Review
Chemistry, Multidisciplinary
Yu Liang, Xinyu Xu, Libin Zhao, Chenyang Lei, Kejie Dai, Ran Zhuo, Beibei Fan, E. Cheng, Mohsen A. Hassan, Lingxiao Gao, Xiaojing Mu, Ning Hu, Chi Zhang
Summary: This review mainly focuses on the relationship between surface charge density and output power of triboelectric nanogenerators (TENGs). Various methods to enhance the surface charge density of TENGs are comprehensively discussed and the existing challenges and potential opportunities for future research in this area are highlighted.
Article
Chemistry, Physical
Zhihao Zhao, Yejing Dai, Di Liu, Xinyuan Li, Linglin Zhou, Baofeng Zhang, Jie Wang, Zhong Lin Wang
Summary: The use of inorganic single crystals as a friction layer in triboelectric nanogenerator improves the charge density of inorganic materials, overcoming their previous limitation. The charge density has reached its theoretical value in both air and vacuum conditions. Furthermore, the study establishes a quantitative understanding of the charge transfer mechanism between single crystals and metal, providing theoretical guidance for the contact electrification process of inorganic materials.
Article
Chemistry, Physical
Zirui Zhao, Xiaoli Wang, Yanqiang Hu, Zhihao Li, Lizhou Li
Summary: This study established a wear model based on charge density and an electrostatic induction model considering the distribution of transfer film, revealing the quantitative relationship between the transfer film area fraction and the electrical output.
Article
Nanoscience & Nanotechnology
Wenjie Yan, Yuan Liu, Leo N. Y. Cao, Tao Jiang, Baodong Chen, Wei Tang
Summary: Surface charge density is crucial for the output of the triboelectric nanogenerator. Various methods have been proposed to improve it. This study introduces a new technical route by designing an asymmetric-internal-capacitance configuration, which significantly increases the surface charge density and enhances the performance of the nanogenerator. It shows great potential in harvesting water wave energy.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Changjun Yang, Yamei Wang, Yan Wang, Zehui Zhao, Liwen Zhang, Huawei Chen
Summary: This study presents a stretchable hydrophobic triboelectric nanogenerator (SH-TENG) with excellent output and durability. The SH-TENG achieves synergistic enhancement of PTFE particles on both contact-separation and charge-transfer between droplet and triboelectric layer, resulting in increased transfer charge density and improved output performance.
Article
Nanoscience & Nanotechnology
Guoqiang Xu, Dong Guan, Jingjing Fu, Xinyuan Li, Anyin Li, Wenbo Ding, Yunlong Zi
Summary: The triboelectric nanogenerator (TENG) is a technology used for harvesting mechanical energy and allocating charge for scientific instruments. Current models cannot fully explain the phenomenon of triboelectric charge generation between ternary materials, so we proposed a new model based on the density of surface states (DOSS). Experimental results confirmed the validity of our model and predicted the high charge density potential of FEP material.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Youchao Qi, Guoxu Liu, Yang Kuang, Lu Wang, Jianhua Zeng, Yuan Lin, Han Zhou, Meiling Zhu, Chi Zhang
Summary: This study proposes a V-TENG with two stoppers and a charge pumping effect to broaden the frequency band and enhance the charge density. The experimental results show that compared to a V-TENG with a single stopper, the one with two stoppers can increase the bandwidth by 75% at a certain gap distance. Furthermore, a charge pump can significantly improve the surface charge density by about 14 times. This research is significant in enhancing the performance of V-TENGs and has great potential in harvesting wideband vibration energy from various sources.
Article
Multidisciplinary Sciences
V. Karthikeyan, S. Vivekanandan
Summary: This paper presents the optimization of surface morphology to enhance the charge transfer in a modeled triboelectric nanogenerator. The structured shape of the dielectric layer plays a vital role in improving the output performance. Among the different structured surface designs, the rectangular shape produces the highest output voltage. The results suggest that these structured surface nanogenerators can be used to create portable self-powered healthcare devices.
