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Cui J, Du L, Meng Z, Gao J, Tan A, Jin X, Zhu X. Ingenious Structure Engineering to Enhance Piezoelectricity in Poly(vinylidene fluoride) for Biomedical Applications. Biomacromolecules 2024. [PMID: 39129463 DOI: 10.1021/acs.biomac.4c00659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/13/2024]
Abstract
The future development of wearable/implantable sensing and medical devices relies on substrates with excellent flexibility, stability, biocompatibility, and self-powered capabilities. Enhancing the energy efficiency and convenience is crucial, and converting external mechanical energy into electrical energy is a promising strategy for long-term advancement. Poly(vinylidene fluoride) (PVDF), known for its piezoelectricity, is an outstanding representative of an electroactive polymer. Ingeniously designed PVDF-based polymers have been fabricated as piezoelectric devices for various applications. Notably, the piezoelectric performance of PVDF-based platforms is determined by their structural characteristics at different scales. This Review highlights how researchers can strategically engineer structures on microscopic, mesoscopic, and macroscopic scales. We discuss advanced research on PVDF-based piezoelectric platforms with diverse structural designs in biomedical sensing, disease diagnosis, and treatment. Ultimately, we try to give perspectives for future development trends of PVDF-based piezoelectric platforms in biomedicine, providing valuable insights for further research.
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Affiliation(s)
- Jiwei Cui
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
- Joint Research and Development Center of Fluorine Materials of Shanghai Jiao Tong University and Huayi 3F, 1391 Humin Road, Shanghai 200240, People's Republic of China
| | - Lijun Du
- Shanghai Huayi 3F New Materials Co., Ltd., No. 560 Xujiahui Road, Shanghai 200025, People's Republic of China
- Joint Research and Development Center of Fluorine Materials of Shanghai Jiao Tong University and Huayi 3F, 1391 Humin Road, Shanghai 200240, People's Republic of China
| | - Zhiheng Meng
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
| | - Jiayin Gao
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
| | - Anning Tan
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
| | - Xin Jin
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
- Joint Research and Development Center of Fluorine Materials of Shanghai Jiao Tong University and Huayi 3F, 1391 Humin Road, Shanghai 200240, People's Republic of China
| | - Xinyuan Zhu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
- Joint Research and Development Center of Fluorine Materials of Shanghai Jiao Tong University and Huayi 3F, 1391 Humin Road, Shanghai 200240, People's Republic of China
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Gu Q, Lu X, Chen C, Wang X, Kang F, Li YY, Xu Q, Lu J, Han Y, Qin W, Zhang Q. High-Performance Piezoelectric Two-Dimensional Covalent Organic Frameworks. Angew Chem Int Ed Engl 2024:e202409708. [PMID: 38973371 DOI: 10.1002/anie.202409708] [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: 05/22/2024] [Revised: 06/27/2024] [Accepted: 07/07/2024] [Indexed: 07/09/2024]
Abstract
Organic piezoelectric nanogenerators (PENGs) are attractive in harvesting mechanical energy for various self-powering systems. However, their practical applications are severely restricted by their low output open circuit voltage. To address this issue, herein, we prepared two two-dimensional (2D) covalent organic frameworks (COFs, CityU-13 and CityU-14), functionalized with fluorinated alkyl chains for PENGs. The piezoelectricity of both COFs was evidenced by switchable polarization, characteristic butterfly amplitude loops, phase hysteresis loops, conspicuous surface potentials and high piezoelectric coefficient value (d33). The PENGs fabricated with COFs displayed highest output open circuit voltages (60 V for CityU-13 and 50 V for CityU-14) and delivered satisfactory short circuit current with an excellent stability of over 600 seconds. The superior open circuit voltages of CityU-13 and CityU-14 rank in top 1 and 2 among all reported organic materials-based PENGs.
