Artykuły w czasopismach: „Self-Powered devices”

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Xu, Sheng, Yong Qin, Chen Xu, Yaguang Wei, Rusen Yang i Zhong Lin Wang. "Self-powered nanowire devices". Nature Nanotechnology 5, nr 5 (28.03.2010): 366–73. http://dx.doi.org/10.1038/nnano.2010.46.

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Conzuelo, Felipe, Adrian Ruff i Wolfgang Schuhmann. "Self-powered bioelectrochemical devices". Current Opinion in Electrochemistry 12 (grudzień 2018): 156–63. http://dx.doi.org/10.1016/j.coelec.2018.05.010.

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Amsel, Avigail D., Arkady Rudnitsky i Zeev Zalevsky. "A Self-Powered Medical Device for Blood Irradiation Therapy". Journal of Atomic, Molecular, and Optical Physics 2012 (27.06.2012): 1–5. http://dx.doi.org/10.1155/2012/963187.

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Implantable wireless devices may allow localized real-time biomedical treating and monitoring. However, such devices require a power source, which ideally, should be self-powered and not battery dependent. In this paper, we present a novel self-powered light therapeutic device which is designed to implement blood irradiation therapy. This device is self-powered by a miniaturized turbine-based generator which uses hydraulic flow energy as its power source. The research presented in this paper may become the first step towards a new type of biomedical self-operational micromechanical devices deployed for biomedical applications.

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Elahi, Hassan, Khushboo Munir, Marco Eugeni, Sofiane Atek i Paolo Gaudenzi. "Energy Harvesting towards Self-Powered IoT Devices". Energies 13, nr 21 (22.10.2020): 5528. http://dx.doi.org/10.3390/en13215528.

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The internet of things (IoT) manages a large infrastructure of web-enabled smart devices, small devices that use embedded systems, such as processors, sensors, and communication hardware to collect, send, and elaborate on data acquired from their environment. Thus, from a practical point of view, such devices are composed of power-efficient storage, scalable, and lightweight nodes needing power and batteries to operate. From the above reason, it appears clear that energy harvesting plays an important role in increasing the efficiency and lifetime of IoT devices. Moreover, from acquiring energy by the surrounding operational environment, energy harvesting is important to make the IoT device network more sustainable from the environmental point of view. Different state-of-the-art energy harvesters based on mechanical, aeroelastic, wind, solar, radiofrequency, and pyroelectric mechanisms are discussed in this review article. To reduce the power consumption of the batteries, a vital role is played by power management integrated circuits (PMICs), which help to enhance the system’s life span. Moreover, PMICs from different manufacturers that provide power management to IoT devices have been discussed in this paper. Furthermore, the energy harvesting networks can expose themselves to prominent security issues putting the secrecy of the system to risk. These possible attacks are also discussed in this review article.

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Yang, Zetian, Zhongtai Zhu, Zixuan Chen, Mingjia Liu, Binbin Zhao, Yansong Liu, Zefei Cheng, Shuo Wang, Weidong Yang i Tao Yu. "Recent Advances in Self-Powered Piezoelectric and Triboelectric Sensors: From Material and Structure Design to Frontier Applications of Artificial Intelligence". Sensors 21, nr 24 (17.12.2021): 8422. http://dx.doi.org/10.3390/s21248422.

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The development of artificial intelligence and the Internet of things has motivated extensive research on self-powered flexible sensors. The conventional sensor must be powered by a battery device, while innovative self-powered sensors can provide power for the sensing device. Self-powered flexible sensors can have higher mobility, wider distribution, and even wireless operation, while solving the problem of the limited life of the battery so that it can be continuously operated and widely utilized. In recent years, the studies on piezoelectric nanogenerators (PENGs) and triboelectric nanogenerators (TENGs) have mainly concentrated on self-powered flexible sensors. Self-powered flexible sensors based on PENGs and TENGs have been reported as sensing devices in many application fields, such as human health monitoring, environmental monitoring, wearable devices, electronic skin, human–machine interfaces, robots, and intelligent transportation and cities. This review summarizes the development process of the sensor in terms of material design and structural optimization, as well as introduces its frontier applications in related fields. We also look forward to the development prospects and future of self-powered flexible sensors.

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Ali, Shawkat, Saleem Khan i Amine Bermak. "All-Printed Human Activity Monitoring and Energy Harvesting Device for Internet of Thing Applications". Sensors 19, nr 5 (8.03.2019): 1197. http://dx.doi.org/10.3390/s19051197.

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A self-powered device for human activity monitoring and energy harvesting for Internet of Things (IoT) devices is proposed. The self-powered device utilizes flexible Nano-generators (NGs), flexible diodes and off-the-shelf capacitors. During footsteps the NGs generate an AC voltage then it is converted into DC using rectifiers and the DC power is stored in a capacitor for powering the IoT devices. Polydimethylsiloxane (PDMS) and zinc stannate (ZnSnO3) composite is utilized for the NG active layer, indium tin oxide (ITO) and aluminum (Al) are used as the bottom and top electrodes, respectively. Four diodes are fabricated on the bottom electrode of the NG and connected in bridge rectifier configuration. A generated voltage of 18 Vpeak was achieved with a human footstep. The self-powered smart device also showed excellent robustness and stable energy scavenger from human footsteps. As an application we demonstrate human activity detection and energy harvesting for IoT devices.

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Zheng, Qiang, Qizhu Tang, Zhong Lin Wang i Zhou Li. "Self-powered cardiovascular electronic devices and systems". Nature Reviews Cardiology 18, nr 1 (7.09.2020): 7–21. http://dx.doi.org/10.1038/s41569-020-0426-4.

