Article
Chemistry, Physical
Peng Cui, Ying Ge, Xi Yao, Jingjing Wang, Jingjing Zhang, Huan Meng, Lan Liu, Jingsheng Wang, Jie Ju, Gang Cheng, Zuliang Du
Summary: Liquid-solid-based triboelectric nanogenerators (LS-TENG) are new tools for collecting energy from water in nature. Efforts have been made on LS-TENG based on superhydrophobic surfaces, resulting in higher energy output. However, there is a tradeoff between sliding speed and LS contact area.
Review
Physics, Multidisciplinary
Zhong Lin Wang
Summary: The review delves into the mechanisms of contact electrification and the principles of triboelectric nanogenerators, providing a comprehensive overview from basic physics to engineering applications. It discusses the output power, electromagnetic behavior, and current transport equation for TENGs, setting a standard theory for quantifying their performance. Additionally, the review explores the diverse applications of TENGs in harvesting mechanical energy for various sectors including energy science, environmental protection, wearable electronics, medical science, robotics, and artificial intelligence.
REPORTS ON PROGRESS IN PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Shihe Du, Shaoke Fu, Wencong He, Qianying Li, Kaixian Li, Huiyuan Wu, Jian Wang, Chuncai Shan, Qianjin Mu, Chenguo Hu
Summary: This paper proposes a novel ferromagnetic metal particle-based triboelectric nanogenerator (FMP-TENG), which improves the durability of TENG by using the rolling motion of particles instead of planar contact of film, and enhances its electric output by increasing the contact area. In addition, a metal powder mass sensor based on FMP-TENG is designed for dynamic monitoring of powder mass.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Haobin Wang, Shuyi Huang, Haoze Kuang, Chi Zhang, Yulu Liu, Kaihang Zhang, Xinyu Cai, Xiaozhi Wang, Jikui Luo, Zhong Lin Wang
Summary: Triboelectrification between metals, polymers, and semiconductors was investigated, revealing a universal mechanism involving both electrostatic induction and dynamic junction modulation. The outputs of triboelectrification exhibited four current/voltage peaks, two of which were attributed to electrostatic induction effects and determined by surface state densities and electron affinity differences between the materials. The other two peaks were associated with dynamic junction modulation effects and determined by charging exchange between surface states and depletion regions. While metals and polymers showed no modulation of depletion regions, only the peaks induced by electrostatic induction were observable. Semiconductors, on the other hand, exhibited additional peaks induced by junction modulation when in contact with any material type. These findings provide valuable insights for developing high-performance triboelectric nanogenerators.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhen Tang, Shiquan Lin, Zhong Lin Wang
Summary: A contactless method combining electric field and acoustic field is proposed to quantify the charges on a liquid droplet, successfully applied in studying both liquid-solid and liquid-liquid contact electrification effects, with a focus on the behavior of negatively precharged liquid droplets in the liquid-liquid CE.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Kunming Shi, Bin Chai, Haiyang Zou, Zhen Wen, Meng He, Jie Chen, Pingkai Jiang, Xingyi Huang
Summary: This study demonstrates the crucial role of material transfer in adhesive polymers in contact electrification, which boosts charge transfer and the performance of triboelectric nanogenerators (TENGs).
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Tao Liu, Wenfeng Mo, Xuelian Zou, Bin Luo, Song Zhang, Yanhua Liu, Chenchen Cai, Mingchao Chi, Jinlong Wang, Shuangfei Wang, Dengjun Lu, Shuangxi Nie
Summary: This study presents a triboelectric probe capable of sensing sucrose solution concentration, which utilizes the dissolution of sucrose to alter the fluid mechanics characteristics of the solution and enhance its conductivity. The probe achieves efficient sensing of sucrose solution by providing feedback on the sucrose concentration gradient-type sensing electrical signals. This work contributes to the understanding of micro hydrogen bonding and macro performance relationship and provides a promising solution for building sustainable intelligent sensors.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Materials Science, Multidisciplinary
Nannan Wang, Yupeng Liu, Enyi Ye, Zibiao Li, Daoai Wang
Summary: This paper delineates the advanced methods and applications of enhancing the electrical output of TENG and looks forward to the application prospects of TENG in other fields.
