JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2019
·Vol. 31
·期 1
·677-683
·
IF 2.195
Wang Jing,Shen Bowen,Zhu Kongjun,Qiu Jinhao
With the ever increasing requirements for the structural health monitoring systems, the deposition of the piezoelectric films on the metallic or structural materials has turned out to be an important issue. Pb(Mg, Nb)O 3 -PbTiO 3 films with different buffer layers, i.e., in situ NiO, pre-fabricated NiO and LaNiO 3 , were successfully deposited on the Ni foil via the chemical solution deposition. The crystal structures and electric performances showed evident dependence on the buffer layer. Pre-deposited NiO and LaNiO 3 efficiently prevented the diffusion and complex reactions occurring at the interface, offered abundant nucleation sites, and thus helped the formation of pure high-qualified perovskite PMN-PT films at higher annealing temperatures.
研究领域:
材料科学
·
物理学
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Fei Yang,Denghui Shao,Taokai Liang,Mengzhe Hou,Bihui Zhang,Yizhuo Li,Weijin Hu,Xiaofang Li,Yanchun. Hu,Dawei Zhang,Xianwei Wang
The Pb 1–1.5x La x Zr 0.95 Ti 0.05 O 3 films with different La 3+ contents were successfully prepared on the LaNiO 3 /SiO 2 /Si substrates by sol-gel method. The effect of La 3+ doping on the microstructure, electrical properties, and energy storage performance of the films are systematically investigated. It is found that the introducing of La 3+ with a smaller tolerance factor could enhance the lattice distortion and compressive stresses, leading to smaller grain size, slimmer electric hysteresis loops, and lower phase transition field hysteresis. As a result, a relatively high energy storage density of 30.2 J/cm 3 together with the energy storage efficiency of 62.2% has been achieved in Pb 0.82 La 0.12 Zr 0.95 Ti 0.05 antiferroelectric thin films with the optimum doping content. This improvement is largely attributed to the enhanced breakdown field strength from 1442 kV/cm to 1564 kV/cm as a result of grain size reduction. Our results demonstrate the crucial role of decreased tolerance factor in stabilizing the antiferroelectric phase and enhancing the phase transition electric field, and provide an effective route to enhance the energy storage performance of antiferroelectric thin films.
研究领域:
材料科学
·
物理学
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2016
·Vol. 28
·期 1
·487-492
·
IF 1.798
Zhang Xinxiu,Liu Jinsong,Zhu Kongjun,Wang Jing,Li Ziquan,Qiu Jinhao
High-quality lead-free piezoelectric x Mn-doped (K 0.48 Na 0.52 ) 0.985 Li 0.015 NbO 3 films (KNLN; x = 0, 0.01, 0.02, 0.03) were successfully deposited onto Pt(111)/Ti/SiO 2 /Si(100) substrates by sol–gel method. Effects of Mn substitution on the microstructure, dielectric properties, ferroelectric properties, and leakage current of the KNLN films were investigated in detail. Mn-doping can significantly improve the ferroelectric properties and decrease the leakage current of KNLN films. Optimal dielectric properties were obtained in films doped with 2 mol% Mn, whose dielectric constant and dielectric loss at 1 kHz were 875 and 0.030, respectively. In addition, well-saturated ferroelectric P - E hysteresis loop with large remanent polarization (2 P
r ) and coercive field ( E
c ) of 22.5 μC/cm 2 and 65 kV/cm were obtained in 2 mol% Mn-doped KNLN film at an applied electric field of 200 kV/cm.