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Mainra, Jashan Kumar, Akshpreet Kaur, Gaurav Sapra i Parul Gaur. "Simulation and Modelling of Triboelectric Nanogenerator for Self-powered Electronic Devices". IOP Conference Series: Materials Science and Engineering 1225, nr 1 (1.02.2022): 012012. http://dx.doi.org/10.1088/1757-899x/1225/1/012012.

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Abstract Triboelectric Nanogenerators has revolutionised the area of energy harvesting and self-powered sensing. In recent years, variety of small scale applications of triboelectric nanogenerators have been explored extensively particularly in self powered electronics, wearable and implantable devices, self-powered biosensors, human motion monitoring, location evaluation, air quality control etc. This paper discusses simulation and modelling of contact separation mode based triboelectric nanogenerator. In this work, triboelectric nanogenerators are simulated in COMSOL to compare the voltage profile of three different triboelectric materials – Kapton, Teflon and RTV Silicone with respect to Aluminium. Also, the effect of thickness of triboelectric layer on voltage profile is studied to optimize the thickness of the films. The output voltage recorded is 75 V, 60 V and 59 V for RTV Silicone, Teflon and Kapton respectively. It was observed that with increase in thickness of triboelectric layer, output voltage first increases linearly and then starts decreasing. The future research is directed towards fabricating a robust device for realising self – powered electronic devices.

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Xue, Ziao, Li Wu, Junlin Yuan, Guodong Xu i Yuxiang Wu. "Self-Powered Biosensors for Monitoring Human Physiological Changes". Biosensors 13, nr 2 (7.02.2023): 236. http://dx.doi.org/10.3390/bios13020236.

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Human physiological signals have an important role in the guidance of human health or exercise training and can usually be divided into physical signals (electrical signals, blood pressure, temperature, etc.) and chemical signals (saliva, blood, tears, sweat). With the development and upgrading of biosensors, many sensors for monitoring human signals have appeared. These sensors are characterized by softness and stretching and are self-powered. This article summarizes the progress in self-powered biosensors in the past five years. Most of these biosensors are used as nanogenerators and biofuel batteries to obtain energy. A nanogenerator is a kind of generator that collects energy at the nanoscale. Due to its characteristics, it is very suitable for bioenergy harvesting and sensing of the human body. With the development of biological sensing devices, the combination of nanogenerators and classical sensors so that they can more accurately monitor the physiological state of the human body and provide energy for biosensor devices has played a great role in long-range medical care and sports health. A biofuel cell has a small volume and good biocompatibility. It is a device in which electrochemical reactions convert chemical energy into electrical energy and is mostly used for monitoring chemical signals. This review analyzes different classifications of human signals and different forms of biosensors (implanted and wearable) and summarizes the sources of self-powered biosensor devices. Self-powered biosensor devices based on nanogenerators and biofuel cells are also summarized and presented. Finally, some representative applications of self-powered biosensors based on nanogenerators are introduced.

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Kim, Minsoo P. "Multilayered Functional Triboelectric Polymers for Self-Powered Wearable Applications: A Review". Micromachines 14, nr 8 (20.08.2023): 1640. http://dx.doi.org/10.3390/mi14081640.

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Multifunctional wearable devices detect electric signals responsive to various biological stimuli and monitor present body motions or conditions, necessitating flexible materials with high sensitivity and sustainable operation. Although various dielectric polymers have been utilized in self-powered wearable applications in response to multiple external stimuli, their intrinsic limitations hinder further device performance enhancement. Because triboelectric devices comprising dielectric polymers are based on triboelectrification and electrostatic induction, multilayer-stacking structures of dielectric polymers enable significant improvements in device performance owing to enhanced interfacial polarization through dissimilar permittivity and conductivity between each layer, resulting in self-powered high-performance wearable devices. Moreover, novel triboelectric polymers with unique chemical structures or nano-additives can control interfacial polarization, allowing wearable devices to respond to multiple external stimuli. This review summarizes the recent insights into multilayered functional triboelectric polymers, including their fundamental dielectric principles and diverse applications.

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Chen, Liang, Jianqi Dong, Miao He i Xingfu Wang. "A self-powered, flexible ultra-thin Si/ZnO nanowire photodetector as full-spectrum optical sensor and pyroelectric nanogenerator". Beilstein Journal of Nanotechnology 11 (27.10.2020): 1623–30. http://dx.doi.org/10.3762/bjnano.11.145.

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In this work, a new type of self-powered, high-performance ultra-thin p-Si/n-ZnO nanowire (NW) flexible photodetector (PD) and its application as full-spectrum optical sensor and pyroelectric nanogenerator (PENG) are demonstrated. The working mechanism of PDs for PENGs is carefully investigated and systematically analyzed. The self-powered PDs exhibit high responsivity (1200 mA/W), high detectivity (1013 Jones) and fast response (τr = 18 μs, τf = 25 μs) under UV illumination. High and stable short-circuit output currents at each wavelength from ultraviolet (UV) to near-infrared (NIR) demonstrates that the device can realize full-spectrum optical communication. An experiment in which the PENG powers other devices is designed to further demonstrate the proposed working mechanism. This work provides an effective approach to realize self-powered, high-performance PDs for full-spectrum communication. Also, the fabrication of the PENG utilizing a simple and low-cost method shows its potential applications in self-powered flexible electronic devices.

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Munirathinam, Prabavathi, i Arunkumar Chandrasekhar. "Self-Powered Triboelectric Nanogenerator for Security Applications". Micromachines 14, nr 3 (1.03.2023): 592. http://dx.doi.org/10.3390/mi14030592.

