Nano Energy, Год журнала: 2023, Номер 120, С. 109185 - 109185
Опубликована: Дек. 12, 2023
Язык: Английский
Advanced Materials Technologies, Год журнала: 2025, Номер unknown
Опубликована: Янв. 14, 2025
Abstract Droplet‐based electricity generators (DEGs) harness liquid‐solid electrification to convert water droplets impacts into electrical energy. This study systematically examines how droplet height, volume, flow rate, and substrate tilt angle influence DEG performance using polytetrafluoroethylene (PTFE) as a triboelectric layer deionized water. Three electrode designs (double, top, bottom) are evaluated, revealing that the double‐electrode configuration delivers highest output. enhanced arises from synergistic motion, double‐layer formation, charge discharge, validated by an equivalent circuit model. By varying heights 1–20 cm, volumes of 7.7–50 µL, rates 50–300 drops/min, angles 0–90°, optimized setup yields −70 V 22 mA, translating power density 0.28 µW cm −2 . High‐speed imaging correlates these outputs with impact dynamics resulting transfer. Additionally, can small electronic devices, capacitors, monitor artificial acid rain in real‐time, displaying distinct signals compared typical rainwater. These findings underscore potential DEGs renewable energy harvesters smart environmental sensors, paving way for advanced on‐demand generation diverse settings.
Язык: Английский
Процитировано
2
ACS Applied Materials & Interfaces, Год журнала: 2025, Номер 17(9), С. 13762 - 13772
Опубликована: Фев. 21, 2025
With the advent of droplet-based triboelectric nanogenerators (D-TENGs), methods for converting raindrop kinetic energy to electrical have developed rapidly. However, current D-TENG designs suffer from slow solid-liquid interface separation speeds and susceptibility liquid residues. These issues compromise output performance D-TENGs limit their applications in high-power appliances. To address this, this study presents a needle electrode nanogenerator (NED-TENG). The functions as top electrode, optimizing contacts efficiently harvesting by leveraging electrostatic induction mechanisms. This is made one end copper wire, with its other directly connected harvester. setup positions all wiring on back substrate, accelerating separation, mitigating residue formation, simplifying device fabrication. Upon assembly device, several factors influencing fabricated action mechanisms are explored improve efficiency. Experimental results reveal that designed only requires 6 s saturate surface charge polytetrafluoroethylene film, achieving short-circuit (ISC) up 4.76 mA an voltage (V0) 563 V. Overall, offers straightforward effective approach rainwater.
Язык: Английский
Процитировано
1
Matter, Год журнала: 2025, Номер unknown, С. 102007 - 102007
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
1
InfoMat, Год журнала: 2022, Номер 5(2)
Опубликована: Дек. 8, 2022
Abstract Rapid iterations of sensing, energy, and communication technologies transform traditional agriculture into standardized, intensive, smart modern agriculture. However, the energy supply challenge for plentiful sensors or other microdevices constraints extensive application intelligent in Triboelectric nanogenerator (TENG), which efficiently converts mechanical electrical through contact electrification electrostatic induction, is considered a promising way to build next‐generation networks. By harvesting low‐frequency from agricultural environment, including wind, rain, water flow TENGs can be strong contender distributed power microdevice networks In addition, highly customizable combined with enable self‐powered monitoring production strategy adjustment. deeply exploring potential TENG agriculture, it conducive further promoting unmanned production, refinement, intelligence enhancing agriculture's ability combat natural risks. image
Язык: Английский
Процитировано
39
Nano-Structures & Nano-Objects, Год журнала: 2023, Номер 34, С. 100980 - 100980
Опубликована: Апрель 1, 2023
Язык: Английский
Процитировано
22
Advanced Science, Год журнала: 2023, Номер 10(26)
Опубликована: Июль 12, 2023
Abstract Invisible power generation by natural and artificial light enables sustainability onsite‐power deployment, lower cost, minimal burden on the built environment. However, dark, opaque photovoltaics limit utilization in a transparent way. Herein, it is proposed that active energy window (AEW) invisibly features production, providing higher freedom for onsite generators objects without limiting human vision. The AEW has photovoltaic (TPV) heater (TH) to remove effects of shadows from snow recover lost. Moreover, heating function applied weathering related snow. prototype integrates TPV‐TH, offering ultraviolet (UV)‐blocking, daylighting, thermal comfort, with conversion efficiency 3% (AM1.5G). Field‐induced electrodes are TPV‐TH designed considering AEW. Owing these electrodes, ensure wide field‐of‐view optical dead zones, ensuring see‐through first integration performed into 2 cm ‐window generates 6 mW an average visible transmittance ≈39%. It believed can be utilized comfort through self‐sustainable buildings vehicles.
