Article
Chemistry, Physical
Xin Pan, Huijing Xiang, Ziwei Xuan, Yang Jie, Xia Cao
Summary: This study presents a direct current triboelectric nanogenerator (DC-TENG) with a metal-polymer-semiconductor interface and a dynamic Al/PVP/Si heterojunction, which achieves higher voltage output by increasing the surface state density of silicon. The DC-TENG can be used in self-powered electronic devices and self-powered sensing applications by introducing conventional dielectric polymer materials.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Tianmei Lv, Renwei Cheng, Chuanhui Wei, Erming Su, Tao Jiang, Feifan Sheng, Xiao Peng, Kai Dong, Zhong Lin Wang
Summary: This study developed three all-fabric direct-current triboelectric nanogenerators (AFDC-TENG) based on the tribovoltaic effect by doping organic molecules onto carbon atoms of single-wall carbon nanotubes (SWCNTs). These nanogenerators exhibit high flexibility, satisfactory comfort, and stable DC output, providing potential applications for future micro/nano energy or self-powered flexible sensors.
ADVANCED ENERGY MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Liqiang Zhang, Haifang Cai, Liang Xu, Li Ji, Daoai Wang, Youbin Zheng, Yange Feng, Xudong Sui, Yufeng Guo, Wanlin Guo, Feng Zhou, Weimin Liu, Zhong Lin Wang
Summary: In this study, a new macroscale superlubric triboelectric nanogenerator (SL-TENG) was developed to achieve ultra-low friction and wear under high-contact stress. The SL-TENG showed high power density and output current, and the ultralow friction on the hydrogenated surface was identified as the key factor. The SL-TENG demonstrated the ability to light up LEDs without rectification and enable online friction monitoring and early warning.
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)
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.
Article
Chemistry, Multidisciplinary
Beibei Fan, Zhaozheng Wang, Guoxu Liu, Zheng Wang, Xianpeng Fu, Likun Gong, Chi Zhang
Summary: A robust flexible textile tribovoltaic nanogenerator based on a 2D dynamic heterojunction of 2H-MoS2/Ta4C3 has been developed. During the friction process, an electric field is generated and a significant number of electron-hole pairs are excited to generate direct current through the dynamic heterojunction. The output power density and robustness of the nanogenerator are investigated.
ADVANCED FUNCTIONAL MATERIALS
(2023)
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, Physical
Sicheng Dong, Tianzhao Bu, Zhaozheng Wang, Yuan Feng, Guoxu Liu, Jianhua Zeng, Zhihao Wang, Jie Cao, Zhi Zhang, Feng Liu, Chi Zhang
Summary: A freestanding-mode TVNG (FTVNG) based on metal, p-Si, and n-Si is proposed, which can generate opposite DC outputs by rubbing against p-Si and n-Si, enabling energy harvesting from moving objects without attached wires. The electrical output characteristics and influence laws of the tribovoltaic effect are studied under different working parameters. FTVNG is integrated into a traditional rolling bearing, demonstrating its application potential in basic components and parts.
ADVANCED ENERGY MATERIALS
(2023)
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
Materials Science, Multidisciplinary
Z. Zhang, T. He, J. Zhao, G. Liu, Z. L. Wang, C. Zhang
Summary: The study discusses the coupling effects of frictional heating, triboelectrification, and semiconductor materials. Rubbing a metal on a semiconductor can lead to the generation of thermoelectric and tribovoltaic effects, resulting in the movement of majority carriers and the generation of direct current. The output is influenced by factors such as frictional energy, temperature difference, velocity, and pressure, demonstrating the potential for multi-source energy harvesting.
MATERIALS TODAY PHYSICS
(2021)
Article
Chemistry, Physical
You-Sun Lee, Sera Jeon, Dabin Kim, Dong-Min Lee, Dohyung Kim, Sang-Woo Kim
Summary: In this study, direct current-generating triboelectric nanogenerators (DC-TENGs) based on the tribovoltaic p-n junction using n-type perovskite (CsFAMA) and p-type conductive polymer (PEDOT:PSS) were developed. The CsFAMA based DC-TENG showed a high DC power output of about 2.1 μA cm-2 and 0.33 V. The introduction of choline chloride (ChCl) to passivate the defects inside CsFAMA improved the power-generating performance of DC-TENG by increasing triboelectric charge density, carrier mobility, and built-in potential. By reducing defect sites, enhancing electron mobilities, and modulating work function, the passivated CsFAMA-based DC-TENG generated an output current density of 11 μA cm-2 and an output voltage of 0.80 V. This study is important for the development of high-performance DC-TENGs by controlling the triboelectric semi-conducting interface.