Article
Chemistry, Physical
Bin Luo, Chenchen Cai, Tao Liu, Song Zhang, Cong Gao, Yanhua Liu, Mingchao Chi, Jinlong Wang, Shuangfei Wang, Shuangxi Nie
Summary: This study investigates the charge transfer at the colloid-solid interface using a liquid-solid triboelectric nanogenerator. The results show that ion adsorption and the generation of hydrated protons play crucial roles in the charge transfer process.
Review
Polymer Science
Mina Shanbedi, Haleh Ardebili, Alamgir Karim
Summary: Triboelectric nanogenerators (TENGs) are a new field in energy conversion technologies, with polymers playing a key role in their functioning. However, there are still many unanswered questions regarding the working mechanism of TENGs and the role of polymers. This review provides a comprehensive analysis of TENG fundamentals, the effects of environmental parameters, and the impact of polymer modification on TENG performance, helping to elucidate the role of polymer modification in TENGs.
PROGRESS IN POLYMER SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Jinlong Wang, Yanhua Liu, Tao Liu, Song Zhang, Zhiting Wei, Bin Luo, Chenchen Cai, Mingchao Chi, Shuangfei Wang, Shuangxi Nie
Summary: In this paper, a high-temperature-resistant triboelectric material is designed based on multilevel non-covalent bonding interactions, achieving an ultra-high surface charge density. TENGs based on this material exhibit higher power output at high temperatures, pointing out a promising direction for the preparation of polymers with excellent triboelectric properties.
Article
Chemistry, Physical
Maoyi Zhang, Wenxuan Zhu, Tongtong Zhang, Yewang Su, Ya Yang
Summary: Triboelectric nanogenerators (TENGs) have great potential to alleviate the energy crisis. Previous researchers have tried different strategies to improve the output signal of contact separation TENGs. This study proposes a new strategy by changing the lever ratio to increase the contact separation speed and improve the output signal.
Article
Chemistry, Physical
Hongyu Zhou, Jun Dong, Haiwei Liu, Lili Zhu, Cunyun Xu, Xiaofeng He, Sam Zhang, Qunliang Song
Summary: The introduction of a charge collector needle in the traditional architecture of TENG allows for the conduction current, resulting in a new water tube TENG (DcCc-TENG) with high instantaneous power. Through a detailed physical process model, it is revealed that the high instantaneous power output of DcCc-TENG is based on the synergistic enhancement mechanism of displacement and conduction currents. The experimental results demonstrate a high instantaneous volumetric power density of 16.6 W/m(3) for a single device, capable of powering more than 120 LEDs, and the potential application of DcCcTENG is further demonstrated in a ship attitude sensor.
Article
Chemistry, Physical
Ze Yang, Yiyong Yang, Fan Liu, Bo Li, Yinbo Li, Xu Liu, Jiaqi Chen, Chengbiao Wang, Linhong Ji, Zhong Lin Wang, Jia Cheng
Summary: A new decoupled charge pump operation method for triboelectric nanogenerators (TENGs) is proposed to address the challenges in practical applications. By integrating a discharge tube, the instantaneous peak current of TENGs is increased by thousandfold, resulting in higher power density and charge density.
Article
Chemistry, Physical
Junjun Huang, Wangping Wu, Ruxia Zhang, Guoqing Lu, Bing Chen, Zhenming Chen, Chengmei Gui
Summary: The study developed a method for electroless nickel plating on polyethylene terephthalate surface to fabricate TENG electrodes, and investigated the output performance under various external forces. Results showed that the Ni coating on PET with higher roughness exhibited excellent performance in TENG devices, yielding a maximum open-circuit voltage of 39V. The relationship between the output electrical signal and SiO2 content in the primer presented a similar trend for the Sr.
Article
Chemistry, Physical
Hongye Guan, Pingjin Zou, Rui Lin, Ling Xiao, Zengyi Fang, Junyang Chen, Tao Lin, Yuan Wang, Yifeng Peng, Tianyan Zhong, Biqin Zhang, Jinyi Lang, Yan Zhang, Lili Xing, Meihua Chen, Xinyu Xue
Summary: Researchers have developed a new implantable self-powered therapeutic pellet that provides wireless hybrid therapy for cancer treatment. The pellet utilizes ultrasound energy to power a light-emitting diode illuminant and control circuit, delivering therapeutic doses of light to tissues for photodynamic therapy alongside direct sonodynamic therapy. In vivo studies on mice have demonstrated its high efficiency in treating breast cancer, surpassing the individual effectiveness of either PDT or SDT. This research not only has significant implications for cancer treatment but also highlights the critical interplay between current clinical therapies and future precision therapies.