研究领域:
材料科学
·
物理学
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DOI
高影响因子
Materials Horizons
·
2023
·Vol. 10
·期 8
·3140-3152
·
IF 13.3
Chao Yan,Xiangming Li,Zhengjie Yang,Xiaopei Wang,Hao Ran,Ruolin Zhang,Hongmiao Tian,Chunhui Wang,Xiaoliang Chen,Jinyou Shao
The voltage outputs of flexible piezoelectric films after bending deformation have always been limited by two factors, including the incompatible polarization direction with bending strain and the interfacial fatigue failure between the piezoelectric films and the electrode layers, largely hindering the applications in wearable electronics. Herein, we demonstrate a new piezoelectric film design, where 3D-architectured microelectrodes are fabricated inside a piezoelectric film by electrowetting-assisted printing of conductive nano-ink into the pre-formed meshed microchannels in the piezoelectric film. The 3D architectures increase the piezoelectric output of a typical P(VDF-TrFE) film by more than 7 fold compared with the conventional planar design at the same bending radius, and, more importantly, decrease the output attenuation down to only 5.3% after 10 000 bending cycles, less than one third of that for the conventional design. The dependence of piezoelectric outputs on feature sizes of 3D microelectrodes was investigated numerically and experimentally, providing a route for optimizing the 3D architecture design. Different composite piezoelectric films with internal 3D-architectured microelectrodes were fabricated, exhibiting improved piezoelectric outputs under bending deformations, demonstrating that our printing methods could have broad applications in various fields. The fabricated piezoelectric films, worn on human fingers, are used for remotely controlling the robot hand gestures by human–machine interaction; furthermore, the fabricated piezoelectric patches are used to successfully sense the pressure distribution by integrating with spacer arrays to convert the pressing movement into bending deformation, demonstrating the enormous potential of our piezoelectric films in practical applications.
研究领域:
材料科学
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电子工程
·
柔性电子技术
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DOI
PubMed
高影响因子
Materials Research Express
·
2020
·Vol. 7
·期 1
·016437
·
IF 1.929
Linchen Liao,Caifeng Chen,Jilong Qian,Youming Zhang,Ruifang Zhang,Jiaguang Zhu
PVDF/IL piezoelectric film based on [Emim]BF4-added was prepared by near electric field direct writing. The β-phase content and its electric property of the film were analyzed. The results showed that the content of β crystal phase of PVDF film was improved by the synergistic effect of IL ([Emim]BF4) and near electric field. When the amount of [Emim]BF4 added was 1.5 wt%, the relative β-phase content of PVDF film reached 85.09%, and the crystallinity is 47.84%. Increase in [Emim]BF4 content resulted in a significant increase in the relative dielectric constant of the film, from 6 to 285, but also accompanied by a sharp increase in dielectric loss. The d33 value of the film can be as high as −10 pC/N, and the output voltage from the cantilever beam vibration feedback indicates that the voltage strength of the [Emim]BF4-added film is greatly improved compared with the pure PVDF film.
研究领域:
材料科学
·
物理学
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DOI
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
·
2024
·
IF 5.6
Lin Li,Runkai Wang,Jiangyan Ji,Tong Wu,Dongdong Liu,Xinjian Hu,Fei Chai
This study presents an efficient extraction of nanocellulose crystals (CNCs) and nanofibers (CNFs) through ultrasound-assisted TEMPO oxidation method using deep-processed heavy metal-containing calabash as raw material. The extraction method, integrating TEMPO-mediated oxidation and ultrasound techniques, enhanced the yield of CNCs and CNFs. The results demonstrate that CNCs yielded 63 %, with a carboxyl content of 1.27 mmol/g, while CNFs yielded 31 %, with a carboxyl content of 1.21 mmol/g. CNCs and CNFs exhibited excellent mechanical properties, with CNCs having an average length of 214.4 nm, average diameter of 2.72 nm, and a length-to-diameter ratio of 78.8. CNFs had an average length of 437.8 nm, average diameter of 5.7 nm, and a length-to-diameter ratio of 76.8. X-ray diffraction (XRD) results showed crystallinity of 87.1 % for CNCs and 81.2 % for CNFs. The thermal stability of the fibers was confirmed up to 230℃. The film prepared by combining 10 % PVA with 90 % CNC exhibited a tensile strength of 32.11 MPa, Young's modulus of 2027.1 MPa, and could generate a maximum voltage of 0.83 V. This study provides an effective pathway for the value-added utilization of deep-processed calabash and highlights the broad application prospects of the composite film in the field of flexible sensors.
