1
|
Graham SA, Manchi P, Paranjape MV, Yu JS. Mechanical and Acoustic-Driven BiFeO 3 Composite Films-Based Hybrid Nanogenerator for Energy Harvesting and Sensing Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308428. [PMID: 38072813 DOI: 10.1002/smll.202308428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/16/2023] [Indexed: 05/18/2024]
Abstract
Nanogenerators for acoustic energy harvesting are still in the early stage of development, and many challenges such as the optimization of device structure and the design of efficient and sensitive materials need to be addressed. To solve the above-mentioned problems, herein, advancement in synthesized multiferroic material for hybridizing the nanogenerator and efficient harvesting of various energies such as acoustic, mechanical, and vibrational energies is reported. Initially, bismuth ferrate (BiFeO3, BFO)-based composite films are prepared with high ferroelectric and dielectric coefficients. The hybrid nanogenerator (HNG) based on a 3D-printed structure has the highest electrical output which is further improved depending on the BFO loading concentration in the composite film. The 0.5 wt% BFO-loaded PVDF-based HNG offers the enhanced open circuit voltage, short circuit current, and charge density values of ≈30 V, ≈1 µA, and ≈10 µC/m2, respectively. The optimized HNG is employed to harvest mechanical energy from everyday human life. Furthermore, the HNG layers are used in the fabrication of a multi-energy harvester/sensor (MEH/S) which can harvest/sense various vibrational and acoustic energies under different acoustic frequencies and amplitudes, respectively. The harvested energy from the MEH/S is tested to power portable electronics.
Collapse
Affiliation(s)
- Sontyana Adonijah Graham
- Department of Electronics and Information Convergence Engineering, Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-Si, Gyeonggi-do, 17104, Republic of Korea
| | - Punnarao Manchi
- Department of Electronics and Information Convergence Engineering, Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-Si, Gyeonggi-do, 17104, Republic of Korea
| | - Mandar Vasant Paranjape
- Department of Electronics and Information Convergence Engineering, Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-Si, Gyeonggi-do, 17104, Republic of Korea
| | - Jae Su Yu
- Department of Electronics and Information Convergence Engineering, Institute for Wearable Convergence Electronics, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-Si, Gyeonggi-do, 17104, Republic of Korea
| |
Collapse
|
2
|
Maiti P, Sasmal A, Arockiarajan A, Mitra R. Ionic liquid modified PVDF/BCZT nanocomposites for space charge induced mechanical energy harvesting performance. NANOTECHNOLOGY 2024; 35:245401. [PMID: 38467060 DOI: 10.1088/1361-6528/ad3258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 03/10/2024] [Indexed: 03/13/2024]
Abstract
Mechanical energy harvesting performances of poly(vinylidene fluoride) (PVDF) based composites are most often correlated with their polar phase and the individual piezoelectricity of the used filler materials. Here we show that the significant enhancement of space charge polarization of the said composites can play the key dominant role in determining their mechanical energy harvesting performance regardless of their polar phase and individual piezoelectricity of the used fillers. For this purpose, ionic liquid has been incorporated into PVDF/0.5(Ba0.7Ca0.3)TiO3-0.5Ba(Ti0.8Zr0.2)O3(BCZT) composites which led to a huge enhancement in space charge polarization. The gradual addition of ionic liquid into 10 wt% BCZT loaded PVDF (PBCZT) has helped in extraordinarily enhancing the conductivity gradually which has confirmed the huge enhancement of space charge polarization. However, after a certain limit of ionic liquid addition, the polar phase of the composite films is decreased. Despite this, the output voltages from the piezoelectric and piezo-tribo hybrid nanogenerators (PENGs and HNGs, respectively) fabricated by using the developed films have been found to be increased gradually with the increase in the ionic liquid amount in PBCZT composite. As the amount of BCZT filler was kept fixed for all the films, this result has confirmed the key role of space charge polarization of PVDF-based composites in determining their mechanical energy harvesting performances compared to the effect of polar phase and individual piezoelectricity of filler. The optimized PENG and HNG devices have shown the output voltage as high as 52 and 167 V, respectively, with power densities ∼85 and 152μW cm-2which predicted their excellent usability in real life energy conversion devices. This work also shows that the effect of extraordinarily enhanced space charge polarization is effective in improving the performance of all types of mechanical energy harvesting devices regardless of their mechanisms (piezoelectric or hybrid).
