Results 51 to 60 of about 2,770 (201)

Wavy‐Interlocked Stretchable Triboelectric Nanogenerators Enhanced by Liquid Metal Microflowers for Self‐Powered Wearable Motion Monitoring

open access: yesAdvanced Science, EarlyView.
Schematic showing a stretchable triboelectric nanogenerator based on interlocked wavy architectures that uses EGaIn microflower‐embedded PVDF‐TrFE and Nylon‐6 nanofiber membranes. The multi‐petaled, electron‐rich EGaIn microflowers enhance interfacial polarization and capacitance, while the interlocked wavy architecture enlarges the effective contact ...
Qianqian Xu   +12 more
wiley   +1 more source

Enhancement of the Triboelectrification Using Artificial Surface Charges

open access: yesIEEE Access, 2020
Triboelectrification is a novel technology to harvest electricity from unexploited environmental energy. Its efficiency depends on the area, morphology and charges on the in-contact surfaces.
Muhammad Abdullah   +6 more
doaj   +1 more source

Multi‐Force‐Driven Self‐Recoverable SWIR Mechanoluminescence for Underwater Communication

open access: yesAdvanced Science, EarlyView.
This study represents the first demonstration of self‐recoverable mechanoluminescent (ML) within a single material across diverse mechanical modes, enabled by the synergistic coupling of piezoelectric and triboelectric effects. Through a combinatorial doping approach, the MgNb2O6 crystal exhibits breakthrough short‐wavelength infrared ML performance ...
Jie Sun   +13 more
wiley   +1 more source

Techniques for surface charge measurements and exploring contact electrification

open access: yesFriction
Contact electrification (CE) is one of the most important physical phenomena within the realm of surface science, with a history spanning over 2,600 years.
Shiquan Lin, Chi Zhang, Tianmin Shao
doaj   +1 more source

Contact De-electrification of Electrostatically Charged Polymers [PDF]

open access: yes, 2014
The contact electrification of insulating organic polymers is still incompletely understood, in part because multiple fundamental mechanisms may contribute to the movement of charge.
Kwok, Sen Wai   +3 more
core   +1 more source

Tunable Plug‐and‐Play Meta‐Nanogenerator Materials for Multi‐Range Force Measurements

open access: yesAdvanced Science, EarlyView.
The multifunctional and tunable meta‐nanogenerator material system combines a mechanical metamaterial and a triboelectric nanogenerator enabling self‐powered, real‐time force sensing across application‐specific ranges. Geometrical tuning adjusts stiffness and the force sensing range, while modular integration streamlines assembly.
Roshira Premadasa   +6 more
wiley   +1 more source

Self-Powered Fine Dust Filtration Using Triboelectrification-Induced Electric Field

open access: yesNanoscale Research Letters, 2022
Particulate matter (PM) in the environment can adversely affect the health of living things. However, high removal efficiency and low-pressure loss are crucial design challenges for any air filtration system.
Young-Jun Kim   +4 more
doaj   +1 more source

Ares I-X: First Flight of a New Generation [PDF]

open access: yes, 2010
The Ares I-X suborbital development flight test demonstrated NASA s ability to design, develop, launch and control a new human-rated launch vehicle (Figure 14).
Askins, Bruce R., Davis, Stephan R.
core   +1 more source

Triboelectrification and dissolution property enhancements of solid dispersions [PDF]

open access: yesInternational Journal of Pharmaceutics, 2015
The use of solid dispersion techniques to modify physicochemical properties and improve solubility and dissolution rate may result in alteration to electrostatic properties of particles. Particle triboelectrification plays an important part in powder processing, affecting end product quality due to particle deposition and powder loss.
Kofi Asare-Addo   +5 more
openaire   +2 more sources

GaIn‐Induced Polarization Control in PVDF for High‐Efficiency Energy Harvesting and Instantaneous Wireless Sensing

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study presents a liquid metal–engineered β‐PVDF composite enabling high‐performance piezoelectric–triboelectric nanogenerators. Guided by MD/DFT simulations, GaIn doping promotes β‐phase formation and dipole alignment, while native oxides enhance charge retention.
Jiaqi Lu   +13 more
wiley   +1 more source

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