研究领域:
材料科学
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环境科学
·
能源科学
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DOI
高影响因子
TALANTA
·
2020
·
IF 5.339
Jinlin Liu,Da Chen,Peng Wang,Ge Song,Xiaojun Zhang,Zhongli Li,Yanyan Wang,Jingjing Wang,Jun Yang
Portable, and automated biosensors for the detection of cardiac biomarkers are important for the early diagnosis of acute myocardial infarction. We demonstrate a label-free microfabricated thickness shear mode electroacoustic device based on a ZnO piezoelectric film for the assay of cardiac biomarkers. This device combines an immunologic sensitive element with the resonator working in biological liquids. Based on the gravimetric mechanism, the immunoreaction between the target antigens and antibodies was detected by monitoring the frequency change in real-time to determine the concentration of cardiac troponins I. The device exhibits a linear response from 0.04 to 2 ng/ml and a low detection limit of 20 pg/ml in serum containing cardiac troponin I. The clinical samples collected from healthy controls and cardiac patients were directly used without any additional pre-treatment. The cardiac troponin concentrations measured by the proposed device shows good linear correlation and consistency compared with standard laboratory methods. The results indicate that the device can to be a feasible tool for sensitive, rapid, and miniaturized point-of-care analytical systems.
研究领域:
生物医学工程
·
临床诊断
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DOI
PubMed
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
·
2021
·
IF 4.094
Chao Zhang,Huajun Sun,Quanyao Zhu
Poly(vinylidene fluoride) (PVDF)-based film is a typical kind of piezoelectric films with wide applications, which is mainly prepared by the casting process. It is difficult to obtain large-area film and realize continuous fabrication. In this paper, Firstly, PVDF/PZT@105(lead zirconate titanate)/GO(graphene oxide) composite films with various GO contents were prepared via the casting process, and through comparison among the dielectric and mechanical properties , the optimum GO addition amount was determined. Subsequently, PVDF-based piezoelectric film(PVDF/PZT@105/GO)was prepared via the extrusion-casting process. Comparison between the composite films prepared by two different processes were taken. Note that the extrusion-casting process is favorable for obtaining superior properties such as higher density, dielectric constant, breakdown strength , and piezoelectric coefficient. Besides, during the exploration of the polarization technology it is found that the improvement of polarization field intensity tends to be is the most important factor affecting the piezoelectric properties of the film. The piezoelectric coefficient ( d 33 ) of PVDF/PZT@105/GO film prepared by the extrusion-casting process can reach 26 pC/N. Finally, the electrodeformation effect of the composite film was studied, obtaining the electromechanical strain up to 2%, which is much bigger than the piezoelectric ceramics ever been reported and can be used in the microfluidic field.
研究领域:
材料科学
·
传感器技术
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Zaitian Wang,Xuan Li,Fei Sun,Kaining Zhang,Fei Long,Tong Zhou,Lei Liu
Flexible piezoelectric films represent a groundbreaking advancement for wearable energy harvesting and bioelectronics, where mechanical adaptability and efficient electromechanical conversion are equally crucial. However, the persistent incompatibility between high piezoelectric coefficients and structural pliability creates a critical performance ceiling that undermines device reliability in dynamic operating environments. Here, we report an in situ interface engineering strategy to fabricate high-performance flexible piezoelectric films directly on Ti foils through combining hydrothermal synthesis of BaTiO 3 films with infiltration of P(VDF-TrFE). The flexible P(VDF-TrFE)/BaTiO 3 film with spatially interlocked heterostructure exhibits an excellent piezoelectric coefficient d 33 of ~264 pC N −1 , representing an enhanced remnant polarization of 21.4 μC cm −2 and a reduced coercive field of 220 kV cm −1 . The as-prepared piezoelectric film assembled on the Ti foil substrates demonstrates long-lasting flexibility, retaining an output voltage of about 5 V after 5000 bending cycles. The exceptional performance originates from the improved polarization through the stabilized BTO nanodomain synthesized by the in situ hydrothermal process. Furthermore, the spatially interlocked architecture redistributes polarized charges, thereby mitigating polarization degradation induced by microscale defects. This study pioneers a new paradigm for developing high-performance flexible piezoelectric film, and the scalable process can be potentially applied to wearable applications.