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Valuable jewels, documents, and files left in hotel rooms by guests can be stolen at any time by an unauthorized person. This could have a serious psychological and economic impact on the guests. The house/hotel owners should make efforts to prevent theft from occurring. In this study, a self-powered sliding-mode triboelectric nanogenerator (TENG) is used as a sensor on a drawer. It is fixed to the side of the drawer and works in the lateral sliding mode. The electricity generated by the device during the push–pull action of the draw is ~125 V and F~12.5 µA. An analysis of the electrical performance was carried out using PET, paper, and nitrile as sliding materials. The electrical output from the device is used to notify the guest or hotel owner of any theft by an unidentified individual via Arduino and node MCU devices. Finally, this device can be helpful at night and can be extended using different materials.

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Zhang, Shaochun, Changming Qu, Yu Xiao, Hanyun Liu, Guofeng Song i Yun Xu. "Flexible alternating current electroluminescent devices integrated with high voltage triboelectric nanogenerators". Nanoscale 14, nr 11 (2022): 4244–53. http://dx.doi.org/10.1039/d1nr08203e.

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Self-powered flexible ACEL devices could be powered by high output voltage TENG, which introduced crumpled microstructures on the surface. The TENG-ACEL system has significant potential for wearable displays and self-powered monitoring systems.

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Lai, Zhihui, Junchen Xu, Chris R. Bowen i Shengxi Zhou. "Self-powered and self-sensing devices based on human motion". Joule 6, nr 7 (lipiec 2022): 1501–65. http://dx.doi.org/10.1016/j.joule.2022.06.013.

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Wang, Chan, Qiongfeng Shi i Chengkuo Lee. "Advanced Implantable Biomedical Devices Enabled by Triboelectric Nanogenerators". Nanomaterials 12, nr 8 (15.04.2022): 1366. http://dx.doi.org/10.3390/nano12081366.

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Implantable biomedical devices (IMDs) play essential roles in healthcare. Subject to the limited battery life, IMDs cannot achieve long-term in situ monitoring, diagnosis, and treatment. The proposal and rapid development of triboelectric nanogenerators free IMDs from the shackles of batteries and spawn a self-powered healthcare system. This review aims to overview the development of IMDs based on triboelectric nanogenerators, divided into self-powered biosensors, in vivo energy harvesting devices, and direct electrical stimulation therapy devices. Meanwhile, future challenges and opportunities are discussed according to the development requirements of current-level self-powered IMDs to enhance output performance, develop advanced triboelectric nanogenerators with multifunctional materials, and self-driven close-looped diagnosis and treatment systems.

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Zhang, Wanglinhan, i Xinyu Xue. "A Self-Powered Wearable Ultraviolet Radiation Detector Integrated with Wireless Devices Based on T-ZnO/PVDF Composite Fabric". Journal of Nanoelectronics and Optoelectronics 16, nr 4 (1.04.2021): 515–21. http://dx.doi.org/10.1166/jno.2021.2931.

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Research on wearable devices has promoted the development of real-time ultraviolet intensity monitoring technology. This paper proposes a self-powered wearable ultraviolet radiation detector based on T-ZnO nanowires/PVDF composite fabric. The soft fabric base allows the device to attach to various muscles of the human body. Due to the piezoelectric and photoelectric properties, the devices can transform mechanical energy into electrical energy. The output closely relates to the ultraviolet intensity. Therefore, this kind of stable, flexible, and micro device can output piezoelectric voltage as both an energy source and a sensing signal on human bodies. Experiments have proved that the wearable ultraviolet detector has high sensing stability and can work on the skin. The self-powered feature allows it to integrate with wireless transmission equipment, which can upload the ultraviolet intensity data collected by the self-powered wearable ultraviolet radiation detector to the Big Data Cloud. This system will contribute to the formation of the Internet of Things.

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Lin, Yuanjing. "(Invited) Nanostructured Electrochemical Devices and Self-Powered Systems for Biosensing". ECS Meeting Abstracts MA2022-02, nr 36 (9.10.2022): 1297. http://dx.doi.org/10.1149/ma2022-02361297mtgabs.

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Self-powered systems for biosensing have attracted tremendous research interest in recent years, mainly due to the rapidly expanding market of wearable and portable devices for applications in clinical diagnosis and physiological monitoring. In our work, novel and unique hierarchical nanostructures were designed and synthesized to realize electrochemical devices with high performance, especially the sensor stability and energy storage capability. Meanwhile, scalable and printable approach was developed to integrate these electrochemical devices into monolithically integrated self-powered systems. The as-developed nanostructured electrochemical devices in conjunction with printable approach show great potency in fabrication of various wearable integrated self-powered devices for personalized healthcare monitoring applications. Our research highlights are as follow: Development of nanoporous membranes for electrochemical sensor applications. It eliminates enzymes escaping and provides sufficient surface area for molecular/ion diffusion and interactions, so as to ensure the sustainable catalytic activities of the sensors and generate reliable measurable signals during noninvasive monitoring. The highly improved stability of sensors is extremely desirable for investigation of metabolic activities in physiological systems. A fully integrated and self-powered system in a smartwatch fashion for continuous monitoring of sweat glucose levels during both equilibrium status and dynamic activities. The smartwatch can be self-powered by flexible photovoltaic cells, without external charging, the harvested energy can also be stored in the flexible Zn-MnO2 batteries as backup power source. It is also capable for real-time and in situ data analysis/display with integrated circuit board and E-ink screen. A monolithically integrated self-powered smart sensor system with energy supplied by fully printable planar supercapacitors and embedded solar cells, was fabricated on plastic substrate with inkjet printing technique as a proof-of-concept. The as-developed printable nanostructured electrochemical devices in conjunction with printable approach for system integration show great potency in fabrication of various wearable integrated self-powered devices for personalized healthcare monitoring applications.

