Films

A PVDF film prepared on a salt solution is discovered to be self-polarized and is successfully applied in energy harvesting and pressure sensor.

Piezoelectric thin films: an integrated review of transducers and energy harvesting

2016 ◽  
Vol 25 (5) ◽  
pp. 053002 ◽  
Author(s):  
Asif Khan ◽  
Zafar Abas ◽  
Heung Soo Kim ◽  
Il-Kwon Oh
Keyword(s):  
Thin Films ◽  
Energy Harvesting ◽  
Piezoelectric Thin Films

scholarly journals Flexible vibrational energy harvesting devices using strain-engineered perovskite piezoelectric thin films

Nano Energy ◽  
2019 ◽  
Vol 55 ◽  
pp. 182-192 ◽  
Author(s):  
Sung Sik Won ◽  
Hosung Seo ◽  
Masami Kawahara ◽  
Sebastjan Glinsek ◽  
Jinkee Lee ◽  
...  
Keyword(s):  
Thin Films ◽  
Energy Harvesting ◽  
Vibrational Energy ◽  
Piezoelectric Thin Films ◽  
Energy Harvesting Devices ◽  
Vibrational Energy Harvesting

AlN piezoelectric thin films for energy harvesting and acoustic devices

Nano Energy ◽  
2018 ◽  
Vol 51 ◽  
pp. 146-161 ◽  
Author(s):  
Chunlong Fei ◽  
Xiangli Liu ◽  
Benpeng Zhu ◽  
Di Li ◽  
Xiaofei Yang ◽  
...  
Keyword(s):  
Thin Films ◽  
Energy Harvesting ◽  
Piezoelectric Thin Films

Flexible and Lead-free BCZT Thin Film Nanogenerator for Biocompatible Energy Harvesting

2021 ◽  
Author(s):  
Shiyuan Liu ◽  
Zhuomin Zhang ◽  
Yao Shan ◽  
Ying Hong ◽  
Fatma Farooqui ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Energy Harvesting ◽  
Medical Devices ◽  
High Performance ◽  
Piezoelectric Materials ◽  
Lead Free ◽  
Piezoelectric Thin Films

High-performance piezoelectric thin films generally contain toxic lead that limits the application scenarios especially on wearable and medical devices. Alternative lead-free piezoelectric materials such as Ba0.85Ca0.15-Zr0.1Ti0.9O3 (BCZT) have been proved...

Non-Lead Based Piezoelectric Thin Films: Materials and Energy Harvesting Device

2011 ◽  
Vol 2011 (CICMT) ◽  
pp. 000033-000036
Author(s):  
Seung-Hyun Kim ◽  
Alice Leung ◽  
Eun Young Lee ◽  
Lindsay Kuhn ◽  
Wenyan Jiang ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Energy Harvesting ◽  
Average Power ◽  
Low Frequency ◽  
Vibration Energy Harvesting ◽  
Piezoelectric Thin Films ◽  
Chemical Solution Deposition Method ◽  
Dense Microstructure ◽  
Low Frequency Vibration

Non-lead based piezoelectric thin films of (K,Na)(Nb,Ta)O3–BiFeO3 (NKNT-BF) were successfully fabricated by the chemical solution deposition method. Small concentration of BF (5 mol %) added into NKNT films led to a fully dense microstructure and enhanced dielectric and piezoelectric properties compared to pure NKNT films. The measured dielectric constant and piezoelectric d33 values were around 575 and 50 pC/N, respectively. A thin film NKNT-BF piezoelectric cantilever with a micromachined Si proof mass was fabricated for a low frequency vibration energy harvesting device. The average power and the power density of NKNT-BF energy harvesting cantilever with the device volume of 0.007 cm3 were 1.82 μW and 260 μW/cm3 at the resonance frequency of 130 Hz and the acceleration of 0.75 G. Even if these values were somewhat inferior to those of the conventional PZT energy harvesting device, NKNT-BF thin film provided the promising results as an alternative material of PZT for the piezoelectric MEMS applications in the future.

Integration and Optimisation of PZT Piezoelectric Thin Films in Micro and Nano Dimensional Structures

2009 ◽  
Vol 1 (3) ◽  
pp. 214-225 ◽  
Author(s):  
D. Remiens ◽  
C. Soyer ◽  
D. Troadec ◽  
D. Deresmes ◽  
D. Jenkins ◽  
...  
Keyword(s):  
Thin Films ◽  
Piezoelectric Thin Films

scholarly journals Generating Electricity from Natural Evaporation Using PVDF Thin Films Incorporating Nanocomposite Materials

Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 585
Author(s):  
Ariel Ma ◽  
Jian Yu ◽  
William Uspal
Keyword(s):  
Thin Films ◽  
Graphene Oxide ◽  
Polyvinylidene Fluoride ◽  
Capillary Flow ◽  
Short Circuit ◽  
Current Source ◽  
Nanocomposite Materials ◽  
The Other ◽  
Pvdf Film ◽  
Ambient Conditions

Natural evaporation has recently come under consideration as a viable source of renewable energy. Demonstrations of the validity of the concept have been reported for devices incorporating carbon-based nanocomposite materials. In this study, we investigated the possibility of using polymer thin films to generate electricity from natural evaporation. We considered a polymeric system based on polyvinylidene fluoride (PVDF). Porous PVDF films were created by incorporating a variety of nanocomposite materials into the polymer structure through a simple mixing procedure. Three nanocomposite materials were considered: carbon nanotubes, graphene oxide, and silica. The evaporation-induced electricity generation was confirmed experimentally under various ambient conditions. Among the nanocomposite materials considered, mesoporous silica (SBA-15) was found to outperform the other two materials in terms of open-circuit voltage, and graphene oxide generated the highest short-circuit current. It was found that the nanocomposite material content in the PVDF film plays an important role: on the one hand, if particles are too few in number, the number of channels will be insufficient to support a strong capillary flow; on the other hand, an excessive number of particles will suppress the flow due to excessive water absorption underneath the surface. We show that the device can be modeled as a simple circuit powered by a current source with excellent agreement between the theoretical predictions and experimental data.

Sign in / Sign up

Export Citation Format

Share Document