研究领域:
材料科学
·
纳米技术
·
能源采集
·
生物电子学
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Yujie Wu,Chun-Yan Tang,Shan Wang,Jiaxing Guo,Qi Jing,Junhong Liu,Kai Ke,Yu Wang,Wei Yang
Flexible piezoelectric pressure sensors have aroused a plethora of applications in wearable electronics, acoustic transducers, and energy harvesters thanks to many merits such as prompt response, good signal linearity, and ease of shaping. However, as all-polymer piezoelectric films have a low piezoelectric coefficient and severe stress dissipation, it is currently challenging to achieve a high piezoelectric output for the foregoing applications without introducing nanomaterials or piezoelectric ceramics. Here, we report a local stress engineering strategy to fabricate biomimetic all-fluoropolymer piezoelectric film pressure sensors with high-modulus poly(vinylidene fluoride) (PVDF) nanospheres embedded on low-modulus poly(vinylidene fluoride-trifluoride ethylene) (PVDF-TrFE) nanofibers for highly sensitive acoustic detection. High-modulus PVDF nanospheres create many local stress concentration sites on PVDF-TrFE nanofibers and increase the local deformation, leading to significantly improved force/pressure sensitivity. As such, by comparison with the force sensitivity of 60 mV/N for neat PVDF-TrFE, the heteromodulus fiber mats with 10 wt % PVDF nanospheres can achieve a force sensitivity of 145.1 mV/N over 0–25 N dynamic impact force (i.e., 0 ∼ 250 kPa pressure), together with an acoustic detection limit as low as 60 dB or 0.02 Pa.
研究领域:
材料科学
·
柔性电子
·
传感器技术
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产品关联
DOI
PubMed
高影响因子
Nano Energy
·
2020
·
IF 16.602
Tao Wu,Yiheng Song,Zhuqun Shi,Dongning Liu,Siling Chen,Chuanxi Xiong,Quanling Yang
High-performance and environment-friendly biomass-based piezoelectric films have drawn much attention recently. Here, 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized cellulose nanofibril (TOCN)/molybdenum disulfide (MoS 2 ) nanosheet bionanocomposite piezoelectric films were prepared through an environmentally benign pathway by aqueous dispersion. The TOCN/MoS 2 nanocomposite films exhibited good mechanical properties with the highest Young’s modulus of 8.2 GPa and tensile strength of 307 MPa. When the MoS 2 content was 4 wt%, the longitudinal piezoelectric constant ( d 33 ) of the composite film reached a maximum value of 31 pC/N, much higher than 12 pC/N of the neat TOCN film and other reported cellulose-based piezoelectric films. Moreover, nanogenerators fabricated from TOCN/MoS 2 composite films exhibited a maximum output voltage of 4.1 V and a short-circuit current of 0.21 μA. Furthermore, the current generated by the nanogenerator was rectified and converted to direct current. A 10 μF commercial capacitor was charged to 1.6 V at 120 s, indicating the ability to collect mechanical energy generated in the natural environment. Therefore, the TOCN/MoS 2 composite films are promising in the field of piezoelectric materials and nanogenerators.
研究领域:
材料科学
·
能源技术
·
纳米科技
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产品关联
DOI
高影响因子
COMPOSITES PART B-ENGINEERING
·
2025
·
IF 14.2
Wenzheng Chen,Sijia Li,Mingyu Lu,Yiping Guo,Hao Yin,Yujie Chen,Qunfu Fan,Hezhou Liu,Hua Li
The “Brick-and-Mortar” structure endows the nacre outstanding abilities of dissipating kinetic energy, attenuating stress wave and keeping high mechanical strength. However, current artificial bio-inspired materials, such as the materials with unit structure arranged in an ordered hierarchy at merely one dimension, have yet to achieve desirable damping and mechanical behavior under monotonous damping mechanisms. Herein, the nacre-like structure, conductive network, and nano piezoelectric thin film are synergistically combined in multidimension to enhance the damping and vibration attenuating behavior by different mechanisms. The continuous piezoelectric composites with nacre-like lamellar structure demonstrates superior damping property. By introducing a conductive network, piezoelectric damping is enabled, and the damping behavior is further promoted, achieving a maximum loss factor of 1.19 and tanδ area value of 34.28. The nacre-like structure in macro dimension offers the framework of PZT thin film in nano dimension, and the conductive network in micro dimension stimulates the continuous piezoelectric damping, in which the contribution of each dimension is decoupled. Based on this finding, the vibration attenuating behavior is evaluated by cantilever beam vibration test where the composites lower 26.2 dB and damping ratio increase by 95%, which are greatly demanded for many damping applications including watercraft structures and aerospace scaffold.
研究领域:
材料科学
·
机械工程
·
复合材料
·
智能材料
·
仿生工程
·
压电效应
·
振动控制
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）