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Filho, Jose Ilton de Oliveira, Abderrahmen Trichili, Boon S. Ooi, Mohamed-Slim Alouini i Khaled Nabil Salama. "Toward Self-Powered Internet of Underwater Things Devices". IEEE Communications Magazine 58, nr 1 (styczeń 2020): 68–73. http://dx.doi.org/10.1109/mcom.001.1900413.

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Sun, Jiangman, Xiong Pu, Chunyan Jiang, Chunhua Du, Mengmeng Liu, Yang Zhang, Zhitian Liu, Junyi Zhai, Weiguo Hu i Zhong Lin Wang. "Self-powered electrochromic devices with tunable infrared intensity". Science Bulletin 63, nr 12 (czerwiec 2018): 795–801. http://dx.doi.org/10.1016/j.scib.2018.05.019.

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Kamilya, Tapas, i Jinhyoung Park. "Highly Sensitive Self-Powered Biomedical Applications Using Triboelectric Nanogenerator". Micromachines 13, nr 12 (25.11.2022): 2065. http://dx.doi.org/10.3390/mi13122065.

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The triboelectric nanogenerator (TENG) is a promising research topic for the conversion of mechanical to electrical energy and its application in different fields. Among the various applications, self-powered bio-medical sensing application has become popular. The selection of a wide variety of materials and the simple design of devices has made it attractive for the applications of real-time self-powered healthcare sensing systems. Human activity is the source of mechanical energy which gets converted to electrical energy by TENG fitted to different body parts for the powering up of the biomedical sensing and detection systems. Among the various techniques, wearable sensing systems developed by TENG have shown their merit in the application of healthcare sensing and detection systems. Some key studies on wearable self-powered biomedical sensing systems based on TENG which have been carried out in the last seven years are summarized here. Furthermore, the key features responsible for the highly sensitive output of the self-powered sensors have been briefed. On the other hand, the challenges that need to be addressed for the commercialization of TENG-based biomedical sensors have been raised in order to develop versatile sensitive sensors, user-friendly devices, and to ensure the stability of the device over changing environments.

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Han, Zhicheng, Pengchen Jiao i Zhiyuan Zhu. "Combination of Piezoelectric and Triboelectric Devices for Robotic Self-Powered Sensors". Micromachines 12, nr 7 (12.07.2021): 813. http://dx.doi.org/10.3390/mi12070813.

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Sensors are an important part of the organization required for robots to perceive the external environment. Self-powered sensors can be used to implement energy-saving strategies in robots and reduce their power consumption, owing to their low-power consumption characteristics. The triboelectric nanogenerator (TENG) and piezoelectric transducer (PE) are important implementations of self-powered sensors. Hybrid sensors combine the advantages of the PE and TENG to achieve higher sensitivity, wider measurement range, and better output characteristics. This paper summarizes the principles and research status of pressure sensors, displacement sensors, and three-dimensional (3D) acceleration sensors based on the self-powered TENG, PE, and hybrid sensors. Additionally, the basic working principles of the PE and TENG are introduced, and the challenges and problems in the development of PE, TENG, and hybrid sensors in the robotics field are discussed with regard to the principles of the self-powered pressure sensors, displacement sensors, and 3D acceleration sensors applied to robots.

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Shao, Yicheng, Maoliang Shen, Yuankai Zhou, Xin Cui, Lijie Li i Yan Zhang. "Nanogenerator-based self-powered sensors for data collection". Beilstein Journal of Nanotechnology 12 (8.07.2021): 680–93. http://dx.doi.org/10.3762/bjnano.12.54.

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Self-powered sensors can provide energy and environmental data for applications regarding the Internet of Things, big data, and artificial intelligence. Nanogenerators provide excellent material compatibility, which also leads to a rich variety of nanogenerator-based self-powered sensors. This article reviews the development of nanogenerator-based self-powered sensors for the collection of human physiological data and external environmental data. Nanogenerator-based self-powered sensors can be designed to detect physiological data as wearable and implantable devices. Nanogenerator-based self-powered sensors are a solution for collecting data and expanding data dimensions in a future intelligent society. The future key challenges and potential solutions regarding nanogenerator-based self-powered sensors are discussed.

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Xiao, Xiao, Yunsheng Fang, Xiao Xiao, Jing Xu i Jun Chen. "Machine-Learning-Aided Self-Powered Assistive Physical Therapy Devices". ACS Nano 15, nr 12 (16.12.2021): 18633–46. http://dx.doi.org/10.1021/acsnano.1c10676.

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Mukaida, Masakazu, Kazuhiro Kirihara, Shohei Horike i Qingshuo Wei. "Stable organic thermoelectric devices for self-powered sensor applications". Journal of Materials Chemistry A 8, nr 43 (2020): 22544–56. http://dx.doi.org/10.1039/d0ta08598g.

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Meddad, M., A. Eddiai, A. Chérif, A. Hajjaji i Y. Boughaleb. "Model of piezoelectric self powered supply for wearable devices". Superlattices and Microstructures 71 (lipiec 2014): 105–16. http://dx.doi.org/10.1016/j.spmi.2014.03.038.

