Article
Chemistry, Multidisciplinary
Mirae Kim, Cholong Choi, Jin Pyo Lee, Jiyun Kim, Chaenyung Cha
Summary: This study presents a highly efficient and comprehensive strategy for engineering high-performance triboelectric nanogenerators (TENGs) using multifunctional polysuccinimide (PSI). By chemically modifying and physico-mechanically modifying PSI, the researchers were able to control the triboelectric polarities and enhance structural durability. They also conjugated PSI with compounds containing opposite charged groups, resulting in nanofibrous films with highly enhanced and variable triboelectric properties. Additionally, the PSI nanofibers were processed into alginate aerogel to enhance mechanical toughness and biocompatibility.
Article
Multidisciplinary Sciences
Jia-Han Zhang, Zhengtong Li, Juan Xu, Jiean Li, Ke Yan, Wen Cheng, Ming Xin, Tangsong Zhu, Jinhua Du, Sixuan Chen, Xiaoming An, Zhou Zhou, Luyao Cheng, Shu Ying, Jing Zhang, Xingxun Gao, Qiuhong Zhang, Xudong Jia, Yi Shi, Lijia Pan
Summary: This study develops versatile electrospun micropyramid arrays (EMPAs) combined with ultrathin, ultralight, gas-permeable structures through a self-assembly technology. The designable self-assembly allows optimization of EMPAs for various on-skin devices, such as daytime radiative cooling, pressure sensing, and bioenergy harvesting. EMPAs also enable ultraweak fingertip pulse detection and reliable biomechanical energy harvesting.
NATURE COMMUNICATIONS
(2022)
Review
Chemistry, Physical
Yi Li, Song Xiao, Yi Luo, Shuangshuang Tian, Ju Tang, Xiaoxing Zhang, Jiaqing Xiong
Summary: Electrospun nanofiber is highly beneficial in various applications, specifically in distributed energy management, wearables, and bio-interface electronics. This article provides a comprehensive review of the latest progress in electrospun nanofiber-based triboelectric active layers and functional conductors, highlighting their advantages and potential challenges.
Article
Chemistry, Multidisciplinary
Jiaheng Zhou, Chunhao Lu, Danquan Lan, Yiyi Zhang, Yiquan Lin, Lingyu Wan, Wenchang Wei, Yuwang Liang, Dongxin Guo, Yansong Liu, Wenyao Yu
Summary: Scientists have been facing obstacles in improving the performances of dielectric materials for triboelectric nanogenerators. A new type of sandwich-shaped nanocomposite film was designed to increase the surface charge density of the triboelectric nanogenerator (TENG). By modifying polyimide (PI) films with nanomaterials, a copper calcium titanate/polyimide (CCTO/PI) storage layer was introduced, resulting in a significant increase in the electrical output performance of the TENG electrode. This study presents a novel strategy for optimizing dielectric materials and has great potential for the future development of high output-performance TENGs.
Article
Chemistry, Multidisciplinary
Jing Yin, Jingcheng Li, Seeram Ramakrishna, Lan Xu
Summary: To overcome the limitations of traditional batteries in wearable electronics, researchers have developed self-powered wearable electronics. By preparing hybrid-structured nanofiber membranes, the output performance and durability of triboelectric nanogenerators (TENGs) used in wearable electronics can be effectively improved. The addition of polylactic acid/chitosan/aloin porous nanofiber membranes as positive friction layers expands the applications of TENGs.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Sontyana Adonijah Graham, Harishkumarreddy Patnam, Punnarao Manchi, Mandar Vasant Paranjape, Anand Kurakula, Jae Su Yu
Summary: This study presents the fabrication of biocompatible triboelectric fibrous films using electmspinning technique for the application of triboelectric energy harvesting and sensing. The films showed good biocompatibility and optimized electrical output performance. The proposed TEHS devices are lightweight, flexible, and cost-effective, with a quick response time, making them highly competitive in healthcare monitoring and portable electronics.
Article
Chemistry, Multidisciplinary
Zhaozheng Wang, Zhi Zhang, Yunkang Chen, Likun Gong, Sicheng Dong, Han Zhou, Yuan Lin, Yi Lv, Guoxu Liu, Chi Zhang
Summary: This research proposes a semiconductor DC triboelectric nanogenerator (SDC-TENG) using gallium nitride/silicon (GaN/Si) heterojunction, which has ultrahigh voltage and power density. The SDC-TENG can maintain high output voltage at different speeds, has great durability, and performs significantly better than traditional polymer TENGs.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Review
Chemistry, Physical
Xiaohan Ge, Nan Hu, Fujie Yan, Yi Wang
Summary: Since 2012, the triboelectric nanogenerator (TENG) has become an important technology for renewable energy collection and utilization in wearable electronic devices, self-powered systems, and human-computer interfaces. Electrospun fibers, with their uniformity, porosity, and surface area, provide a new option for the triboelectric layer of TENG, improving its effectiveness and wearability. This review focuses on the structures and mechanisms of TENGs, the preparation and factors influencing electrospun fibers, the advantages of using them in TENGs, and their applications in various fields. The use of electrospun nanofibers mixed with 2D nanomaterials to enhance the performance of TENGs is also discussed.