Collapse
Affiliation(s)
- Payel Maiti
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur (IIT Kharagpur), Kharagpur, West Bengal, 721302, India
| | - Abhishek Sasmal
- Department of Applied Mechanics, Indian Institute of Technology Madras (IIT Madras), Chennai, Tamil Nadu, 600036, India
| | - A Arockiarajan
- Department of Applied Mechanics, Indian Institute of Technology Madras (IIT Madras), Chennai, Tamil Nadu, 600036, India
- Centre of Excellence in Ceramics Technologies for Futuristic Mobility, Indian Institute of Technology Madras (IIT Madras), Chennai, Tamil Nadu, 600036, India
| | - Rahul Mitra
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur (IIT Kharagpur), Kharagpur, West Bengal, 721302, India
| |
Collapse
|
3
|
Li F, Guo S, Shi J, An Q. Flexible Composites for Piezocatalysis. Chempluschem 2023; 88:e202300324. [PMID: 37669420 DOI: 10.1002/cplu.202300324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/02/2023] [Accepted: 09/04/2023] [Indexed: 09/07/2023]
Abstract
Despite piezoelectric materials have a long history of application, piezoelectric catalysis has continued to be a hot topic in recent years. Flexible piezoelectric materials have just emerged in recent years due to their versatility and designability. In this paper, we review the recent advances in flexible piezoelectric materials for catalysis, discuss the fundamentals of the catalytic properties of composite materials, and detail the typical structures of these materials. We pay special attention to the types of filler in flexible piezoelectric composites, their role and the interaction between the particles and the flexible substrate. Notable examples of flexible piezoelectric materials for organic pollutants degradation, enhanced piezo-photocatalysis and antibacterial applications are also presented. Finally, we present key issues and future prospects for the development of flexible piezoelectric catalysts.
Collapse
Affiliation(s)
- Fujing Li
- College of Materials Science and Engineering, China University of Geosciences, Beijing, No.29 Xueyuan Road, Haidian District, Beijing, China
| | - Sufang Guo
- College of Materials Science and Engineering, China University of Geosciences, Beijing, No.29 Xueyuan Road, Haidian District, Beijing, China
| | - Jing Shi
- College of Materials Science and Engineering, China University of Geosciences, Beijing, No.29 Xueyuan Road, Haidian District, Beijing, China
| | - Qi An
- College of Materials Science and Engineering, China University of Geosciences, Beijing, No.29 Xueyuan Road, Haidian District, Beijing, China
| |
Collapse
|
4
|
Sasmal A, Maity S, Arockiarajan A, Sen S. Electroactive properties and piezo-tribo hybrid energy harvesting performances of PVDF-AlFeO 3 composites: role of crystal symmetry and agglomeration of fillers. Dalton Trans 2023; 52:14837-14851. [PMID: 37791868 DOI: 10.1039/d3dt02547k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Inorganic filler-loaded PVDF-based composites have been very widely used for electrical and energy harvesting applications in recent times. In this regard, the effects of different parameters of fillers like size, shape, chemical states, distribution, functional properties, and many others on the output performance of PVDF have been widely studied. However, the effect of another important parameter, namely the crystal symmetry of the filler, in tuning the energy harvesting performance of PVDF has been rarely explored. Therefore, to explore this fact, here we develop PVDF-based composite films by using two types of AlFeO3 fillers, one with rhombohedral R3̄c symmetry (AFRH) and another with an orthorhombic Pc21n structure. Ferrite-based oxides have been chosen here as fillers due to their good dielectric compatibility with PVDF. On the other hand, AlFeO3 has been chosen due to the simplicity of synthesizing it with both centrosymmetric and non-centrosymmetric crystal structures and the scarcity of reports exploring the energy-harvesting performance of AlFeO3-based polymer composites. A significant difference in particle agglomeration has also been observed here between the mentioned two types of AlFeO3 fillers which was mainly due to their specific synthesis conditions. The electroactive properties of PVDF have been observed to be mostly dependent on filler agglomeration. However, the crystal symmetry has shown a strong effect on the piezoelectric energy harvesting performances. As a result of these facts, the piezo-tribo hybrid energy harvesting performance, which depends on both the dielectric permittivity and piezoelectric activity, has been observed to be better for the AFRH5-based hybrid device (AFRH5H) (with ∼72 V open circuit voltage and ∼45 μW cm-2 power density) compared to that of the AFOR5-based hybrid device (AFOR5H). The real-life applications of all the energy harvesting devices have also been demonstrated here.