Article
Chemistry, Physical
Han-Hsuan Huang, Ruey-Chi Wang, Yu-Jie Chen
Summary: This study presents the fabrication of an immersion-type triboelectric nanogenerator (TENG) that harvests mechanical energy from running water and acts as a self-powered water-speed sensor. The TENG demonstrates significant enhancements in output current density and voltage compared to traditional devices, and also shows potential for bubble sensing and energy harvesting in dynamic water. These findings contribute new insights into the triboelectric and tribovoltaic mechanisms in water and offer novel ideas for monitoring and utilizing water resources.
Article
Chemistry, Physical
Zidong Yu, Han Yang, Navneet Soin, Liming Chen, Nathan Black, Ke Xu, Preetam Kumar Sharma, Christos Tsonos, Amit Kumar, Jikui Luo
Summary: By utilizing Bismuth Oxyiodide as the foundation, combining the triboelectric effect and photo-enhanced charge generation effect, this study successfully improved the output performance of the triboelectric nanogenerator. Additionally, a significant increase in the surface photovoltage of BiOI under illumination was observed, with the reasons for the enhancement effect explained.
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
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
Multidisciplinary Sciences
Xiong Pu, Chi Zhang, Zhong Lin Wang
Summary: This article comprehensively reviews the research progress of the triboelectric nanogenerator (TENG) as a promising mechanical-to-electrical energy conversion technology for wearable power sources and self-powered sensors. The increasing demands in multifunction require high-performance energy and sensor devices for wearable electronics. TENG, which can convert mechanical energy into electricity, has drawn extensive attention and research efforts worldwide for its potential application in wearable devices.
NATIONAL SCIENCE REVIEW
(2023)
Article
Chemistry, Applied
Xiuming Mei, Xiaoxiao Wu, Fan Zhou, Yanrong Liu, Hanxu Ji, Yufeng Li, Diyao Jiang, Miao Yang, Jingjing Xu, Yuwei Qiang, Can Wang, Yu Zhang, Chi Zhang
Summary: This study used headspace solid-phase microextraction coupled with headspace GC-tandem mass spectrometry (HS-SPME-GC-MS) to screen volatile substances in infected wheat and selected a chemical marker for disease determination. Two analytical methodologies, HS-SPME-GC-MS and headspace gas chromatography with flame ionization detection (HS-GC-FID), were established to determine the trimethylamine (TMA) content. The HS-SPME-GC-MS method showed excellent sensitivity and allowed for the determination of 0.05% infected kernels among whole wheat grains.
FOOD ADDITIVES AND CONTAMINANTS PART A-CHEMISTRY ANALYSIS CONTROL EXPOSURE & RISK ASSESSMENT
(2023)
Article
Chemistry, Multidisciplinary
Zhaocheng Lu, Chi Zhang, Sun Hwa Kwon, Zhipeng Jiang, Lin Dong
Summary: Converting mechanical energy into electrical energy is vital for flexible electronics, and a hybrid energy harvesting strategy using porous polymeric piezoelectric film and electrostatic layer has been developed. The engineered microstructures of the piezoelectric materials enhance energy generation, while the electrostatic effect from the charged layer contributes to electrical charge generation. By integrating stretchable carbon nanotubes onto elastomers, complex electronics can be designed. The hybrid piezoelectric-electrostatic device shows superior energy harvesting performance, with a voltage output of 1.95V, an improvement of 30% and 100% compared to the electrostatic and piezoelectric alone devices, respectively. Experiments demonstrate the device's ability to power small electronics and recognize different body motions. This hybrid strategy offers a new solution for the future energy revolution in flexible electronics.
