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Persano L, Camposeo A, Matino F, Wang R, Natarajan T, Li Q, Pan M, Su Y, Kar-Narayan S, Auricchio F, Scalet G, Bowen C, Wang X, Pisignano D. Advanced Materials for Energy Harvesting and Soft Robotics: Emerging Frontiers to Enhance Piezoelectric Performance and Functionality. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2405363. [PMID: 39291876 DOI: 10.1002/adma.202405363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 07/24/2024] [Indexed: 09/19/2024]
Abstract
Piezoelectric energy harvesting captures mechanical energy from a number of sources, such as vibrations, the movement of objects and bodies, impact events, and fluid flow to generate electric power. Such power can be employed to support wireless communication, electronic components, ocean monitoring, tissue engineering, and biomedical devices. A variety of self-powered piezoelectric sensors, transducers, and actuators have been produced for these applications, however approaches to enhance the piezoelectric properties of materials to increase device performance remain a challenging frontier of materials research. In this regard, the intrinsic polarization and properties of materials can be designed or deliberately engineered to enhance the piezo-generated power. This review provides insights into the mechanisms of piezoelectricity in advanced materials, including perovskites, active polymers, and natural biomaterials, with a focus on the chemical and physical strategies employed to enhance the piezo-response and facilitate their integration into complex electronic systems. Applications in energy harvesting and soft robotics are overviewed by highlighting the primary performance figures of merits, the actuation mechanisms, and relevant applications. Key breakthroughs and valuable strategies to further improve both materials and device performance are discussed, together with a critical assessment of the requirements of next-generation piezoelectric systems, and future scientific and technological solutions.
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Affiliation(s)
- Luana Persano
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Pisa, I-56127, Italy
| | - Andrea Camposeo
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Pisa, I-56127, Italy
| | - Francesca Matino
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Pisa, I-56127, Italy
| | - Ruoxing Wang
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, 53707, USA
| | - Thiyagarajan Natarajan
- Department of Materials Science, University of Cambridge, 27 Charles Babbage Road, Cambridge, CB3 0FS, UK
| | - Qinlan Li
- State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100190, China
- School of Engineering Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Min Pan
- Department of Mechanical Engineering, University of Bath, Bath, BA2 7AY, UK
| | - Yewang Su
- State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100190, China
- School of Engineering Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Sohini Kar-Narayan
- Department of Materials Science, University of Cambridge, 27 Charles Babbage Road, Cambridge, CB3 0FS, UK
| | - Ferdinando Auricchio
- Department of Civil Engineering and Architecture, University of Pavia, via Ferrata 3, Pavia, I-27100, Italy
| | - Giulia Scalet
- Department of Civil Engineering and Architecture, University of Pavia, via Ferrata 3, Pavia, I-27100, Italy
| | - Chris Bowen
- Department of Mechanical Engineering, University of Bath, Bath, BA2 7AY, UK
| | - Xudong Wang
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, 53707, USA
| | - Dario Pisignano
- Dipartimento di Fisica "E. Fermi", Università di Pisa, Largo B. Pontecorvo 3, Pisa, I-56127, Italy
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Li B, Xie Z, Liu H, Tang L, Chen K. A Review of Ultrathin Piezoelectric Films. MATERIALS (BASEL, SWITZERLAND) 2023; 16:3107. [PMID: 37109944 PMCID: PMC10144961 DOI: 10.3390/ma16083107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/11/2023] [Accepted: 04/13/2023] [Indexed: 06/19/2023]
Abstract
Due to their high electromechanical coupling and energy density properties, ultrathin piezoelectric films have recently been intensively studied as key materials for the construction of miniaturized energy transducers, and in this paper we summarize the research progress. At the nanoscale, even a few atomic layers, ultrathin piezoelectric films have prominent shape anisotropic polarization, that is, in-plane polarization and out-of-plane polarization. In this review, we first introduce the in-plane and out-of-plane polarization mechanism, and then summarize the main ultrathin piezoelectric films studied at present. Secondly, we take perovskite, transition metal dichalcogenides, and Janus layers as examples to elaborate the existing scientific and engineering problems in the research of polarization, and their possible solutions. Finally, the application prospect of ultrathin piezoelectric films in miniaturized energy converters is summarized.