Collapse
Affiliation(s)
- Abhishek Sasmal
- Functional Materials and Devices Division, CSIR-Central Glass & Ceramic Research Institute, Kolkata - 700032, India.
- Department of Applied Mechanics, Indian Institute of Technology Madras, Chennai - 600036, India
| | - Sourav Maity
- Functional Materials and Devices Division, CSIR-Central Glass & Ceramic Research Institute, Kolkata - 700032, India.
| | - A Arockiarajan
- Department of Applied Mechanics, Indian Institute of Technology Madras, Chennai - 600036, India
- Centre of Excellence in Ceramics Technologies for Futuristic Mobility, Indian Institute of Technology Madras (IIT Madras), Chennai, Tamil Nadu - 600036, India
| | - Shrabanee Sen
- Functional Materials and Devices Division, CSIR-Central Glass & Ceramic Research Institute, Kolkata - 700032, India.
| |
Collapse
|
5
|
Sasmal A, Senthilnathan J, Arockiarajan A, Yoshimura M. Two-Dimensional Metal-Organic Framework Incorporated Highly Polar PVDF for Dielectric Energy Storage and Mechanical Energy Harvesting. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1098. [PMID: 36985992 PMCID: PMC10058605 DOI: 10.3390/nano13061098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 03/15/2023] [Accepted: 03/15/2023] [Indexed: 06/18/2023]
Abstract
Here, we introduce a 2D metal-organic framework (MOF) into the poly(vinylidene fluoride) (PVDF) matrix, which has been comparatively less explored in this field. Highly 2D Ni-MOF has been synthesized in this regard via hydrothermal route and has been incorporated into PVDF matrix via solvent casting technique with ultralow filler (0.5 wt%) loading. The polar phase percentage of 0.5 wt% Ni-MOF loaded PVDF film (NPVDF) has been found to be increased to ~85% from a value of ~55% for neat PVDF. The ultralow filler loading has inhibited the easy breakdown path along with increased dielectric permittivity and hence has enhanced the energy storage performance. On the other hand, significantly enriched polarity and Young's Modulus has helped in improving its mechanical energy harvesting performance, thereby enhancing the human motion interactive sensing activities. The piezoelectric and piezo-tribo hybrid devices made up of NPVDF film have shown improved output power density of ~3.26 and 31 μW/cm2 compared to those of the piezoelectric and piezo-tribo hybrid devices comprising of neat PVDF (output power density ~0.6 and 17 μW/cm2, respectively). The developed composite can thus be considered an excellent candidate for multifunctional applications.