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Affiliation(s)
- Qianfeng Gu
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue 83, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Xiangqian Lu
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, 27 Shanda South Road, Jinan, Shandong, 250100, P. R. China
| | - Cailing Chen
- Advanced Membranes and Porous Materials (AMPM) Center, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Mecca Province, 23955-6900, Saudi Arabia
| | - Xiang Wang
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue 83, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Fangyuan Kang
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue 83, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Yang Yang Li
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue 83, Kowloon, Hong Kong SAR, 999077, P. R. China
| | - Qingfeng Xu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu, 215123, P.R. China
| | - Jianmei Lu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu, 215123, P.R. China
| | - Yu Han
- School of Emergent Soft Matter & Center for Electron Microscopy, South China University of Technology, 777 Xingye Avenue East, Panyu District, Guangzhou, 511442, P. R. China
| | - Wei Qin
- School of Physics, State Key Laboratory of Crystal Materials, Shandong University, 27 Shanda South Road, Jinan, Shandong, 250100, P. R. China
| | - Qichun Zhang
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue 83, Kowloon, Hong Kong SAR, 999077, P. R. China
- Department of Chemistry, Center of Super-Diamond and Advanced Films (COSDAF) & Hong Kong Institute of Clean Energy, City University of Hong Kong, Tat Chee Avenue 83, Kowloon, Hong Kong SAR, 999077, P. R. China
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Kim D, Jeong H, Pyo G, Heo SJ, Baik S, Kim S, Choi HS, Kwon H, Jang JE. Low-Temperature Nanosecond Laser Process of HZO-IGZO FeFETs toward Monolithic 3D System on Chip Integration. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2401250. [PMID: 38741378 PMCID: PMC11267387 DOI: 10.1002/advs.202401250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/12/2024] [Indexed: 05/16/2024]
Abstract
Ferroelectric field-effect transistors (FeFETs) are increasingly important for in-memory computing and monolithic 3D (M3D) integration in system-on-chip (SoC) applications. However, the high-temperature processing required by most ferroelectric memories can lead to thermal damage to the underlying device layers, which poses significant physical limitations for 3D integration processes. To solve this problem, the study proposes using a nanosecond pulsed laser for selective annealing of hafnia-based FeFETs, enabling precise control of heat penetration depth within thin films. Sufficient thermal energy is delivered to the IGZO oxide channel and HZO ferroelectric gate oxide without causing thermal damage to the bottom layer, which has a low transition temperature (<250 °C). Using optimized laser conditions, a fast response time (<1 µs) and excellent stability (cycle > 106, retention > 106 s) are achieved in the ferroelectric HZO film. The resulting FeFET exhibited a wide memory window (>1.7 V) with a high on/off ratio (>105). In addition, moderate ferroelectric properties (2·Pr of 14.7 µC cm-2) and pattern recognition rate-based linearity (potentiation: 1.13, depression: 1.6) are obtained. These results demonstrate compatibility in HZO FeFETs by specific laser annealing control and thin-film layer design for various structures (3D integrated, flexible) with neuromorphic applications.
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Affiliation(s)
- Dongsu Kim
- Department of Electrical Engineering and Computer ScienceDaegu Gyeongbuk Institute of Science & Technology (DGIST)Daegu42988South Korea
| | - Heejae Jeong
- Department of Electrical Engineering and Computer ScienceDaegu Gyeongbuk Institute of Science & Technology (DGIST)Daegu42988South Korea
| | - Goeun Pyo
- Department of Electrical Engineering and Computer ScienceDaegu Gyeongbuk Institute of Science & Technology (DGIST)Daegu42988South Korea
| | - Su Jin Heo
- Department of Electrical Engineering and Computer ScienceDaegu Gyeongbuk Institute of Science & Technology (DGIST)Daegu42988South Korea
- Department of EngineeringInstitute for ManufacturingUniversity of CambridgeCambridgeCB3 0FSUnited Kingdom
| | - Seunghun Baik
- Department of Electrical Engineering and Computer ScienceDaegu Gyeongbuk Institute of Science & Technology (DGIST)Daegu42988South Korea
| | - Seonhyoung Kim
- Department of Robotics and Mechatronics EngineeringDaegu Gyeongbuk Institute of Science & Technology (DGIST)Daegu42988South Korea
| | - Hong Soo Choi
- Department of Robotics and Mechatronics EngineeringDaegu Gyeongbuk Institute of Science & Technology (DGIST)Daegu42988South Korea
| | - Hyuk‐Jun Kwon
- Department of Electrical Engineering and Computer ScienceDaegu Gyeongbuk Institute of Science & Technology (DGIST)Daegu42988South Korea
| | - Jae Eun Jang
- Department of Electrical Engineering and Computer ScienceDaegu Gyeongbuk Institute of Science & Technology (DGIST)Daegu42988South Korea
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Huang H, Wu RS, Lin M, Xu S. Emerging Wearable Ultrasound Technology. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 2024; 71:713-729. [PMID: 37878424 PMCID: PMC11263711 DOI: 10.1109/tuffc.2023.3327143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Abstract
This perspective article provides a brief overview on materials, fabrications, beamforming, and applications for wearable ultrasound devices, a rapidly growing field with versatile implications. Recent developments in miniaturization and soft electronics have significantly advanced wearable ultrasound devices. Such devices offer distinctive advantages over traditional ultrasound probes, including prolonged usability and operator independence, and have demonstrated their effectiveness in continuous monitoring, noninvasive therapies, and advanced human-machine interfaces. Wearable ultrasound devices can be classified into three main categories: rigid, flexible, and stretchable, each having distinctive properties and fabrication strategies. Key unique strategies in device design, packaging, and beamforming for each type of wearable ultrasound devices are reviewed. Furthermore, we highlight the latest applications enabled by wearable ultrasound technology in various areas. This article concludes by discussing the outstanding challenges within the field and outlines potential pathways for future advancements.