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Ju M, Dou Z, Li JW, Qiu X, Shen B, Zhang D, Yao FZ, Gong W, Wang K. Piezoelectric Materials and Sensors for Structural Health Monitoring: Fundamental Aspects, Current Status, and Future Perspectives. SENSORS (BASEL, SWITZERLAND) 2023; 23:543. [PMID: 36617146 PMCID: PMC9824551 DOI: 10.3390/s23010543] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/30/2022] [Accepted: 12/30/2022] [Indexed: 05/14/2023]
Abstract
Structural health monitoring technology can assess the status and integrity of structures in real time by advanced sensors, evaluate the remaining life of structure, and make the maintenance decisions on the structures. Piezoelectric materials, which can yield electrical output in response to mechanical strain/stress, are at the heart of structural health monitoring. Here, we present an overview of the recent progress in piezoelectric materials and sensors for structural health monitoring. The article commences with a brief introduction of the fundamental physical science of piezoelectric effect. Emphases are placed on the piezoelectric materials engineered by various strategies and the applications of piezoelectric sensors for structural health monitoring. Finally, challenges along with opportunities for future research and development of high-performance piezoelectric materials and sensors for structural health monitoring are highlighted.
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Affiliation(s)
- Min Ju
- Research Center for Advanced Functional Ceramics, Wuzhen Laboratory, Jiaxing 314500, China
| | - Zhongshang Dou
- Research Center for Advanced Functional Ceramics, Wuzhen Laboratory, Jiaxing 314500, China
| | - Jia-Wang Li
- Research Center for Advanced Functional Ceramics, Wuzhen Laboratory, Jiaxing 314500, China
| | - Xuting Qiu
- Research Center for Advanced Functional Ceramics, Wuzhen Laboratory, Jiaxing 314500, China
| | - Binglin Shen
- Research Center for Advanced Functional Ceramics, Wuzhen Laboratory, Jiaxing 314500, China
| | - Dawei Zhang
- Research Center for Advanced Functional Ceramics, Wuzhen Laboratory, Jiaxing 314500, China
| | - Fang-Zhou Yao
- Research Center for Advanced Functional Ceramics, Wuzhen Laboratory, Jiaxing 314500, China
- Center of Advanced Ceramic Materials and Devices, Yangtze Delta Region Institute of Tsinghua University, Jiaxing 314500, China
| | - Wen Gong
- Research Center for Advanced Functional Ceramics, Wuzhen Laboratory, Jiaxing 314500, China
| | - Ke Wang
- Research Center for Advanced Functional Ceramics, Wuzhen Laboratory, Jiaxing 314500, China
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
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Zhang Y, Zhang H, Chen L, Wang J, Wang J, Li J, Zhao Y, Zhang M, Zhang H. Piezoelectric Polyvinylidene Fluoride Membranes with Self-Powered and Electrified Antifouling Performance in Pressure-Driven Ultrafiltration Processes. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:16271-16280. [PMID: 36239692 DOI: 10.1021/acs.est.2c05359] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Electroactive membranes have the potential to address membrane fouling via electrokinetic phenomena. However, additional energy consumption and complex material design represent chief barriers to achieving sustainable and economically viable antifouling performance. Herein, we present a novel strategy for fabricating a piezoelectric antifouling polyvinylidene fluoride (PVDF) membrane (Pi-UFM) by integrating the ion-dipole interactions (NaCl coagulation bath) and mild poling (in situ electric field) into a one-step phase separation process. This Pi-UFM with an intact porous structure could be self-powered in a typical ultrafiltration (UF) process via the responsivity to pressure stimuli, where the dominant β-PVDF phase and the out-of-plane aligned dipoles were demonstrated to be critical to obtain piezoelectricity. By challenging with different feed solutions, the Pi-UFM achieved enhanced antifouling capacity for organic foulants even with high ionic strength, suggesting that electrostatic repulsion and hydration repulsion were behind the antifouling mechanism. Furthermore, the TMP-dependent output performance of the Pi-UFM in both air and water confirmed its ability for converting ambient mechanical energy to in situ surface potential (ζ), demonstrating that this antifouling performance was a result of the membrane electromechanical transducer actions. Therefore, this study provides useful insight and strategy to enable piezoelectric materials for membrane filtration applications with energy efficiency and extend functionalities.
