VDF-content-guided selection of piezoelectric P(VDF-TrFE) films in sensing and energy harvesting applications

Jiang, Huabei; Jiang, Yang; Xu, Fan; Wang, Qinhao; Li, Weilin; Chen, Qiusong; Wang, Conghuan; Zhang, Xiaoqing; Zhu, Guodong

doi:10.1016/j.enconman.2020.112771

Cited by 38 publications

(24 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, we could confirm that 70/30 P(VDF-TrFE) manifested typical ferroelectric characteristics, while the 50/50 P(VDF-TrFE) showed definite relaxor ferroelectric properties, even in the electrospun nanofiber feature. [30,49,58] The obtained P-E curve has a coercive field (E c ) range, similar to that of the previously known values with dense P(VDF-TrFE) films. Meanwhile, the P r value is slightly lower than the known values of general P(VDF-TrFE) films presumably because the internally large surface energy and air inclusions could interfere with the polarization.…”

Section: Resultssupporting

confidence: 85%

Ferroelectric Polymer Nanofibers Reminiscent of Morphotropic Phase Boundary Behavior for Improved Piezoelectric Energy Harvesting

Park

Lim

Cho

et al. 2022

Small

View full text Add to dashboard Cite

Ferroelectric and piezoelectric polymers have attracted great attention from many research and engineering fields due to its mechanical robustness and flexibility as well as cost‐effectiveness and easy processibility. Nevertheless, the electrical performance of piezoelectric polymers is very hard to reach that of piezoelectric ceramics basically and physically, even in the case of the representative ferroelectric polymer, poly(vinylidene fluoride‐co‐trifluoroethylene) (P(VDF‐TrFE)). Very recently, the concept for the morphotropic phase boundary (MPB), which has been exclusive in the field of high‐performance piezoelectric ceramics, has been surprisingly confirmed in P(VDF‐TrFE) piezoelectric copolymers by the groups. This study demonstrates the exceptional behaviors reminiscent of MPB and relaxor ferroelectrics in the feature of widely utilized electrospun P(VDF‐TrFE) nanofibers. Consequently, an energy harvesting device that exceeds the performance limitation of the existing P(VDF‐TrFE) materials is developed. Even the unpoled MPB‐based P(VDF‐TrFE) nanofibers show higher output than the electrically poled normal P(VDF‐TrFE) nanofibers. This study is the first step toward the manufacture of a new generation of piezoelectric polymers with practical applications.

show abstract

Section: Resultssupporting

confidence: 85%

Ferroelectric Polymer Nanofibers Reminiscent of Morphotropic Phase Boundary Behavior for Improved Piezoelectric Energy Harvesting

Park

Lim

Cho

et al. 2022

Small

View full text Add to dashboard Cite

show abstract

“…[55] In theory, [53,55] short-circuit current I sc of a piezoelectric capacitor operated in transverse piezoelectric mode is described by Equation (2) [56] and Y = 3.42 GPa. [36] Both experimental and theoretic values are well consistent, which further verifies that electrical response observed here is due to transverse piezoelectric property. Both observed short-circuit current responses can be further explained according to the schematic diagram in Figure 6c.…”

Section: Resultssupporting

confidence: 83%

“…Usually η is defined as the ratio between generated electric energy W g and the applied mechanical energy, i.e., the elastic strain energy W e stored in piezoelectric film. W g is determined by Equation (4) [36] W R I t t…”

Section: Resultsmentioning

confidence: 99%

“…However, our recent work indicated that, though 50/50 copolymer had the highest d 33 piezoelectric response, 70/30 one had the best transverse piezoelectric property and 55/45 one exhibited the largest energy conversion efficiency. [36] Recently epitaxial PVDF and P(VDF-TrFE) films were realized via highly ordered polytetrafluoroethylene (PTFE) templates, which were prepared by friction transfer method. [37][38][39][40][41] Grazing-incidence X-ray diffraction analyses indicated that epitaxy should be attributed to the lattice match between (010) P(VDF-TrFE) and (100) PTFE .…”

mentioning

confidence: 99%

See 1 more Smart Citation

Epitaxy Enhancement of Piezoelectric Properties in P(VDF‐TrFE) Copolymer Films and Applications in Sensing and Energy Harvesting