Язык: Английский
Процитировано
19
Nanoenergy Advances, Год журнала: 2023, Номер 3(2), С. 101 - 125
Опубликована: Апрель 18, 2023
Facing the energy consumption of a huge number distributed wireless Internet Things (IoT) sensor nodes, scavenging from ambient environment to power these devices is considered be promising method. Moreover, abundant sources various types are widely in surrounding environment, which can converted into electrical by micro-nano harvesters based on different mechanisms. In this review paper, we briefly introduce development according classification target sources, including microscale and nanoscale for vibrational non-vibrational hybrid sources. Furthermore, current advances future prospects applications event-based IoT systems self-sustained discussed.
Язык: Английский
Процитировано
18
Advanced Functional Materials, Год журнала: 2024, Номер 34(36)
Опубликована: Март 3, 2024
Abstract As large‐area and optically transparent photon harvesting devices, luminescent solar concentrators (LSCs) are promising candidates for building‐integrated photovoltaics owing to their high transmittance resistance shadowing effects existing in cells. Up now, there still many challenges the practical application of LSCs: 1) Reabsorption loss is inevitable during photoluminescence transmission due indirect illumination cells LSC system. 2) Satisfactory energy cannot be achieved rainy conditions substantial attenuation incident light intensity. 3) Evaporation residue on surface LSCs leads device performance degradation. Pioneering researches feasible strategies reabsorption suppression, days as well self‐cleaning property lacking demonstration. In this work, suppressed based advanced structural with universally applicable optical spacer layer. Then integrated droplet‐based electricity generator (DEG) proposed first time. Such DEG‐LSCs not only realize synergistic raindrop energy, but also possess properties. Finally, a self‐powered temperature humidity sensing system designed demonstrated provide ideas intelligent buildings.
Язык: Английский
Процитировано
9
Scientific Reports, Год журнала: 2024, Номер 14(1)
Опубликована: Май 7, 2024
Converting dispersed mechanical energy into electrical can effectively improve the global shortage problem. The generated by liquid flow has a good application prospect as one of most widely used renewable sources. Solid-liquid triboelectric nanogenerator (S-L TENG) is an inspiring device that convert liquids energy. In order to promote design and applications S-L TENG, it vital importance understand underlying mechanisms conversion output affecters. current research mainly focuses on selection materials, structural characteristics, droplet type, working environment parameters, so obtain different power meet supply needs diversified scenarios. There are also studies construct theoretical model TENG potential distribution mechanism through COMSOL software, well adsorption status kinds ions with functional groups surface friction generation layer molecular dynamics simulation. this review, we summarize main factors affecting from four perspectives: environment, layer, conductive part, substrate shape. Also summarized latest in capture, wearable devices, medical applications. Ultimately, review suggests directions should focus future enhance output, expand diversity
Язык: Английский
Процитировано
9
ACS Nano, Год журнала: 2024, Номер 18(35), С. 23912 - 23940
Опубликована: Авг. 21, 2024
The natural water cycle on the Earth carries an enormous amount of energy as thirty-five percent solar reaching Earth's surface goes into water. However, only a very marginal part contained energy, mostly kinetic large volume bulk water, is harvested by hydroelectric power plants. Natural processes in cycle, such rainfall, evaporation, and moisture adsorption, are widespread but have remained underexploited past due to lack appropriate technologies. In decade, emergence hydrovoltaic technology has provided ever-increasing opportunities extend technical capability for harvesting from cycle. Featuring electricity generation mechanical-electric coupling at water-solid interface, embraces almost all dynamic associated with including raining, waving, flowing, evaporating, adsorbing. This versatility dealing various forms renders solution fossil fuel-caused environmental problems. Here, we review current progress motion, ambient moisture. Device configuration, conversion mechanism mediated interfaces, well materials selection functionalization discussed. Useful strategies guided established mechanisms device optimization then covered. Finally, provide outlook this emerging field outline challenges improving output performance toward potential practical applications.
Язык: Английский
Процитировано
8