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Jiao P, Wang ZL, Alavi AH. Maximizing Triboelectric Nanogenerators by Physics-Informed AI Inverse Design. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2308505. [PMID: 38062801 DOI: 10.1002/adma.202308505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/11/2023] [Indexed: 02/02/2024]
Abstract
Triboelectric nanogenerators offer an environmentally friendly approach to harvesting energy from mechanical excitations. This capability has made them widely sought-after as an efficient, renewable, and sustainable energy source, with the potential to decrease reliance on traditional fossil fuels. However, developing triboelectric nanogenerators with specific output remains a challenge mainly due to the uncertainties associated with their complex designs for real-life applications. Artificial intelligence-enabled inverse design is a powerful tool to realize performance-oriented triboelectric nanogenerators. This is an emerging scientific direction that can address the concerns about the design and optimization of triboelectric nanogenerators leading to a next generation nanogenerator systems. This perspective paper aims at reviewing the principal analysis of triboelectricity, summarizing the current challenges of designing and optimizing triboelectric nanogenerators, and highlighting the physics-informed inverse design strategies to develop triboelectric nanogenerators. Strategic inverse design is particularly discussed in the contexts of expanding the four-mode analytical models by physics-informed artificial intelligence, discovering new conductive and dielectric materials, and optimizing contact interfaces. Various potential development levels of artificial intelligence-enhanced triboelectric nanogenerators are delineated. Finally, the potential of physics-informed artificial intelligence inverse design to propel triboelectric nanogenerators from prototypes to multifunctional intelligent systems for real-life applications is discussed.
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Affiliation(s)
- Pengcheng Jiao
- Ocean College, Zhejiang University, Zhoushan, Zhejiang, 316021, China
| | - Zhong Lin Wang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, China
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
- Yonsei Frontier Lab, Yonsei University, Seoul, 03722, Republic of Korea
| | - Amir H Alavi
- Department of Civil and Environmental Engineering, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, 15261, USA
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Liu J, Zeng S, Zhang M, Xiong J, Gu H, Wang Z, Hu Y, Zhang X, Du Y, Ren L. Giant Piezoelectric Output and Stability Enhancement in Piezopolymer Composites with Liquid Metal Nanofillers. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2304096. [PMID: 37705125 PMCID: PMC10754131 DOI: 10.1002/advs.202304096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Indexed: 09/15/2023]
Abstract
Integrating nanomaterials into the polymer matrix is an effective strategy to optimize the performance of polymer-based piezoelectric devices. Nevertheless, the trade-off between the output enhancement and stability maintenance of piezoelectric composites usually leads to an unsatisfied overall performance for the high-strength operation of devices. Here, by setting liquid metal (LM) nanodroplets as the nanofillers in a poly(vinylidene difluoride) (PVDF) matrix, the as-formed liquid-solid/conductive-dielectric interfaces significantly promote the piezoelectric output and the reliability of this piezoelectric composite. A giant performance improvement featured is obtained with, nearly 1000% boosting on the output voltage (as high as 212 V), 270% increment on the piezoelectric coefficient (d33 ∼51.1 pC N-1 ) and long-term reliability on both structure and output (over 36 000 cycles). The design of a novel heterogenous interface with both mechanical matching and electric coupling can be the new orientation for developing high performance piezoelectric composite-based devices.