Jiang

Chen

et al. 2020

Adv Elect Materials

Self Cite

View full text Add to dashboard Cite

With the rapid development of science and technology, the giant breakthrough of environmentally friendly, efficient, and portable energy sources promotes rapid economic development and great progress in society. Over the past decades, various wearable electronic devices and portable flexible integrated devices have appeared in people's daily lives. These devices play an important role especially in fields of internet of things (IOT) and healthcare, including motion sensing, human health protection, and environmental monitoring. Usually external batteries are used to power these devices. This brings following disadvantages: first, the discarded battery causes pollution to environment; second, with the utilization of more and more sensors, it becomes a mission impossible to replace or recharge those used batteries; third, the presence of external batteries limits the portability of small-scale devices and also affects the biocompatibility between wearable devices and human body. Fortunately, in IOT and healthcare fields most of devices to be powered by batteries are usually of low energy consumption. [1] There exist many energy sources in environment waiting to be converted into electric energy to drive these devices. These sources include at least solar, thermal, and mechanical energies. The concept of nanogenerators was first proposed by using piezoelectric ZnO nanowire arrays to convert nanoscale mechanical energy into electrical energy. After that, piezoelectric, pyroelectric, triboelectric, and hybrid nanogenerators were proposed to convert one-source or even multisource energies into electric energy. Many inorganic and organic photoelectric materials were developed and even commercialized as solar cells, [2] while thermoelectric [3] and pyroelectric [4] effects were both utilized for thermal energy harvesting. Furthermore, mechanical energies widely spread in, such as, human walking, wind, ocean waves, vehicle vibration, and even sound wave. Mechanical energies can be harvested generally based on piezoelectric effect from inorganic and organic materials [5] and piezoelectrets, [6-8] With the rapid development of wearable and flexible electronics, energy harvesting from the environment has attracted much attention. As one representative piezoelectric polymer, poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] is an expected candidate for mechanical energy harvesting and self-powered mechanical sensors due to its flexibility and moderate piezoelectricity. However, low crystallinity and electroactivity limit its electric performance. Controllable modulation of microstructure and crystallization is one feasible measure to enhance piezoelectric property. Here the piezoelectric properties of epitaxial P(VDF-TrFE) films which are fabricated via removable polytetrafluoroethylene template method are reported. Piezoelectric measurement between 50 and 800 Hz presents an averaged d 33 coefficient of −40.7 pC N −1 for epitaxial film, ≈61% enhancement to that of non-epitaxial one. Transverse piezoelectric experiment...

show abstract

“…The experimental and simulation results presented that at a resonance frequency of 34.4 Hz and maximum stress 28.5 MPa, the power output and power density were 112.8 μW and 8.61 mW/cm 3 respectively. Jiang et al (2020) investigated the VDF content in P(VDF-TrFE) copolymer for piezoelectric performance by comparing the d 33 and d 31 modes of operation. The result indicated that the 50/50 copolymer can achieve an average d 33 value as high as 61.4 pC/N.…”

Section: Principle Of Piezoelectricity and Energy Harvestingmentioning

confidence: 99%

Recent advances in flexible PVDF based piezoelectric polymer devices for energy harvesting applications

Sukumaran

Chatbouri

Rouxel

et al. 2020

Journal of Intelligent Material Systems and Structures

131

View full text Add to dashboard Cite

Energy harvesting is one of the most promising research areas to produce sustainable power sources from the ambient environment. Which found applications to attain the extensive lifetime self-powered operations of various devices such as MEMS wireless sensors, medical implants and wearable electronic devices. Piezoelectric nanogenerators can efficiently convert the vastly available mechanical energy into electrical energy to meet the requirements of low-powered electronic devices. Among the piezoelectric materials, poly (vinylidene fluoride) (PVDF) and its copolymers are extensively studied for the development of energy harvesting devices. Due to the outstanding properties such as high flexibility, ease of processing, long-term stability, biocompatibility makes them a promising candidate for piezoelectric generators. Nevertheless, compared to piezoceramic materials, PVDF based generators produce lower piezoresponse. Over the last decades, tremendous research activities have been reported to endorse the performance of PVDF based energy harvesters. This review article mainly focused on the recent progress in the performance improvement with processing methods, piezoelectric materials, different filler loading. The new developments and design structures will lead to an increase in piezoelectricity, alignment of dipoles, dielectric properties and subsequently enhance the output performance of the device. Electronic circuits play a vital role in energy harvesting to efficiently collect the developed charge from the device. Here, we have proposed a detailed description of the electronic circuits. Also, in the application part deals with the recent progress in flexible, biomedical and hybrid generators based on PVDF polymers.

show abstract

VDF-content-guided selection of piezoelectric P(VDF-TrFE) films in sensing and energy harvesting applications

Cited by 38 publications

References 67 publications

Ferroelectric Polymer Nanofibers Reminiscent of Morphotropic Phase Boundary Behavior for Improved Piezoelectric Energy Harvesting

Ferroelectric Polymer Nanofibers Reminiscent of Morphotropic Phase Boundary Behavior for Improved Piezoelectric Energy Harvesting

Epitaxy Enhancement of Piezoelectric Properties in P(VDF‐TrFE) Copolymer Films and Applications in Sensing and Energy Harvesting

Recent advances in flexible PVDF based piezoelectric polymer devices for energy harvesting applications

Contact Info

Product

Resources

About