MATERIALS RESEARCH LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Haiqi Gao, Mingao Hu, Junfei Ding, Bailu Xia, Guanglu Yuan, Huasheng Sun, Qinghao Xu, Shiyu Zhao, Yawei Jiang, Hong Wu, Ming Yuan, Jiahui Li, Bingxiang Li, Jin Zhao, Dewei Rao, Yannan Xie
Summary: Contact electrification is a universal phenomenon influenced by the work function difference between materials. Experimental results demonstrate that electron transfer occurs significantly in the attractive force region when there is a large work function difference between two contacting materials.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Materials Science, Multidisciplinary
Nan Wang, Xiubo Zhao
Summary: This article systematically introduces the important role of atomic force microscopy (AFM) in studying contact electrification (CE) phenomena, especially in researching the CE mechanism at the nanoscale. In addition, the working mechanism of metal-semiconductor direct current triboelectric nanogenerators based on conductive atomic force microscopy (C-AFM) studies is also introduced. The potential utility and limitations of AFM in future TENG technology development and its improvement direction are analyzed. This review provides an updated overview and understanding of the existing challenges and opportunities, and it is hoped to contribute to the advancement of TENG technologies.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Multidisciplinary
Zhi Zhang, Zhaozheng Wang, Yunkang Chen, Yuan Feng, Sicheng Dong, Han Zhou, Zhong Lin Wang, Chi Zhang
Summary: This study reports a semiconductor direct-current triboelectric nanogenerator (SDC-TENG) based on the tribovoltaic effect, which is capable of ultrahigh-power generation. By using gallium nitride (GaN) and bismuth telluride (Bi2Te3), this SDC-TENG achieves a peak open-circuit voltage of 40 V and a power density approximately 200 times higher than previous generators.
ADVANCED MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Yang Dong, Nannan Wang, Di Yang, Jian Wang, Wenlong Lu, Daoai Wang
Summary: Solid-liquid triboelectric nanogenerators (SL-TENGs) are a new technology that combines contact electrification and electrostatic induction to collect clean energy stored in natural water. They have attracted increasing attention in recent years due to their high energy density, material versatility, and potential for large-scale applications. Matching SL-TENGs with different applications is critical for stable output and long-cycle life.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Songtao Hu, Xijia Ding, Beibei Fan, Chi Zhang, Bo Zhang, Xi Shi, Zhike Peng
Summary: This study reports a solid-liquid triboelectric nanogenerator (TENG) sensing technique for position sensing of inkjet printing. A self-aware array assembled by four single-electrode-mode TENG units can achieve droplet positioning based on the triboelectric output. The open-circuit voltage is considered as the key index to precisely characterize the deposition positioning of jetting droplets.
Article
Thermodynamics
Van-Phung Mai, Tsung-Yu Lee, Ruey-Jen Yang
Summary: This study fabricated different types of droplet-triboelectric nanogenerators and investigated the effect of electrowetting-assisted charge injection on their performance. The results showed that composite materials doped with silk powder and polytetrafluoroethylene particles significantly increased the output current, and further performance enhancement could be achieved through appropriate design of the dielectric layer and operating conditions.
Article
Polymer Science
Martin Timusk, Linards Lapcinskis, Viraj P. Nirwan, Annika Trei, Toivo Maimets, Amir Fahmi, Andris Sutka
Summary: The study explores potential synthesis routes for efficient, implantable, and bio-absorbable triboelectric nanogenerators, investigating their charge, thermal, and infrared spectroscopic properties, as well as biocompatibility. Copolymers of sorbitol and sebacic acid (PSS) and hexanediol and citric acid (PHC) were synthesized to improve charge efficiency, while a copolymer of citric acid, glutaric acid, 1,2-propanediol, and 1,6-hexanediol (CHGP) was synthesized through a novel route. Triboelectric measurements showed significantly higher surface charge compared to commercially available elastomers. Thermal analysis displayed typical degradation and phase change behavior. Cytotoxicity studies revealed higher cell viability for PSS and PHC, indicating their potential use in implantable devices.