Article
Chemistry, Multidisciplinary
Li-Na Zhou, Jun-Peng Wu, Wei-Zhi Song, Xiao-Xiong Wang, Ning Wang, Miao Yu, Zhi-Yong Fan, Seeram Ramakrishna, Yun-Ze Long
Summary: Triboelectric nanogenerators (TENGs) efficiently harvest and store energy from the surrounding environment to power smart portable electronics continuously; the design of a new grating TENG with a refined structure and modified contact area can achieve high output power density.
Review
Chemistry, Physical
Gaurav Khandelwal, Nirmal Prashanth Maria Joseph Raj, Sang-Jae Kim
Summary: Triboelectric nanogenerators (TENGs) have become a popular choice as energy harvesters worldwide, known for their lightweight, low cost, high output, and wide range of applications. The performance of TENGs relies heavily on materials, with significant progress being made in exploring novel materials to enhance output. Future prospects and challenges in material development for TENGs are discussed in this review.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Changyang Li, Peng Wang, Dun Zhang
Summary: This study presents a self-healing triboelectric nanogenerator (TENG) fabricated using self-healing polyimide (PI) for energy harvesting and motion sensing. The PI-based TENGs exhibited excellent intrinsic self-healing properties, attributed to dynamic disulfide bond exchange and flexible PDMS fragments in the PI backbone. The output performance of the TENG was significantly improved due to CF3 electron-absorbing groups and siloxane fragments in the PI backbone. Practical applications of self-healing PI-based TENGs, including energy harvesting for commercial electronic devices and joint motion sensing, were demonstrated.
Article
Chemistry, Physical
Jia Meng, Zi Hao Guo, Chongxiang Pan, Luyao Wang, Caiyun Chang, Longwei Li, Xiong Pu, Zhong Lin Wang
Summary: A flexible textile-based DC generator utilizing the tribovoltaic effect has been developed, which can efficiently harvest mechanical energies to power self-powered wearable electronics. The generator is based on the dynamic Schottky junction between an Al slider and a poly(3,4-ethylenedioxythiophene)-coated textile, providing a voltage output of approximately 0.45-0.70 V. Connecting multiple generators in series can increase the voltage and current output, demonstrating the potential for continuous power supply to electronic devices without the need for conditioning circuits.
ACS ENERGY LETTERS
(2021)
Review
Chemistry, Multidisciplinary
Guoli Du, Jinlong Wang, Yanhua Liu, Jinxia Yuan, Tao Liu, Chenchen Cai, Bin Luo, Siqiyuan Zhu, Zhiting Wei, Shuangfei Wang, Shuangxi Nie
Summary: In this review, the fabrication methods and performance enhancements of cellulosic triboelectric materials via dielectric modulation are comprehensively discussed. The advantages and progress in cellulosic materials are highlighted, and the challenges and future opportunities for cellulose dielectric modulation are summarized.
Review
Chemistry, Physical
Qingshan Duan, Weiqing Peng, Juanxia He, Zhijun Zhang, Zecheng Wu, Ye Zhang, Shuangfei Wang, Shuangxi Nie
Summary: This article systematically summarizes the structural modification methods based on electrospinning to improve the triboelectric properties and the latest research progress in triboelectric nanogenerators (TENGs). It highlights the preparation methods and design trends of nanofibers, microspheres, hierarchical structures, and doping nanomaterials, while considering the factors influencing the formation and properties of triboelectric materials. Furthermore, it elaborates on the latest progress in the applications of TENGs and discusses the challenges in the development of triboelectric materials, providing guidance for researchers in the large-scale application of TENGs.
Article
Chemistry, Multidisciplinary
Huayu Xu, Juan Tao, Yue Liu, Yepei Mo, Rongrong Bao, Caofeng Pan
Summary: An all-fibrous large-area tailorable triboelectric nanogenerator prepared with one-step solution blow spinning technology possesses good tailorability, breathability, hydrophobicity, and washability, with preferable output and sensing property.