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Affiliation(s)
- Yang Zhang
- School of Environmental Science and Engineering, State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Haoquan Zhang
- School of Environmental Science and Engineering, State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Lingling Chen
- College of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen 518118, China
| | - Jie Wang
- School of Environmental Science and Engineering, State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Jun Wang
- School of Environmental Science and Engineering, State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Jian Li
- School of Environmental Science and Engineering, State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Yuan Zhao
- School of Environmental Science and Engineering, State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Meng Zhang
- School of Electronic and Information Engineering, Beihang University, Beijing 100191, China
| | - Hongwei Zhang
- School of Environmental Science and Engineering, State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China
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Lee S, Kim D, Lee S, Kim YI, Kum S, Kim SW, Kim Y, Ryu S, Kim M. Ambient Humidity-Induced Phase Separation for Fiber Morphology Engineering toward Piezoelectric Self-Powered Sensing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2105811. [PMID: 35474607 DOI: 10.1002/smll.202105811] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 01/17/2022] [Indexed: 06/14/2023]
Abstract
Electrospun polymeric piezoelectric fibers have a considerable potential for shape-adaptive mechanical energy harvesting and self-powered sensing in biomedical, wearable, and industrial applications. However, their unsatisfactory piezoelectric performance remains an issue to be overcome. While strategies for increasing the crystallinity of electroactive β phases have thus far been the major focus in realizing enhanced piezoelectric performance, tailoring the fiber morphology can also be a promising alternative. Herein, a design strategy that combines the nonsolvent-induced phase separation of a polymer/solvent/water ternary system and electrospinning for fabricating piezoelectric poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE) fibers with surface porosity under ambient humidity is presented. Notably, electrospun P(VDF-TrFE) fibers with higher surface porosity outperform their smooth-surfaced counterparts with a higher β phase content in terms of output voltage and power generation. Theoretical and numerical studies also underpin the contribution of the structural porosity to the harvesting performance, which is attributable to local stress concentration and reduced dielectric constant due to the air in the pores. This porous fiber design can broaden the application prospects of shape-adaptive energy harvesting and self-powered sensing based on piezoelectric polymer fibers with enhanced voltage and power performance, as successfully demonstrated in this work by developing a communication system based on self-powered motion sensing.
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Affiliation(s)
- Sooun Lee
- Korea Research Institute of Standards and Science, Daejeon, 34113, Republic of Korea
| | - Dabin Kim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Sangryun Lee
- Department of Mechanical Engineering, University of California, Berkeley, CA, 94720, USA
| | - Yong-Il Kim
- Korea Research Institute of Standards and Science, Daejeon, 34113, Republic of Korea
| | - Sihyeon Kum
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Sang-Woo Kim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Yunseok Kim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Seunghwa Ryu
- Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Miso Kim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
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Huang YJ, Chen YF, Hsiao PH, Lam TN, Ko WC, Luo MY, Chuang WT, Su CJ, Chang JH, Chung CF, Huang EW. In-Situ Synchrotron SAXS and WAXS Investigation on the Deformation of Single and Coaxial Electrospun P(VDF-TrFE)-Based Nanofibers. Int J Mol Sci 2021; 22:12669. [PMID: 34884475 PMCID: PMC8657938 DOI: 10.3390/ijms222312669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/01/2021] [Accepted: 11/18/2021] [Indexed: 11/17/2022] Open
Abstract
Coaxial core/shell electrospun nanofibers consisting of ferroelectric P(VDF-TrFE) and relaxor ferroelectric P(VDF-TrFE-CTFE) are tailor-made with hierarchical structures to modulate their mechanical properties with respect to their constituents. Compared with two single and the other coaxial membranes prepared in the research, the core/shell-TrFE/CTFE membrane shows a more prominent mechanical anisotropy between revolving direction (RD) and cross direction (CD) associated with improved resistance to tensile stress for the crystallite phase stability and good strength-ductility balance. This is due to the better degree of core/shell-TrFE-CTFE nanofiber alignment and the crystalline/amorphous ratio. The coupling between terpolymer P(VDF-TrFE-CTFE) and copolymer P(VDF-TrFE) is responsible for phase stabilization, comparing the core/shell-TrFE/CTFE with the pristine terpolymer. Moreover, an impressive collective deformation mechanism of a two-length scale in the core/shell composite structure is found. We apply in-situ synchrotron X-ray to resolve the two-length scale simultaneously by using the small-angle X-ray scattering to characterize the nanofibers and the wide-angle X-ray diffraction to identify the phase transformations. Our findings may serve as guidelines for the fabrication of the electrospun nanofibers used as membranes-based electroactive polymers.