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Zhao, Jinwei, Rami Ghannam, Kaung Oo Htet, Yuchi Liu, Man‐kay Law, Vellaisamy A. L. Roy, Bruno Michel, Muhammad Ali Imran i Hadi Heidari. "Self‐Powered Implantable Medical Devices: Photovoltaic Energy Harvesting Review". Advanced Healthcare Materials 9, nr 17 (29.07.2020): 2000779. http://dx.doi.org/10.1002/adhm.202000779.

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Sawane, Mohini, i Mahanth Prasad. "MEMS piezoelectric sensor for self-powered devices: A review". Materials Science in Semiconductor Processing 158 (maj 2023): 107324. http://dx.doi.org/10.1016/j.mssp.2023.107324.

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Bharathi Sankar Ammaiyappan, A., i Seyezhai Ramalingam. "Self-Powered Supercapacitor for Low Power Wearable device Applications". IOP Conference Series: Earth and Environmental Science 850, nr 1 (1.11.2021): 012016. http://dx.doi.org/10.1088/1755-1315/850/1/012016.

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Abstract Piezoelectric generators can be used strong vibrations convert to electrical power, it can be stored and utilized in low power devices such as radio frequency identification tags (RFIDs), wireless, global position system (GPS) and sensors. Since most low power devices are wireless, it is important that they have their own independent power. Traditionally, electrical energy comes from heavy lead acid and lithium ion batteries, which contain chemicals that are not environmental friendly. More importantly, lead acid and lithium ion batteries have an average lifespan of 500–1000 cycles, compared to carbon-based supercapacitors (10 lakhs cycle). With the introduction of a wide range of portable, wearable electronics devices and health monitoring equipment. Piezoelectric power harvesting equipment is one of the most applications of portable electronic power supply. Supercapacitors are promising electrochemical energy storage devices which possessing very high power density, rapid charge, and discharge rates with a long lifecycle. Supercapacitors hold high power density as compared to dielectric capacitors and hence supercapacitors are extensively utilized for powering several portable electronic devices. Supercapacitors explore a wide range of applications as they can deliver a high power within a very short period. In this paper describes various supercapacitor powered potential applications in various sectors like flexible, portable, wearable electronics, implantable healthcare and biomedical sensor, etc.

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Mi, Yajun, Yin Lu, Yalin Shi, Zequan Zhao, Xueqing Wang, Jiajing Meng, Xia Cao i Ning Wang. "Biodegradable Polymers in Triboelectric Nanogenerators". Polymers 15, nr 1 (31.12.2022): 222. http://dx.doi.org/10.3390/polym15010222.

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Triboelectric nanogenerators (TENGs) have attracted much attention because they not only efficiently harvest energy from the surrounding environment and living organisms but also serve as multifunctional sensors toward the detection of various chemical and physical stimuli. In particular, biodegradable TENG (BD-TENG) represents an emerging type of self-powered device that can be degraded, either in physiological environments as an implantable power source without the necessity of second surgery for device retrieval, or in the ambient environment to minimize associated environmental pollution. Such TENGs or TNEG-based self-powered devices can find important applications in many scenarios, such as tissue regeneration, drug release, pacemakers, etc. In this review, the recent progress of TENGs developed on the basis of biodegradable polymers is comprehensively summarized. Material strategies and fabrication schemes of biodegradable and self-powered devices are thoroughly introduced according to the classification of plant-degradable polymer, animal-degradable polymer, and synthetic degradable polymer. Finally, current problems, challenges, and potential opportunities for the future development of BD-TENGs are discussed. We hope this work may provide new insights for modulating the design of BD-TNEGs that can be beneficial for both environmental protection and healthcare.

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Wen, Xi, Kang Jiang, Heng Zhang, Hua Huang, Linyu Yang, Zeyan Zhou i Qunhong Weng. "Flexible and Wearable Zinc-Ion Hybrid Supercapacitor Based on Double-Crosslinked Hydrogel for Self-Powered Sensor Application". Materials 15, nr 5 (26.02.2022): 1767. http://dx.doi.org/10.3390/ma15051767.

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The rapidly growing Internet of Things (IoT) has brought about great demand for high-performance sensors as well as power supply devices for those sensors. In this respect, the integration of sensors and energy storage devices, or the development of multifunctional devices having both energy storage and sensing properties, is of great interest in the development of compact sensing systems. As a proof of concept, a zinc-ion hybrid supercapacitor (ZHS) based on a double-crosslinked hydrogel electrolyte is developed in this work, which can be employed not only as an energy storage device, but also as a self-powered sensor for human movement and breathing detection. The ZHS delivers a capacitance of 779 F g−1 and an energy density of 0.32 mWh cm−2 at a power density of 0.34 mW cm−2, as well as sensitive resistance response to strain. Our work provides a useful basis for future designs of self-powered sensing devices and function-integrated systems.

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Fang, Jian, Xun Gai Wang i Tong Lin. "Power Generation from Randomly Oriented Electrospun Nanofiber Membranes". Advanced Materials Research 479-481 (luty 2012): 340–43. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.340.

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Randomly orientated electrospun poly(vinylidene fluoride) nanofiber membranes were directly used as active layers to make mechanical-to-electrical energy conversion devices. Without any extra poling treatment, the device can generate high electrical outputs upon receiving a mechanical impact. The device also showed long-term working stability and ability to drive electronic devices. Such a nanofiber membrane device may serve as a simple but efficient energy source for self-powered electronics.

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Zuo, Chaolei, Sa Cai, Ziliang Li i Xiaosheng Fang. "A transparent, self-powered photodetector based on p-CuI/n-TiO₂ heterojunction film with high on–off ratio". Nanotechnology 33, nr 10 (16.12.2021): 105202. http://dx.doi.org/10.1088/1361-6528/ac3e35.