Article
Chemistry, Physical
Hongye Guan, Yong Tang, Zhihe Long, Rui Lin, Shan Liang, Fuqiang Zhu, Tianyan Zhong, Yaming Zhang, Yaowei Fan, Zhen Wang, Chuang Shi, Wanli Ma, Sheng Sun, Meihua Chen, Lili Xing, Yan Zhang, Xinyu Xue, Yang Zhan
Summary: Neural regulation that is remotely controlled by medical professionals or AI agents can provide rapid, precise, and personalized intervention while optimizing the allocation of medical resources. Researchers have developed a self-powered wireless brain probe that can be controlled by cellphone audio tones and AI video analysis. The probe consists of a biocompatible pedestal with stimulation electrodes, magnets, and a signal-intensifying resonator with a piezoelectric powered modulation circuit. It can be wirelessly powered and controlled by programmed audio tones transmitted from other cellphones. Combined with AI-enabled video monitoring, the probe has shown therapeutic effects in relieving seizure events in epileptic mice.
Article
Materials Science, Multidisciplinary
Yiming Han, Jiaheng Nie, Junjin Ren, Xin Cui, Yan Zhang
Summary: Triboelectric nanogenerator-based environmental energy harvesting technology has a revolutionary impact on traditional industrial fields in addition to its applications for the Internet of Things. A self-powered while-drilling communications system based on a triboelectric nanogenerator is reported, with a data transmission rate three orders of magnitude higher than traditional methods.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Physical
Ruhao Liu, Yaming Zhang, Yuankai Zhou, Jiaheng Nie, Lijie Li, Yan Zhang
Summary: This study investigates the properties of spin and valley transport in piezotronics valley transistors based on a normal/ferromagnetic/normal (NFN) structure of monolayer transition metal dichalcogenides (TMDs). The Rabi frequency can reach up to 4200 MHz using the piezotronics effect, which is about 1000 times higher than that of ZnO/CdO quantum well devices. The strain-induced strong polarization allows for control of the spin and valley transport properties in piezo-phototronic transistors. The theoretical calculations include the spin and valley conductance as well as the spin and valley polarizability. The strong polarization can be used to manipulate the valley qubit, thereby paving a new way for quantum computing applications based on piezotronic valley transistors.
Article
Physics, Applied
Chenhao Liang, Ruhao Liu, Minjiang Dan, Nian Liu, Yan Zhang
Summary: This study proposes a piezotronic field-effect transistor (FET) device based on a topological insulator (TI) using wurtzite/zincblende InAs quantum wells (QWs). The subthreshold swing can reach 5 mV/decade. The subthreshold swing of FETs requires a minimum gate voltage of 60 mV due to thermal voltage. The polarization in these QWs can drive a large-gap TI with a bulk band gap of approximately 50 meV. The TI maintains a large band gap characteristic under a compressive stress of 7 GPa.
PHYSICAL REVIEW APPLIED
(2023)
Review
Energy & Fuels
Jiaheng Nie, Yaming Zhang, Jizheng Wang, Lijie Li, Yan Zhang
Summary: Polyvinylidene difluoride (PVDF)-based perovskite solar cells (PSCs) have achieved continuous improvements in efficiency up to 24.23%. These polarization-enhanced solar cells offer a simpler strategy to achieve stable polarization and increase efficiency.