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Affiliation(s)
- Yi-Jen Huang
- Department of Fiber and Composite Materials, Feng Chia University, Taichung 40724, Taiwan;
| | - Yi-Fan Chen
- Department of Chemical and Materials Engineering, National Central University, Taoyuan 32001, Taiwan
| | - Po-Han Hsiao
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan; (P.-H.H.); (M.-Y.L.); (E.-W.H.)
| | - Tu-Ngoc Lam
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan; (P.-H.H.); (M.-Y.L.); (E.-W.H.)
- Department of Physics, College of Education, Can Tho University, Can Tho City 900000, Vietnam
| | - Wen-Ching Ko
- Central Region Campus, Industrial Technology Research Institute, Nantou 54041, Taiwan;
| | - Mao-Yuan Luo
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan; (P.-H.H.); (M.-Y.L.); (E.-W.H.)
| | - Wei-Tsung Chuang
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan; (W.-T.C.); (C.-J.S.)
| | - Chun-Jen Su
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan; (W.-T.C.); (C.-J.S.)
| | - Jen-Hao Chang
- Department of Fiber and Composite Materials, Feng Chia University, Taichung 40724, Taiwan;
| | - Cho Fan Chung
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong 999077, China;
| | - E-Wen Huang
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan; (P.-H.H.); (M.-Y.L.); (E.-W.H.)
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He S, Guo M, Dan Z, Lan S, Ren W, Zhou L, Wang Y, Liang Y, Zheng Y, Pan J, Shen Y. Large-area atomic-smooth polyvinylidene fluoride Langmuir-Blodgett film exhibiting significantly improved ferroelectric and piezoelectric responses. Sci Bull (Beijing) 2021; 66:1080-1090. [PMID: 36654342 DOI: 10.1016/j.scib.2021.02.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 12/16/2020] [Accepted: 01/21/2021] [Indexed: 01/20/2023]
Abstract
Large roughness and structure disorder in ferroelectric ultrathin Langmuir-Blodgett (LB) film results in severe space scatter in electrical, ferroelectric and piezoelectric characteristics, thus limiting the nanoscale research and reliability of nano-devices. However, no effective method aiming at large-area uniform organic ferroelectric LB film has ever been reported to date. Herein, we present a facile hot-pressing strategy to prepare relatively large-area poly(vinylidene fluoride) (PVDF) LB film with ultra-smooth surface root mean square (RMS) roughness is 0.3 nm in a 30 μm × 30 μm area comparable to that of metal substrate, which maximized the potential of LB technique to control thickness distribution. More importantly, compared with traditionally annealed LB film, the hot-pressed LB film manifests significantly improved structure uniformity, less fluctuation in ferroelectric characteristics and higher dielectric and piezoelectric responses, owing to the uniform dipole orientation and higher crystalline quality. Besides, different surface charge relaxation behaviors are investigated and the underlying mechanisms are explained in the light of the interplay of surface charge and polarization charge in the case of nanoscale non-uniform switching. We believe that our work not only presents a novel strategy to endow PVDF LB film with unprecedented reliability and improved performance as a competitive candidate for future ferroelectric tunnel junctions (FTJs) and nano electro mechanical systems (NEMS), but also reveals an attracting coupling effect between the surface potential distribution and nanoscale non-uniform switching behavior, which is crucial for the understanding of local transport characterization modulated by band structure, bit signal stability for data-storage application and the related surface charge research, such as charge gradient microscopy (CGM) based on the collection of surface charge on the biased ferroelectric domains.