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Affiliation(s)
- Jingyan Liu
- Hubei Key Laboratory of Ferro & Piezoelectric Materials and DevicesSchool of MicroelectronicsHubei UniversityWuhan430062P. R. China
| | - Shi Zeng
- Hubei Key Laboratory of Ferro & Piezoelectric Materials and DevicesSchool of MicroelectronicsHubei UniversityWuhan430062P. R. China
| | - Mingrui Zhang
- Hubei Key Laboratory of Ferro & Piezoelectric Materials and DevicesSchool of MicroelectronicsHubei UniversityWuhan430062P. R. China
| | - Juan Xiong
- Hubei Key Laboratory of Ferro & Piezoelectric Materials and DevicesSchool of MicroelectronicsHubei UniversityWuhan430062P. R. China
| | - Haoshuang Gu
- Hubei Key Laboratory of Ferro & Piezoelectric Materials and DevicesSchool of MicroelectronicsHubei UniversityWuhan430062P. R. China
| | - Zhao Wang
- Hubei Key Laboratory of Ferro & Piezoelectric Materials and DevicesSchool of MicroelectronicsHubei UniversityWuhan430062P. R. China
| | - Yongming Hu
- Hubei Key Laboratory of Ferro & Piezoelectric Materials and DevicesSchool of MicroelectronicsHubei UniversityWuhan430062P. R. China
| | - Xianghui Zhang
- Hubei Key Laboratory of Ferro & Piezoelectric Materials and DevicesSchool of MicroelectronicsHubei UniversityWuhan430062P. R. China
| | - Yi Du
- Center of Quantum and Matter Science and School of PhysicsBeihang UniversityBeijing100191P. R. China
| | - Long Ren
- State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingInternational School of Materials Science and EngineeringWuhan University of TechnologyWuhan430070P. R. China
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Zou X, Xue J, Li X, Chan CPY, Li Z, Li P, Yang Z, Lai KWC. High-Fidelity sEMG Signals Recorded by an on-Skin Electrode Based on AgNWs for Hand Gesture Classification Using Machine Learning. ACS APPLIED MATERIALS & INTERFACES 2023; 15:19374-19383. [PMID: 37036803 DOI: 10.1021/acsami.2c21354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
The human forearm is one of the most densely distributed parts of the human body, with the most irregular spatial distribution of muscles. A number of specific forearm muscles control hand motions. Acquiring high-fidelity sEMG signals from human forearm muscles is vital for human-machine interface (HMI) applications based on gesture recognition. Currently, the most commonly used commercial electrodes for detecting sEMG or other electrophysiological signals have a rigid nature without stretchability and cannot maintain conformal contact with the human skin during deformation, and the adhesive hydrogel used in them to reduce skin-electrode impedance may shrink and cause skin inflammation after long-term use. Therefore, developing elastic electrodes with stretchability and biocompatibility for sEMG signal recording is essential for developing HMI. Here, we fabricated a nanocomposite hybrid on-skin electrode by infiltrating silver nanowires (AgNWs), a one-dimensional (1D) nano metal material with conductivity, into polydimethylsiloxane (PDMS), a silicone elastomer with a similar Young's modulus to that of the human skin. The AgNW on-skin electrode has a thickness of 300 μm and low sheet resistance of 0.481 ± 0.014 Ω/sq and can withstand the mechanical strain of up to 54% and maintain a sheet resistance lower than 1 Ω/sq after 1000 dynamic strain cycles. The AgNW on-skin electrode can record high signal-to-noise ratio (SNR) sEMG signals from forearm muscles and can reflect various force levels of muscles by sEMG signals. Besides, four typical hand gestures were recognized by the multichannel AgNW on-skin electrodes with a recognition accuracy of 92.3% using machine learning method. The AgNW on-skin electrode proposed in this study has great potential and promise in various HMI applications that employ sEMG signals as control signals.
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Affiliation(s)
- Xiaoyang Zou
- Department of Biomedical Engineering, Centre for Robotics and Automation, City University of Hong Kong, Hong Kong 999077, China
| | - Jiaqi Xue
- Department of Biomedical Engineering, Centre for Robotics and Automation, City University of Hong Kong, Hong Kong 999077, China
| | - Xiaoting Li
- Department of Biomedical Engineering, Centre for Robotics and Automation, City University of Hong Kong, Hong Kong 999077, China
| | - Colin Pak Yu Chan
- Department of Biomedical Engineering, Centre for Robotics and Automation, City University of Hong Kong, Hong Kong 999077, China
| | - Ziqi Li
- Department of Biomedical Engineering, Centre for Robotics and Automation, City University of Hong Kong, Hong Kong 999077, China
| | - Pengyu Li
- Department of Mechanical and Aerospace Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong 999077, China
- Department of Mechanical Engineering, City University of Hong Kong, Hong Kong 999077, China
| | - Zhengbao Yang
- Department of Mechanical and Aerospace Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong 999077, China
- Department of Mechanical Engineering, City University of Hong Kong, Hong Kong 999077, China
| | - King Wai Chiu Lai
- Department of Biomedical Engineering, Centre for Robotics and Automation, City University of Hong Kong, Hong Kong 999077, China
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