Article
Chemistry, Physical
Gongwei Hu, Fobao Huang, Jun-Feng Liu
Summary: The combination of piezoelectricity and spin-orbit coupling in wurtzite semiconductors provides new avenues for manipulating spin-related physics and spintronic applications. In this study, the manipulation of spin-orbit coupling in (Al, Ga)N/GaN heterostructures by external stress-induced piezoelectric polarization is explored using self-consistent calculations and Lowdin perturbation approach. The results show that Rashba spin-orbit coupling weakly depends on stress, while the piezoelectric polarization diminishes Dresselhaus coupling. Additionally, piezoelectricity improves the gate-tunability of spin-orbit coupling and enhances correlation effects in wurtzite heterostructures. This study offers valuable insights into piezoelectric modulation of spin-orbit physics and its potential for designing functional spintronic devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Green & Sustainable Science & Technology
Xin Cui, Yuankai Zhou, Ruhao Liu, Jiaheng Nie, Yaming Zhang, Pengyu Yao, Yan Zhang
Summary: This study develops a self-powered smart wireless temperature monitoring system using machine learning and TENG-driven transmitter for wireless communication and real-time temperature measurement. It can accurately monitor the ambient temperature and has the potential for low-cost environmental monitoring.
ADVANCED ENERGY AND SUSTAINABILITY RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Meihua Chen, Xin Cui, Yaming Zhang, Pingjin Zou, Ling Xiao, Mengzhe Kang, Junyang Chen, Junjin Ren, Zengyi Fang, Lijie Li, Jinyi Lang, Yan Zhang, Zhong Lin Wang
Summary: Wearable and implantable friction-based nanogenerators (TENGs) can convert human body movements into electricity. The self-generated dynamic electric field of TENGs offers a key technology for precision medicine, inhibiting the proliferation of cancer cells and reducing damage to healthy tissues.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Materials Science, Multidisciplinary
Yaming Zhang, Jiaheng Nie, Baohua Teng, Lijie Li, Yan Zhang
Summary: This article introduces the use of strain-induced polarization to enhance the performance of piezoelectric solar cells. Nonuniform strain can effectively increase the piezoelectric polarization, improving the power-conversion efficiency (PCE) of piezoelectric solar cells. By strain-induced polarization, the PCEs of solar cells based on 2D WS2 and MoS2 are boosted to 48.1% and 42.8%, respectively. Strain-induced polarization not only increases the built-in field, but also simplifies bandgap gradients through inexpensive strain regulation. In this article, a tandem and parallel piezo-phototronic solar cell with single-type 2D piezoelectric semiconductor materials is proposed, providing a novel way to develop an ultrahigh efficiency 2D material solar cell.
Article
Chemistry, Physical
Yaming Zhang, Jiaheng Nie, Ruhao Liu, Baohua Teng, Lijie Li, Yan Zhang
Summary: Piezotronics is an emerging field involving high-performance piezoelectric semiconductor devices. This study proposes a theory of quantum piezotronics under nonuniform strain and demonstrates its impact on the performance of piezoelectric devices through experimental examples.
Article
Chemistry, Physical
Xin Xue, Fobao Huang, Gongwei Hu
Summary: Manipulating spin polarization in wide-gap wurtzite semiconductors is crucial for high-temperature spintronics applications. A topological insulator recently discovered in wurtzite quantum wells offers a platform for spin-polarized transport through polarization field-driven topological edges and large Rashba spin-orbit coupling. This study proposes a spin-polarized device in a quantum point contact structure based on ZnO/CdO wurtzite topological quantum wells. The results demonstrate that the width of the quantum point contact can control lateral spin-orbit coupling and the band gap of edge states through the quantum size effect. This width-dependent lateral spin-orbit coupling effect provides an emerging electrical approach to manipulate spin-polarized electron transport in topological wurtzite systems.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Sirinya Ukasi, Paritta Jutapukti, Chiranicha Ninthub, Nattapong Pinpru, Phakkhananan Pakawanit, Wanwilai Vittayakorn, Satana Pongampai, Naratip Vittayakorn, Thitirat Charoonsuk
Summary: This study explores the enhancement of electrical output of flexible hybrid piezoelectric-triboelectric nanogenerators by incorporating gamma-glycine into fully organic composites. The research demonstrates the importance of optimized concentrations of gamma-glycine and chitosan in achieving superior performance. The study identifies the critical content of gamma-glycine that leads to the highest output signal, and provides theoretical explanations for this observation.