Collapse
Affiliation(s)
- Abhishek Sasmal
- Department of Applied Mechanics, Indian Institute of Technology Madras (IIT Madras), Chennai 600036, Tamil Nadu, India;
| | - Jaganathan Senthilnathan
- Department of Civil Engineering, Indian Institute of Technology Madras (IIT Madras), Chennai 600036, Tamil Nadu, India
| | - Arunachalakasi Arockiarajan
- Department of Applied Mechanics, Indian Institute of Technology Madras (IIT Madras), Chennai 600036, Tamil Nadu, India;
- Centre of Excellence in Ceramics Technologies for Futuristic Mobility, Indian Institute of Technology Madras (IIT Madras), Chennai 600036, Tamil Nadu, India
| | - Masahiro Yoshimura
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan 70101, Taiwan
| |
Collapse
|
6
|
Wang H, Wang Y, Wang B, Li M, Li M, Wang F, Li C, Diao C, Luo H, Zheng H. Significantly Enhanced Breakdown Strength and Energy Density in Nanocomposites by Synergic Modulation of Structural Design and Low-Loading Nanofibers. ACS APPLIED MATERIALS & INTERFACES 2022; 14:55130-55142. [PMID: 36448296 DOI: 10.1021/acsami.2c18113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Polymer-based dielectric nanocomposites have attracted great attention due to the advantages of high-power density and stability. However, due to the limited breakdown strength (Eb) of the dielectrics, the unsatisfactory energy density becomes the bottleneck that restricts their applications. Here, newly designed sandwich-structured nanocomposites are proposed, which includes the introduction of low-loading 0.4BiFeO3-0.6SrTiO3 (BFSTO) nanofibers into the poly(vinylidene fluoride-co-hexafluoropropylene) (P(VDF-HFP)) matrix as the polarization layer (B-layer) to offer high permittivity and the selection of poly(methylmethacrylate) (PMMA)/P(VDF-HFP) all-organic blend film as the insulation layer (P-layer) to improve Eb of the nanocomposites. The optimized sandwich-structured PBP nanocomposite exhibits significant enhancement in Eb (668.6 MV/m), generating a discharged energy density of 17.2 J/cm3. The dielectric and Kelvin probe force microscope results corroborate that the outer P-layer has a low surface charge density, which can markedly impede the charge injection from the electrode/dielectric interface and thereby suppress the leakage current inside the nanocomposite. Furthermore, both the finite element simulations and capacitive series models demonstrate that the homogenized distribution of electric field in the PBP sandwich-structured nanocomposite favors the improvement of energy storage performance. This work not only provides insightful guidance into the in-depth understanding of the dielectric breakdown mechanism in sandwich-structured nanocomposites but also offers a novel paradigm for the development of polymer-based nanocomposites with high Eb and discharged energy density.
Collapse
Affiliation(s)
- Hao Wang
- Henan Province Engineering Research Center of Smart Micro-Nano Sensing Technology and Application, School of Physics and Electronics, Henan University, Kaifeng475004, China
| | - Yan Wang
- Henan Province Engineering Research Center of Smart Micro-Nano Sensing Technology and Application, School of Physics and Electronics, Henan University, Kaifeng475004, China
| | - Boying Wang
- Henan Province Engineering Research Center of Smart Micro-Nano Sensing Technology and Application, School of Physics and Electronics, Henan University, Kaifeng475004, China
| | - Mingqing Li
- Henan Province Engineering Research Center of Smart Micro-Nano Sensing Technology and Application, School of Physics and Electronics, Henan University, Kaifeng475004, China
| | - Mingtao Li
- Henan Province Engineering Research Center of Smart Micro-Nano Sensing Technology and Application, School of Physics and Electronics, Henan University, Kaifeng475004, China
| | - Feng Wang
- Henan Province Engineering Research Center of Smart Micro-Nano Sensing Technology and Application, School of Physics and Electronics, Henan University, Kaifeng475004, China
| | - Chaolong Li
- Henan Province Engineering Research Center of Smart Micro-Nano Sensing Technology and Application, School of Physics and Electronics, Henan University, Kaifeng475004, China
| | - Chunli Diao
- Henan Province Engineering Research Center of Smart Micro-Nano Sensing Technology and Application, School of Physics and Electronics, Henan University, Kaifeng475004, China
| | - Hang Luo
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan410083, China