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Abstract Ultraviolet(UV) photodetectors(PDs) can monitor UV radiation, enabling it to be effective for many applications, such as communication, imaging and sensing. The rapid progress on portable and wearable optoelectronic devices places a great demand on self-powered PDs. However, high-performance self-powered PDs are still limited. Herein we display a transparent and self-powered PD based on a p-CuI/n-TiO2 heterojunction, which exhibits a high on–off ratio (∼104 at 310 nm) and a fast response speed (rise time/decay time = 0.11 ms/0.72 ms) without bias. Moreover, the device shows an excellent UV-selective sensitivity as a solar-blind UV PD with a high UV/visible rejection ratio (R 300 nm/R 400 nm = 5.3 × 102), which can be ascribed to the wide bandgaps of CuI and TiO2. This work provides a feasible route for the construction of transparent, self-powered PDs based on p–n heterojunctions.

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Garcia, Cristobal, Irina Trendafilova, Roberto Guzman de Villoria i Jose Sánchez del Río. "Triboelectric nanogenerator as self-powered impact sensor". MATEC Web of Conferences 148 (2018): 14005. http://dx.doi.org/10.1051/matecconf/201814814005.

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In recent years, triboelectric nanogenerators (TENGs) are used to harvest mechanical energy from ambient environment. These devices convert ambient energies (e.g. vibrations, breathing-driven, impacts or human body motions) into electricity based on the triboelectric effect. Furthermore, some TENGs can be successfully employed as self-power active sensors because the electric response from the TENG is proportional to the magnitude of the mechanical motion. This study report on the design and development of a novel triboelectric nanogenerator, and its potential application as self-powered impact sensor. To prepare the TENG device, membranes of polyvinylidene fluoride (PVDF) and polyvinylpyrrolidone (PVP) nanofibers are sandwiched between copper electrode films and wrapped on PET films. The TENG works based on the triboelectric interaction between the membranes of nanofibers. After the preparation, the TENGs are subjected to several impacts by the drop-ball impact test. The purpose of the experiment is to analyse if the electric response of TENG is dependent on the energy of the impact. The results of the experiment are presented and discussed. The main contributions of this work are the preparation of a novel nanogenerator (TENG) based on the triboelectric interaction between polyvinylidene fluoride and polyvinylpyrrolidone sub-micron polymer fibers and the investigation of its potential use as a self-powered impact sensor.

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Huang, Peng, Dan-Liang Wen, Yu Qiu, Ming-Hong Yang, Cheng Tu, Hong-Sheng Zhong i Xiao-Sheng Zhang. "Textile-Based Triboelectric Nanogenerators for Wearable Self-Powered Microsystems". Micromachines 12, nr 2 (5.02.2021): 158. http://dx.doi.org/10.3390/mi12020158.

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In recent years, wearable electronic devices have made considerable progress thanks to the rapid development of the Internet of Things. However, even though some of them have preliminarily achieved miniaturization and wearability, the drawbacks of frequent charging and physical rigidity of conventional lithium batteries, which are currently the most commonly used power source of wearable electronic devices, have become technical bottlenecks that need to be broken through urgently. In order to address the above challenges, the technology based on triboelectric effect, i.e., triboelectric nanogenerator (TENG), is proposed to harvest energy from ambient environment and considered as one of the most promising methods to integrate with functional electronic devices to form wearable self-powered microsystems. Benefited from excellent flexibility, high output performance, no materials limitation, and a quantitative relationship between environmental stimulation inputs and corresponding electrical outputs, TENGs present great advantages in wearable energy harvesting, active sensing, and driving actuators. Furthermore, combined with the superiorities of TENGs and fabrics, textile-based TENGs (T-TENGs) possess remarkable breathability and better non-planar surface adaptability, which are more conducive to the integrated wearable electronic devices and attract considerable attention. Herein, for the purpose of advancing the development of wearable electronic devices, this article reviews the recent development in materials for the construction of T-TENGs and methods for the enhancement of electrical output performance. More importantly, this article mainly focuses on the recent representative work, in which T-TENGs-based active sensors, T-TENGs-based self-driven actuators, and T-TENGs-based self-powered microsystems are studied. In addition, this paper summarizes the critical challenges and future opportunities of T-TENG-based wearable integrated microsystems.

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Lu, Jiang Lei, Guang Long Wang, Lian Feng Sun, Min Gao, Jian Hui Chen, Feng Qi Gao i Li Yuan Ma. "Self-Powered Device Using Aligned Carbon Nanotube Arrays in Multi-Physics Fields". Advanced Materials Research 287-290 (lipiec 2011): 1505–8. http://dx.doi.org/10.4028/www.scientific.net/amr.287-290.1505.

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A novel self-powered device based on the aligned carbon nanotube arrays (CNTA) in multi-physics fields has been put forward in this paper. Synthetically utilizing the photic, fluidic and thermic properties of carbon nanotubes, the multi-physical nanogenerators (MPNG) can generate electric currents when the solar irradiation and air flow synchronously effect on the material surface. Various MPNGs are connected in series to construct a unique truncated conus and cylinder shell structure in order to enhance the output voltage for self-powered electronic devices. The multi-physical power mechanism is formed by converting the solar and air flow energy to the thermoelectric effect. By the finite element analysis, the MPNG model including a pair of p-type and n-type CNTA elements is established, and its temperature and potential distribution are simulated. This self-powered device in multi-physics fields can be applied to a more complicated environment and has a fine prospect.