Article
Chemistry, Physical
Yoonsang Ra, Yu-seop Kim, Seonmo Yang, Namgyu Kang, Gyuwon Oh, Chungyeon Cho, Sangmin Lee, Dongwhi Choi
Summary: In this study, a portable energy harvester (STEP) was proposed to drive various functional LEDs using biomechanical energy. The roles and functionalities of a triboelectric nanogenerator (TENG) and electromagnetic generator (EMG) in the hybrid energy harvester were experimentally demonstrated, and the necessity of hybridization for LED-involved devices was described. The STEP showed promising potential as an effective energy supply strategy for various functional LEDs in related industries.
Article
Chemistry, Physical
Dae Sol Kong, Kyung Hoon Kim, Ying Chieh Hu, Jong Hun Kim, Inseo Kim, Jeongwan Lee, Joonhyuk Lee, Won Hyuk Shon, Hanjin Yoo, Chul-Un Ro, Seungsu Lee, Hyoungjeen Jeen, Minbaek Lee, Minseok Choi, Jong Hoon Jung
Summary: With the rapid development of the Internet of Things and artificial intelligence, smart home has emerged to fulfill the security, convenience, and energy-saving issues of modern life. A flexoelectric mica crystal is used to augment the finger touch-driven triboelectric output for operating a wireless and multichannel smart home controller. This work provides important ingredients for enhancing triboelectric output and realizing a convenient, multifunctional, cost-effective, and adaptable smart home control system without batteries.
Article
Chemistry, Physical
Yi Han, Fang Wu, Xiaozhen Du, Zihao Li, Haixiang Chen, Dongxing Guo, Junlei Wang, Hong Yu
Summary: This paper presents a novel type of triboelectric nanogenerator that utilizes wind energy, with a Y-type bluff body to enhance vibration and output power. The application of this generator successfully provides power for a wireless temperature and humidity sensor.
Article
Chemistry, Physical
Wen Zhang, Fangyuan Cheng, Miao Chang, Yue Xu, Yuyu Li, Shixiong Sun, Liang Wang, Leimin Xu, Qing Li, Chun Fang, Meng Wang, Yuhao Lu, Jiantao Han, Yunhui Huang
Summary: This study successfully induced the formation of a uniform and robust CEI by constructing ZrO2 nano-rivets on the surface of LCO, stabilizing the surface of high-voltage LCO and facilitating lithium-ion diffusion.
Article
Chemistry, Physical
Karl P. Olson, Laurence D. Marks
Summary: This paper investigates the role of contacting shapes in triboelectricity and provides scaling rules for designing energy harvesting devices.
Article
Chemistry, Physical
Jong-An Choi, Jingu Jeong, Mingyu Kang, Hee-Jin Ko, Taehoon Kim, Keun Park, Jongbaeg Kim, Soonjae Pyo
Summary: Wind-driven triboelectric nanogenerators (WTENGs) are a promising emerging technology for sustainable wind energy harvesting, offering high output performance, lightweight design, and compact dimensions. This study introduces an innovative WTENG design that leverages a rolling-based mechanism to achieve efficient omnidirectional wind energy harvesting.
Article
Chemistry, Physical
Liwei Dong, Qian Tang, Chaoyang Zhao, Guobiao Hu, Shuai Qu, Zicheng Liu, Yaowen Yang
Summary: This paper proposes a novel hybrid scheme for flag-type nanogenerators (FNGs) that enhances their performance and broadens their operational wind speed ranges by harnessing the synergistic potential of two aerodynamic behaviors. The proposed flag-type triboelectric-piezoelectric hybrid nanogenerator (FTPNG) integrates flapping piezoelectric flags (PEFs) and a fluttering triboelectric flag (TEF). The FTPNG achieves significant power generation and a broad wind speed range, surpassing other FNGs, making it suitable for various self-powered systems and Internet of Things applications.