| | - Haiwu Zheng
- Henan Province Engineering Research Center of Smart Micro-Nano Sensing Technology and Application, School of Physics and Electronics, Henan University, Kaifeng475004, China
| |
Collapse
|
7
|
Sasmal A, Sen S, Arockiarajan A. Strategies Involved in Enhancing the Capacitive Energy Storage Characteristics of Poly(vinylidene fluoride) Based Flexible Composites. ChemistrySelect 2022. [DOI: 10.1002/slct.202202058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Abhishek Sasmal
- Functional Materials and Devices Division (FMDD) CSIR-Central Glass & Ceramic Research Institute (CSIR-CGCRI) Kolkata West Bengal 700032 India
- Department of Applied Mechanics Indian Institute of Technology Madras Chennai 600036 India
| | - Shrabanee Sen
- Functional Materials and Devices Division (FMDD) CSIR-Central Glass & Ceramic Research Institute (CSIR-CGCRI) Kolkata West Bengal 700032 India
| | - Arunachalakasi Arockiarajan
- Department of Applied Mechanics Indian Institute of Technology Madras Chennai 600036 India
- Ceramic Technologies Group-Center of Excellence in Materials and Manufacturing for Futuristic Mobility Indian Institute of Technology-Madras (IIT Madras) 600036 Chennai India
| |
Collapse
|
8
|
Pratihar S, Patra A, Sasmal A, Medda SK, Sen S. Enhanced dielectric, ferroelectric, energy storage and mechanical energy harvesting performance of ZnO-PVDF composites induced by MWCNTs as an additive third phase. SOFT MATTER 2021; 17:8483-8495. [PMID: 34586137 DOI: 10.1039/d1sm00854d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The present work highlights an attempt of fabricating a nanocomposite by the addition of multi-walled carbon nanotubes (MWCNTs) as a third phase into flexible ZnO-poly(vinylidene fluoride) (ZnO-PVDF) composites. MWCNTs played a very important role in distributing ZnO fillers in the PVDF matrix more homogeneously and increased the connection capability. Enhancement of the piezoelectric phase, dielectric permittivity, ferroelectric polarization, energy storage density and mechanical energy harvesting performance of ZnO-PVDF composites after the addition of MWCNTs was confirmed from the respective characterization studies. The sensing capability was demonstrated by the generation of ∼22 V ac output voltage through the application of human finger tapping on 15 wt% ZnO and a 0.1 wt% MWCNT-loaded PVDF (15PZNT) based composite film. The rectified voltage from the fabricated 15PZNT film was used to charge a 10-μF capacitor up to ∼3 V which was used for the illumination of 30 commercial LEDs. The maximum power density from the film was found to be 21.41 μW cm-2 at 4 MΩ load resistance. The effect of the addition of MWCNTs was also verified by simulation using COMSOL Multiphysics software.
Collapse
Affiliation(s)
- Shewli Pratihar
- Functional Materials and Devices Division, CSIR-Central Glass and Ceramic Research Institute, Kolkata-700032, West Bengal, India.
| | - Aniket Patra
- Dipartimento di Fisica, Universita della Calabria, Rende-87036, Italy
| | - Abhishek Sasmal
- Functional Materials and Devices Division, CSIR-Central Glass and Ceramic Research Institute, Kolkata-700032, West Bengal, India.
| | - Samar Kumar Medda
- Speciality Glass Technology Division, CSIR-Central Glass and Ceramic Research Institute, Kolkata-700032, West Bengal, India
| | - Shrabanee Sen
- Functional Materials and Devices Division, CSIR-Central Glass and Ceramic Research Institute, Kolkata-700032, West Bengal, India.
| |
Collapse
|
9
|
Boonlakhorn J, Manyam J, Krongsuk S, Thongbai P, Srepusharawoot P. Enhanced dielectric properties with a significantly reduced loss tangent in (Mg 2+, Al 3+) co-doped CaCu 3Ti 4O 12 ceramics: DFT and experimental investigations. RSC Adv 2021; 11:25038-25046. [PMID: 35481037 PMCID: PMC9036887 DOI: 10.1039/d1ra02896k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 07/12/2021] [Indexed: 11/21/2022] Open
Abstract