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Jeong, Se Yeong, Jae Yong Cho, Seong Do Hong, Wonseop Hwang, Hamid Jabbar, Jung Hwan Ahn, Jeong Pil Jhun i Tae Hyun Sung. "Self-Powered Operational Amplifying System with a Bipolar Voltage Generator Using a Piezoelectric Energy Harvester". Electronics 9, nr 1 (27.12.2019): 41. http://dx.doi.org/10.3390/electronics9010041.

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Piezoelectric devices previously studied usually generated a single voltage to power an electronic device. However, depending on the user’s purpose, the electronic device may need dual power supply. Here, we report a self-powered bipolar voltage generator using a piezoelectric energy harvester with two piezoelectric devices. When a force is applied to the piezoelectric energy harvester, the two piezoelectric devices separately supply positive and negative voltages to the operational amplifier that requires dual power supply to amplify an AC signal that have positive and negative polarity. At the same time, the harvester supplies additional power to an electronic device through a DC-to-DC converter with an output voltage of 3.3 V. This technique proves the feasibility of applying the piezoelectric energy harvester to operational amplifying systems in the field of sound, earthquake, and sonar that require both bipolar and single voltages without external power sources.

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Barsiwal, Sachin, Anjaly Babu, Uday Kumar Khanapuram, Supraja Potu, Navneeth Madathil, Rakesh Kumar Rajaboina, Siju Mishra i in. "ZIF-67-Metal–Organic-Framework-Based Triboelectric Nanogenerator for Self-Powered Devices". Nanoenergy Advances 2, nr 4 (21.10.2022): 291–302. http://dx.doi.org/10.3390/nanoenergyadv2040015.

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Energy harvesting from the ambient environment can be a beneficial and promising source for powering micro- and nanodevices. Triboelectric nanogenerator (TENG) technology has been proved to be a simple and cost-effective method to harness ambient mechanical energy. The performance of the TENG device mainly depends on the careful selection of the material pair. So far, metals and polymer materials have dominated TENG technology. Recently, there have been few reports on metal–organic framework (MoF)-based TENGs. MoFs are very interesting and offer excellent chemical and thermal stability, besides their unique properties, such as tunable pore size and high surface area. Herein, we report a zeolitic imidazole framework (ZIF-67)-based TENG device for self-powered device applications. We used ZIF-67 as one tribolayer, and PET and PMMA as opposite tribolayers. The output performance of the TENG device fabricated with the PMMA/ZIF-67 pair showed values of 300 V, 47.5 µA, and 593 mW/m2 of open-circuit voltage, short-circuit current, and power density, respectively. To the best of our knowledge, these are the highest reported values so far for ZIF-67-based TENG devices. The fabricated TENG device lit up 250 LEDs and was employed to explore different self-powered device applications.

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Dai, Pan, Ziwei Xu, Min Zhou, Min Jiang, Yukun Zhao, Wenxian Yang i Shulong Lu. "Detach GaN-Based Film to Realize a Monolithic Bifunctional Device for Both Lighting and Detection". Nanomaterials 13, nr 2 (16.01.2023): 359. http://dx.doi.org/10.3390/nano13020359.

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Due to the emerging requirements of miniaturization and multifunctionality, monolithic devices with both functions of lighting and detection are essential for next-generation optoelectronic devices. In this work, based on freestanding (In,Ga)N films, we demonstrate a monolithic device with two functions of lighting and self-powered detection successfully. The freestanding (In,Ga)N film is detached from the epitaxial silicon (Si) substrate by a cost-effective and fast method of electrochemical etching. Due to the stress release and the lightening of the quantum-confined Stark effect (QCSE), the wavelength blueshift of electroluminescent (EL) peak is very small (<1 nm) when increasing the injection current, leading to quite stable EL spectra. On the other hand, the proposed monolithic bifunctional device can have a high ultraviolet/visible reject ratio (Q = 821) for self-powered detection, leading to the excellent detection selectivity. The main reason can be attributed to the removal of Si by the lift-off process, which can limit the response to visible light. This work paves an effective way to develop new monolithic multifunctional devices for both detection and display.

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Panigrahi, Karamjyoti. "Intrinsic Piezo-Nanogenerator Integrated Flexible Self-Charging Supercapacitor Power Cell: Overview and Outlook". Science Dialectica 01, nr 1 (17.09.2021): 9–13. http://dx.doi.org/10.54162/sd01-25201/04.

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Coupling of energy harvesting unit with the energy storage one has already gained considerable attention in the development of self-powered portable gadgets. Nanogenerators (NGs) and flexible supercapacitors (SCs), both are considered as leading energy devices in their respective domains. Integration with each other opens up the new possibility of self-charging supercapacitors. Among, the NGs piezo-electric NGs are preferred over triboelectric NGs for integration with SC to avoid additional circuit complexity. Here, device architecture, the working principle, and imperative parameters regarding piezo-electric NG-based self-powered SCs are sequentially discussed. Finally, a conclusion is drawn from some recent works, and remarks are provided for cultivating its overall performance.

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Yahya Alkhalaf, Hussein, Mohd Yazed Ahmad i Harikrishnan Ramiah. "Self-Sustainable Biomedical Devices Powered by RF Energy: A Review". Sensors 22, nr 17 (24.08.2022): 6371. http://dx.doi.org/10.3390/s22176371.