Review
Chemistry, Physical
Yunmeng Li, Xin Liu, Zewei Ren, Jianjun Luo, Chi Zhang, Changyong (Chase) Cao, Hua Yuan, Yaokun Pang
Summary: The demand for green and eco-friendly materials is growing due to increasing environmental concerns related to traditional petroleum-based products. Marine biomaterials have emerged as a promising alternative, thanks to their abundant availability, biocompatibility, biodegradability, and low toxicity. In this review, we discuss the development and applications of triboelectric nanogenerators (TENGs) based on marine biomaterials. The operational modes, foundational principles, intrinsic qualities, and advantages of marine biomaterials commonly used in TENG designs are highlighted. Approaches to enhance the efficacy of TENGs derived from marine biomaterials are also discussed, along with documented applications from existing literature. Furthermore, the existing challenges and future directions in marine biomaterial-inspired TENGs are explored.
Article
Chemistry, Physical
Matthew P. Wells, Adam J. Lovett, Yizhi Zhang, Zhongxia Shang, Kosova Kreka, Babak Bakhit, Haiyan Wang, Albert Tarancon, Judith L. MacManus-Driscoll
Summary: Reversible solid oxide cells (rSOCs) offer a promising solution to efficient energy conversion, but have been limited in portable power and electrolysis applications due to excessive polarisation resistance of the oxygen electrode at low temperatures. This study demonstrates the growth of symmetric and complete rSOC structures with reduced polarisation resistance by tuning oxygen vacancy through annealing, providing a promising route towards high-performance rSOC devices for portable power applications.
Article
Chemistry, Physical
Kangkang Bao, Minghui Wang, Yue Zheng, Panpan Wang, Liwen Yang, Yang Jin, Hui Wu, Bin Sun
Summary: This study utilizes ethanol as an electrolyte additive to modulate the migration of zinc ions and the surface structure of zinc anodes, resulting in improved capacity retention and cycle life of zinc-based aqueous batteries.
Article
Chemistry, Physical
Haichao Yang, Wensi Cai, Ming Wang, Saif M. H. Qaid, Zhiyuan Xu, Huaxin Wang
Summary: The introduction of sodium alginate (SA) into perovskite solar cells improves the carrier dynamics, stability, and performance by inhibiting nonradiative recombination and retarded charge dynamics.
Article
Chemistry, Physical
Cuirong Zhang, Mingyuan Wei, Zihan Chen, Wansheng Lin, Shifan Yu, Yijing Xu, Chao Wei, Jinwei Zhang, Ziquan Guo, Yuanjin Zheng, Qingliang Liao, Xinqin Liao, Zhong Chen
Summary: Artificial Intelligence of Things (AIoT) aims to establish smart and informative interactions between humans and devices. However, common pixelated sensing arrays in AIoT applications present problems such as hard and brittle devices, complex structures, and low precision. This article introduces an innovative solution called the all-in-one intelligent semitransparent interactive nerve patch (AISI nerve patch), which integrates sensing, recognition, and transmission functionalities into a thin and flexible patch. The AISI nerve patch is semitransparent, allowing for accurate identification without affecting aesthetics, and it can be attached to any curved surface for intelligent and interactive applications. With rapid response time and high precision recognition, it enables the integration of artificial intelligence and achieves high recognition accuracy for further development of AIoT.
Article
Chemistry, Physical
Youcun Bai, Heng Zhang, Huijun Song, Chong Zhu, Lijin Yan, Qin Hu, Chang Ming Li
Summary: A novel stainless-steel supported lattice-mismatched V-S-Se layered compound with high selenium vacancy was synthesized by adjusting the molar ratio of sulfur to selenium. The introduction of selenium vacancies created additional redox peaks of sulfur, providing more mass transport channels and active sites for zinc ions. The specific capacity and cycle stability of the electrode were significantly improved, demonstrating great potential for practical applications and providing insights into the effects of defects on battery performance.
Article
Chemistry, Physical
Yao Xiao, Puxian Xiong, Yakun Le, Zhenjie Lun, Kang Chen, Zhiduo Wang, Peishan Shao, Zhicong Chen, Dongdan Chen, Zhongmin Yang
Summary: This study successfully synthesized a material with multi-stimulus-responsive luminescence and confirmed the internal relationship between luminescence and defects by regulating the distribution and depth of defects. The dynamic process of multi-stimulus-responsive luminescence was validated by experimental and calculation results.