ADVANCED MATERIALS INTERFACES
(2023)
Review
Materials Science, Multidisciplinary
Shengxin Xiang, Yuanwei Wang, Chi Zhang, Zhiwei Zhao, Baoping Wang, Wenjun Zou, Jun Wu
Summary: With the rapid development of IoT technology, smart contact lenses have emerged as a new type of device that can monitor physiological information of the eye. By incorporating sensing, connection, and application layers, smart contact lenses enable real-time non-invasive monitoring of eye diseases, helping individuals gain better understanding of their physical condition.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Materials Science, Multidisciplinary
Xianpeng Fu, Yuhan Qin, Zhi Zhang, Guoxu Liu, Jie Cao, Beibei Fan, Zhaozheng Wang, Zheng Wang, Chi Zhang
Summary: This study proposes an ultra-robust and high-performance rotational triboelectric nanogenerator (R-TENG) by using a bearing charge pumping mechanism. The R-TENG consists of a pumping TENG (P-TENG), an output TENG (O-TENG), a voltage-multiplying circuit (VMC), and a buffer capacitor. The P-TENG is designed with a freestanding mode based on a rolling ball bearing, which serves as the rotating mechanical energy harvester. The low charge generated by the P-TENG is accumulated and pumped to the non-contact O-TENG, resulting in reduced mechanical wear and increased output performance. The matched instantaneous power of R-TENG is increased by 32 times at 300 r/min, and the transferring charge remains at 95% during 15 days of continuous operation (6.4 x 10(6) cycles). This work presents a feasible method to enhance the durability of TENG, which can facilitate the practical applications of high-performance TENG in harvesting distributed ambient micro mechanical energy.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Zhihao Wang, Junqing Zhao, Likun Gong, Zheng Wang, Yuhan Qin, Zhaozheng Wang, Beibei Fan, Jianhua Zeng, Jie Cao, Chi Zhang
Summary: This paper proposes a near-zero quiescent power sound wake-up and identification system based on a triboelectric nanogenerator (TENG), which can harvest ambient sound energy and activate the system. The system utilizes a deep learning technique to identify sound sources and can transmit recorded sound signals to a remote computer for recognition. In standby mode, the system has extremely low power consumption. This research has great application prospects in smart homes, unmanned monitoring, and the Internet of Things.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Bo Peng, Xinyue Wu, Chi Zhang, Chao Zhang, Lingyi Lan, Jianfeng Ping, Yibin Ying
Summary: A self-adhesive, water-proof, and gas-permeable electrode was fabricated by in situ electrospinning of a polylactic acid nanofiber membrane (PLANFM) on a leaf, spraying a layer of the carbon nanotube membrane (CNTM) on PLANFM, and in situ electrospinning of PLANFM on CNTM. The electrodes could be self-adhered to the leaf via electrostatic adhesion and formed a capacitance sensor. The in situ fabricated electrode did not affect plant physiological parameters, and a wireless leaf capacitance sensing system was developed to detect the change of plant water status in the early stage of drought stress.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Beibei Fan, Zhaozheng Wang, Guoxu Liu, Zheng Wang, Xianpeng Fu, Likun Gong, Chi Zhang
Summary: A robust flexible textile tribovoltaic nanogenerator based on a 2D dynamic heterojunction of 2H-MoS2/Ta4C3 has been developed. During the friction process, an electric field is generated and a significant number of electron-hole pairs are excited to generate direct current through the dynamic heterojunction. The output power density and robustness of the nanogenerator are investigated.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Environmental
Jia Xin Liu, Guoxu Liu, Zi Hao Guo, Weiguo Hu, Chi Zhang, Xiong Pu
Summary: This work presents a stretchable electret-based triboelectric nano-generator (SEB-TENG) for stretchable and wearable electronics. The device exhibits high stretchability, high charge density, and can be used to power electronic devices. A power management module (PMM) is also designed to optimize energy utilization.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Yuhan Qin, Xianpeng Fu, Yuan Lin, Zheng Wang, Jie Cao, Chi Zhang
Summary: This study proposes a self-powered IoT sensing node based on a triboelectric nanogenerator (TENG) for sustainable environmental monitoring. The TENG, powered by wind energy, converts weak electrical energy into a stable direct current (DC) 2.5V voltage to operate the IoT sensing node. The node can activate when the storage energy exceeds 4.4V, and the monitoring data is transmitted to the IoT cloud platform using narrowband IoT (NB-IoT) module. This work offers a universal strategy for sustainable IoT sensing nodes powered by environmental micro-nano mechanical energy, with potential applications in IoT, big data, and environmental monitoring.
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, Physical
Sicheng Dong, Tianzhao Bu, Zhaozheng Wang, Yuan Feng, Guoxu Liu, Jianhua Zeng, Zhihao Wang, Jie Cao, Zhi Zhang, Feng Liu, Chi Zhang
Summary: A freestanding-mode TVNG (FTVNG) based on metal, p-Si, and n-Si is proposed, which can generate opposite DC outputs by rubbing against p-Si and n-Si, enabling energy harvesting from moving objects without attached wires. The electrical output characteristics and influence laws of the tribovoltaic effect are studied under different working parameters. FTVNG is integrated into a traditional rolling bearing, demonstrating its application potential in basic components and parts.
ADVANCED ENERGY MATERIALS
(2023)
Article
Engineering, Environmental
Likun Gong, Zhaozheng Wang, Junqing Zhao, Jiajun Tang, Zheng Li, Weiqi Meng, Zhipeng Qiu, Yuhan Qin, Xingwei Wang, Chi Zhang, Dongzhi Zhang
Summary: This study proposes an integrated supercapacitor and humidity sensor system based on bifunctional materials. The system shows excellent performance and can be applied in various fields such as non-contact human-computer interaction, respiratory system monitoring, and hazardous environment humidity monitoring.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Likun Gong, Zhaozheng Wang, Ruifei Luan, Guoxu Liu, Beibei Fan, Yuan Feng, Jie Cao, Youchao Qi, Chi Zhang, Zhi Zhang
Summary: This study proposes a competitive mechanism to determine the current direction and magnitude of silicon-based tribovoltaic nanogenerator, and explores the factors that affect its electrical output stability.
ADVANCED FUNCTIONAL MATERIALS
(2023)