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Affiliation(s)
- Shan He
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Mengfan Guo
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Zhenkang Dan
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Shun Lan
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Weibin Ren
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Le Zhou
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Yue Wang
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Yuhan Liang
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Yunpeng Zheng
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Jiayu Pan
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Yang Shen
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.
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Rehman Sagar RU, Zhang M, Wang X, Shabbir B, Stadler FJ. Facile magnetoresistance adjustment of graphene foam for magnetic sensor applications through microstructure tailoring. NANO MATERIALS SCIENCE 2020. [DOI: 10.1016/j.nanoms.2020.01.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Murtaza M, Hussain N, Sen L, Wu H. Replacement reaction-assisted synthesis of silver nanoparticles by jet for conductive ink. NANOTECHNOLOGY 2020; 31:115301. [PMID: 31791036 DOI: 10.1088/1361-6528/ab5dfd] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Synthesis of silver (Ag) nanoparticles with controllable morphology and with high purity remains challenging. In this work, single crystalline Ag nanoparticles with uniform morphology and high purity are successfully synthesized based on the replacement reaction between aqueous Ag nitrate (AgNO3) and solid copper (Cu) via jet. We further demonstrate that the developed jet method is facile and morphology-controllable. It is believed that diffusion limited aggregation and oriented attachment mechanisms are responsible for the formation of Ag nanostructures. The synthesized nanoparticles were characterized by different techniques. Finally, the Ag nanoparticles are successfully applied to prepare the conductive ink for flexible electronics and wearable equipment. Furthermore, the conductivity, flexibility and stability of the conductive material are measured. The conductive pattern exhibits lowest resistivity of 6.7 μΩ cm, showing the good conductivity of the prepared conductive material. In addition, the prepared conductive material is flexible in nature and exhibits stability over a long period.
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Affiliation(s)
- Muhammad Murtaza
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
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Fu J, Hou Y, Zheng M, Zhu M. Flexible Piezoelectric Energy Harvester with Extremely High Power Generation Capability by Sandwich Structure Design Strategy. ACS APPLIED MATERIALS & INTERFACES 2020; 12:9766-9774. [PMID: 32013391 DOI: 10.1021/acsami.9b21201] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In order to achieve a high-performance flexible piezoelectric energy harvester (FPEH), a unique sandwich structure, that is, a PVDF film filled with FeTiNbO6 (FTN) semiconductor particles as an intermediate layer and a pure PVDF film as an upper and lower barrier layer, has been designed, and the corresponding PVDF-FTN/PVDFx-PVDF (P-FTNx-P) compact composite has been prepared by hot-pressing technology. The special sandwich structure combined with the introduction of FTN particles is beneficial to enhance the interfacial polarization and the content of the electroactive phase in PVDF. Together with the maximum piezoelectric voltage coefficient and the moderate Young's modulus, the P-FTN15%-P FPEH exhibited the optimal energy-harvesting performance with a high power density of 110 μW/cm3 and a large charge density of 75 μC/m2 in cantilever mode. The outstanding design in this work is expected to provide a new way for the development of high-performance FPEH materials.
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Affiliation(s)
- Jing Fu
- Key Laboratory of Advanced Functional Materials, Education Ministry of China, College of Materials Science and Engineering , Beijing University of Technology , Beijing 100124 , China
| | - Yudong Hou
- Key Laboratory of Advanced Functional Materials, Education Ministry of China, College of Materials Science and Engineering , Beijing University of Technology , Beijing 100124 , China
| | - Mupeng Zheng
- Key Laboratory of Advanced Functional Materials, Education Ministry of China, College of Materials Science and Engineering , Beijing University of Technology , Beijing 100124 , China
| | - Mankang Zhu
- Key Laboratory of Advanced Functional Materials, Education Ministry of China, College of Materials Science and Engineering , Beijing University of Technology , Beijing 100124 , China
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