Nanowerk April 19, 2022 Although triboelectric nanogenerators (TENGs) have proven to be excellent candidates for wearable energy harvesters, they commonly face the hurdles of poor adhesion to skin and relative thick in geometry up to several cm. Researchers in China have introduced tattoo-like triboelectric nanogenerators (TL-TENGs) made with ultrathin materials with outstanding mechanical property of high robustness and thickness of tens of μm. They have remarkable electrical characteristics, with open-circuit voltage and short circuit current reaching up to ≈180 V and ≈2.2 μA under constant tapping (≈16 kPa), respectively. With the well structural mechanics designs, the TL-TENGs can be customized […]
Tag Archives: Triboelectric nanogenerators
Good vibrations for new energy
Nanowerk October 20, 2020 Triboelectric nanogenerators (TENGs) can be made at low cost in different configurations, making them suitable for driving small electronics such as mobile phones, biomechanics devices, and sensors. Researchers in Australia provide experimental and theoretical models for augmented rotary TENGs. The power generated by TENGs is found to be a function of the number of segments, rotational speed, and tribo-surface spacing. They applied mathematical modeling combined with artificial intelligence to characterize the TENG output under various kinematics and geometric conditions. Sensitivity analysis reveals that the generated energy and the matched resistance depend highly on segmentation and angular […]
With nanogenerators, static electricity as strong as lightening can be saved in a battery
Nanowerk February 6, 2020 Researchers in South Korea have developed a one-step process of thermal nanoimprinting and simultaneous electric poling to increase the total energy obtained by each cycle of triboelectric nanogenerators (TENGs) with a ferroelectric thermoplastic polymer. They invented an integrated circuit that converted temporary and unstable electric energy generated by a triboelectric nanogenerator into reliable power source. They demonstrated that even when 2.5 µW of energy was input, the conversion efficiency recorded over 70% and that stable power of 1.8V was obtained without external power supply when this circuit was used. This amount of power was enough to […]