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Meng S, Wang N, Cao X. Built-In Piezoelectric Nanogenerators Promote Sustainable and Flexible Supercapacitors: A Review. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6916. [PMID: 37959515 PMCID: PMC10647822 DOI: 10.3390/ma16216916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 10/22/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023]
Abstract
Energy storage devices such as supercapacitors (SCs), if equipped with built-in energy harvesters such as piezoelectric nanogenerators, will continuously power wearable electronics and become important enablers of the future Internet of Things. As wearable gadgets become flexible, energy items that can be fabricated with greater compliance will be crucial, and designing them with sustainable and flexible strategies for future use will be important. In this review, flexible supercapacitors designed with built-in nanogenerators, mainly piezoelectric nanogenerators, are discussed in terms of their operational principles, device configuration, and material selection, with a focus on their application in flexible wearable electronics. While the structural design and materials selection are highlighted, the current shortcomings and challenges in the emerging field of nanogenerators that can be integrated into flexible supercapacitors are also discussed to make wearable devices more comfortable and sustainable. We hope this work may provide references, future directions, and new perspectives for the development of electrochemical power sources that can charge themselves by harvesting mechanical energy from the ambient environment.
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Affiliation(s)
- Shuchang Meng
- Center for Green Innovation, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China
| | - Ning Wang
- Center for Green Innovation, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China
| | - Xia Cao
- Center for Green Innovation, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, China
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Amanati Manbar H, Hosseini Z, Ghanbari T, Moshksar E, Khodapanah M. Early Thermal Aging Detection in Tin based Perovskite Solar Cell. Heliyon 2022; 8:e11455. [DOI: 10.1016/j.heliyon.2022.e11455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/04/2022] [Accepted: 11/02/2022] [Indexed: 11/13/2022] Open
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Wen Z, Guo H, Wang L. Editorial for Special Issue: Advanced Materials and Technologies in Nanogenerators. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3606. [PMID: 36296794 PMCID: PMC9611542 DOI: 10.3390/nano12203606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
Nanogenerators, based on Maxwell's displacement current as the driving force, have inspired a new and developing field since their invention in 2006 [...].
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Affiliation(s)
- Zhen Wen
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
| | - Hengyu Guo
- Department of Physics, Chongqing University, Chongqing 401331, China
| | - Longfei Wang
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
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Li X, Zhu P, Zhang S, Wang X, Luo X, Leng Z, Zhou H, Pan Z, Mao Y. A Self-Supporting, Conductor-Exposing, Stretchable, Ultrathin, and Recyclable Kirigami-Structured Liquid Metal Paper for Multifunctional E-Skin. ACS NANO 2022; 16:5909-5919. [PMID: 35312286 DOI: 10.1021/acsnano.1c11096] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Electronic skin (E-skin) is a crucial seamless human-machine interface (HMI), holding promise in healthcare monitoring and personal electronics. Liquid metal (LM) has been recognized as an ideal electrode material to fabricate E-skins. However, conventional sealed LM electrodes cannot expose the LM layer for direct contact with the skin resulting in the low performance of electrophysiological monitoring. Furthermore, traditional printed LM electrodes are difficult to transfer or recycle, and fractures easily occur under stretching of the substrate. Here, we report a kind of LM electrode that we call a kirigami-structured LM paper (KLP), which is self-supporting, conductor-exposing, stretchable, ultrathin, and recyclable for multifunctional E-skin. The KLP is fabricated by the kirigami paper cutting art with three types of structures including uniaxial, biaxial, and square spiral. The KLP can act as an E-skin to acquire high-quality electrophysiological signals, such as electroencephalogram (EEG), electrocardiogram (ECG), and electromyogram (EMG). Upon integration with a triboelectric nanogenerator (TENG), the KLP can also operate as a self-powered E-skin. On the basis of the self-powered E-skin, we further developed a smart dialing communication system, which is applied on human skin to call a cellphone. Compared with conventional sealed or printed LM electrodes, the KLP can simultaneously achieve self-supporting, conductor-exposing, stretchable, ultrathin, and recyclable features. Such KLP offers potential for E-skins in healthcare monitoring and intelligent control, as well as smart robots, virtual reality, on-skin personal electronics, etc.
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Affiliation(s)
- Xing Li
- Key Laboratory of Materials Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
| | - Pengcheng Zhu
- Key Laboratory of Materials Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
| | - Shichuan Zhang
- Key Laboratory of Materials Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
| | - Xiangcheng Wang
- Key Laboratory of Materials Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
| | - Xuepeng Luo
- Key Laboratory of Materials Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
| | - Ziwei Leng
- Key Laboratory of Materials Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
| | - Hao Zhou
- Key Laboratory of Materials Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
| | - Zhifeng Pan
- Key Laboratory of Materials Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
| | - Yanchao Mao
- Key Laboratory of Materials Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, China
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Wu Y, Luo Y, Cuthbert TJ, Shokurov AV, Chu PK, Feng S, Menon C. Hydrogels as Soft Ionic Conductors in Flexible and Wearable Triboelectric Nanogenerators. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2106008. [PMID: 35187859 PMCID: PMC9009134 DOI: 10.1002/advs.202106008] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 02/07/2022] [Indexed: 05/12/2023]
Abstract
Flexible triboelectric nanogenerators (TENGs) have attracted increasing interest since their advent in 2012. In comparison with other flexible electrodes, hydrogels possess transparency, stretchability, biocompatibility, and tunable ionic conductivity, which together provide great potential as current collectors in TENGs for wearable applications. The development of hydrogel-based TENGs (H-TENGs) is currently a burgeoning field but research efforts have lagged behind those of other common flexible TENGs. In order to spur research and development of this important area, a comprehensive review that summarizes recent advances and challenges of H-TENGs will be very useful to researchers and engineers in this emerging field. Herein, the advantages and types of hydrogels as soft ionic conductors in TENGs are presented, followed by detailed descriptions of the advanced functions, enhanced output performance, as well as flexible and wearable applications of H-TENGs. Finally, the challenges and prospects of H-TENGs are discussed.
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Affiliation(s)
- Yinghong Wu
- Biomedical and Mobile Health Technology LabDepartment of Health Sciences and TechnologyETH ZurichZurich8008Switzerland
| | - Yang Luo
- Department of PhysicsDepartment of Materials Science and Engineeringand Department of Biomedical EngineeringCity University of Hong KongHong Kong999077China
| | - Tyler J. Cuthbert
- Biomedical and Mobile Health Technology LabDepartment of Health Sciences and TechnologyETH ZurichZurich8008Switzerland
| | - Alexander V. Shokurov
- Biomedical and Mobile Health Technology LabDepartment of Health Sciences and TechnologyETH ZurichZurich8008Switzerland
| | - Paul K. Chu
- Department of PhysicsDepartment of Materials Science and Engineeringand Department of Biomedical EngineeringCity University of Hong KongHong Kong999077China
| | - Shien‐Ping Feng
- Department of Mechanical EngineeringThe University of Hong KongHong Kong999077China
- Department of Advanced Design and Systems EngineeringCity University of Hong KongKowloonHong Kong999077China
| | - Carlo Menon
- Biomedical and Mobile Health Technology LabDepartment of Health Sciences and TechnologyETH ZurichZurich8008Switzerland
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