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Wearable and implantable medical devices (IMDs) have come a long way in the past few decades and have contributed to the development of many personalized health monitoring and therapeutic applications. Sustaining these devices with reliable and long-term power supply is still an ongoing challenge. This review discusses the challenges and milestones in energizing wearable and IMDs using the RF energy harvesting (RFEH) technique. The review highlights the main integrating frontend blocks such as the wearable and implantable antenna design, matching network, and rectifier topologies. The advantages and bottlenecks of adopting RFEH technology in wearable and IMDs are reviewed, along with the system elements and characteristics that enable these devices to operate in an optimized manner. The applications of RFEH in wearable and IMDs medical devices are elaborated in the final section of this review. This article summarizes the recent developments in RFEH, highlights the gaps, and explores future research opportunities.

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Kim, Da Eun, Siho Shin, Gengjia Zhang, Daegil Choi i Jaehyo Jung. "Fully stretchable textile-based triboelectric nanogenerators with crepe-paper-induced surface microstructures". RSC Advances 13, nr 16 (2023): 11142–49. http://dx.doi.org/10.1039/d3ra01032e.

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Several studies have been conducted on textile-based TENGs (T-TENGs) with high performance and wearability, which can efficiently harvest energy based on human body motions. STENG is a self-powered device capable of supplying power to small and portable electronic devices.

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Wang, Yi-Lin, Hai-Tao Deng, Zhen-Yu Ren, Xin-Tian Liu, Yu Chen, Cheng Tu, Jun-Lian Chen i Xiao-Sheng Zhang. "The Interface between Nanoenergy and Self-Powered Electronics". Sensors 21, nr 5 (25.02.2021): 1614. http://dx.doi.org/10.3390/s21051614.

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In recent decades, nanogenerators based on several techniques such as triboelectric effects, piezoelectric effects, or other mechanisms have experienced great developments. The nanoenergy generated by nanogenerators is supposed to be used to overcome the problem of energy supply problems for portable electronics and to be applied to self-powered microsystems including sensors, actuators, integrated circuits, power sources, and so on. Researchers made many attempts to achieve a good solution and have performed many explorations. Massive efforts have been devoted to developing self-powered electronics, such as self-powered communication devices, self-powered human–machine interfaces, and self-powered sensors. To take full advantage of nanoenergy, we need to review the existing applications, look for similarities and differences, and then explore the ways of achieving various self-powered systems with better performance. In this review, the methods of applying nanogenerators in specific circumstances are studied. The applications of nanogenerators are classified into two categories, direct utilization and indirect utilization, according to whether a treatment process is needed. We expect to offer a line of thought for future research on self-powered electronics.

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Kokalj, Tadej, Younggeun Park, Matjaž Vencelj, Monika Jenko i Luke P. Lee. "Self-powered Imbibing Microfluidic Pump by Liquid Encapsulation: SIMPLE". Lab Chip 14, nr 22 (2014): 4329–33. http://dx.doi.org/10.1039/c4lc00920g.

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Wu, Xingming, Jianming Zheng, Gui Luo, Dan Zhu i Chunye Xu. "Photoelectrochromic devices based on cobalt complex electrolytes". RSC Advances 6, nr 85 (2016): 81680–84. http://dx.doi.org/10.1039/c6ra17666f.

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Hao, Shuai, Xiaoxuan Sun, He Zhang, Junfeng Zhai i Shaojun Dong. "Recent development of biofuel cell based self-powered biosensors". Journal of Materials Chemistry B 8, nr 16 (2020): 3393–407. http://dx.doi.org/10.1039/c9tb02428j.

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Oliveira, Helinando Pequeno de. "Wearable Nanogenerators: Working Principle and Self-Powered Biosensors Applications". Electrochem 2, nr 1 (28.02.2021): 118–34. http://dx.doi.org/10.3390/electrochem2010010.

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Wearable self-powered sensors represent a theme of interest in the literature due to the progress in the Internet of Things and implantable devices. The integration of different materials to harvest energy from body movement or the environment to power up sensors or act as an active component of the detection of analytes is a frontier to be explored. This review describes the most relevant studies of the integration of nanogenerators in wearables based on the interaction of piezoelectric and triboelectric devices into more efficient and low-cost harvesting systems to power up batteries or to use the generated power to identify multiple analytes in self-powered sensors and biosensors.

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Bhat, Ganapati, Ujjwal Gupta, Yigit Tuncel, Fatih Karabacak, Sule Ozev i Umit Y. Ogras. "Self-Powered Wearable IoT Devices for Health and Activity Monitoring". Foundations and Trends® in Electronic Design Automation 13, nr 3 (2020): 145–269. http://dx.doi.org/10.1561/1000000056.

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Al-Kaseem, Bilal R., Anas F. Ahmed, Aws M. Abdullah, Tariq Z. Azouz, Sadeq D. Al-Majidi i Hamed S. Al-Raweshidy. "Self-Powered 6LoWPAN Sensor Node for Green IoT Edge Devices". IOP Conference Series: Materials Science and Engineering 928 (19.11.2020): 022060. http://dx.doi.org/10.1088/1757-899x/928/2/022060.

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Chao, Paul C. P. "Energy Harvesting Electronics for Vibratory Devices in Self-Powered Sensors". IEEE Sensors Journal 11, nr 12 (grudzień 2011): 3106–21. http://dx.doi.org/10.1109/jsen.2011.2167965.

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Parvez Mahmud, M. A., Nazmul Huda, Shahjadi Hisan Farjana, Mohsen Asadnia i Candace Lang. "Recent Advances in Nanogenerator-Driven Self-Powered Implantable Biomedical Devices". Advanced Energy Materials 8, nr 2 (18.09.2017): 1701210. http://dx.doi.org/10.1002/aenm.201701210.

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