CaCu3Ti4O12 and CaCu2.95Mg0.05Ti3.95Al0.05O12 ceramics were fabricated via a solid-state reaction method. A single-phase of CaCu3Ti4O12 was found in these two ceramics. Very great grain size expansion was produced by co-doping with Mg2+ and Al3+. DFT results indicate that both Mg and Al atoms preferentially occupy Cu sites, creating liquid-phase sintering decomposition at grain boundary layers. Very high dielectric permittivity of ∼58 397 and low loss tangent of about 0.047 were achieved in a CaCu2.95Mg0.05Ti3.95Al0.05O12 ceramic. Additionally, the temperature stability of the dielectric response was improved. Better dielectric properties in the co-doped ceramic have possible origins from enhanced grain boundary responses, especially from the influences of metastable phases and oxygen enrichment at the grain boundaries. Experimental and computational results indicate that the colossal dielectric properties in CaCu3Ti4O12 ceramics might be correlated with an internal barrier layer capacitor structure. Mg and Al atoms preferentially occupy Cu sites, creating liquid-phase sintering decomposition at grain boundary layers. This results in very high dielectric permittivity and a low loss tangent of the CaCu2.95Mg0.05Ti3.95Al0.05O12 ceramic.![]()
Collapse
Affiliation(s)
- Jakkree Boonlakhorn
- Giant Dielectric and Computational Design Research Group (GD-CDR), Department of Physics, Faculty of Science, Khon Kaen University Khon Kaen 40002 Thailand .,Institute of Nanomaterials Research and Innovation for Energy (IN-RIE), NANOTEC-KKU RNN on Nanomaterials Research and Innovation for Energy, Khon Kaen University Khon Kaen 40002 Thailand
| | - Jedsada Manyam
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA) Pathum Thani 12120 Thailand
| | - Sriprajak Krongsuk
- Giant Dielectric and Computational Design Research Group (GD-CDR), Department of Physics, Faculty of Science, Khon Kaen University Khon Kaen 40002 Thailand .,Institute of Nanomaterials Research and Innovation for Energy (IN-RIE), NANOTEC-KKU RNN on Nanomaterials Research and Innovation for Energy, Khon Kaen University Khon Kaen 40002 Thailand
| | - Prasit Thongbai
- Giant Dielectric and Computational Design Research Group (GD-CDR), Department of Physics, Faculty of Science, Khon Kaen University Khon Kaen 40002 Thailand .,Institute of Nanomaterials Research and Innovation for Energy (IN-RIE), NANOTEC-KKU RNN on Nanomaterials Research and Innovation for Energy, Khon Kaen University Khon Kaen 40002 Thailand
| | - Pornjuk Srepusharawoot
- Giant Dielectric and Computational Design Research Group (GD-CDR), Department of Physics, Faculty of Science, Khon Kaen University Khon Kaen 40002 Thailand .,Institute of Nanomaterials Research and Innovation for Energy (IN-RIE), NANOTEC-KKU RNN on Nanomaterials Research and Innovation for Energy, Khon Kaen University Khon Kaen 40002 Thailand
| |
Collapse
|
10
|
Baek G, Yang SC. Effect of the Two-Dimensional Magnetostrictive Fillers of CoFe 2O 4-Intercalated Graphene Oxide Sheets in 3-2 Type Poly(vinylidene fluoride)-Based Magnetoelectric Films. Polymers (Basel) 2021; 13:1782. [PMID: 34071659 PMCID: PMC8198746 DOI: 10.3390/polym13111782] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/26/2021] [Accepted: 05/26/2021] [Indexed: 11/16/2022] Open
Abstract
In the last decade, magnetoelectric (ME) polymer films have been developed by including zero-dimensional or one-dimensional magnetostrictive fillers in a piezoelectric polymer matrix. Existing reports on ME polymer films reveal that the shape of the magnetostrictive fillers is a critical determinant of the polymeric phase conformation, strain transfer between the piezoelectric and magnetostrictive phases, and dipole alignment in the films. In this study, to investigate the effect of two-dimensional (2D) magnetostrictive fillers on piezoelectric, magnetic, and magnetoelectric responses, 3-2 type ME films were prepared using CoFe2O4-intercalated graphene oxide (CFO-i-GO) fillers and poly(vinylidene fluoride) (PVDF) polymers. The 2D fillers of CFO-i-GO were hydrothermally synthesized by CFO intercalation into the interlayers of GO sheets with different lateral sizes, which were controlled by ultrasonication treatment. It was found that the large-lateral-size GO (LGO), medium-lateral-size GO (MGO), and small-lateral-size GO (SGO) fillers in the PVDF-based ME films exhibited a lateral size effect on CFO intercalation, polymeric phase conformation, dipole alignment, and magnetoelectric responses. A maximum ME coefficient (αME) of 3.0 mV/cm∙Oe was achieved with a strong linearity (r2) of 0.9992 at an off-resonance frequency (f) of 1 kHz and applied direct current (dc) magnetic field (Hdc) of ± 1000 Oe. The 3-2 type polymer-based ME films with reliable ME responses have potential for use in high-feasibility ME devices for biomedical sensing applications.
Collapse
Affiliation(s)
| | - Su-Chul Yang
- Department of Chemical Engineering (BK21 FOUR Graduate Program), Dong-A University, Busan 49315, Korea;
| |
Collapse
|